Difference: L1MuonHardwarePublicResults (1 vs. 34)

Revision 342018-12-04 - MarkStockton

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 12 to 12
 Approved plots that can be shown by ATLAS speakers at conferences and similar events. Please do not add figures on your own. Contact the responsible project leader in case of questions and/or suggestions.
Added:
>
>

SROD for L1 End-cap Muon Trigger

SROD performance at CERN test bench: ATL-DAQ-PROC-2018-032 (June 2018)

The measured the performance of the SROD system using the CERN test-bench environment. The setup used: 12 SL boards, 1 TTC-Fanout board, 1 SROD PC and the basic trigger systems. This test does not use the ROS or SFO systems of the full ATLAS Level-1 end-cap muon trigger system.

Measured output rate is shown as a function of the input data size. The Level-1 trigger rate was fixed to 100 kHz and the input data size was changed. The x-axis means the input data transfer rate per a SL board.

.png
png pdf

contact: Kosuke Takeda, Stefano Veneziano
The measured the performance of the SROD system using the CERN test-bench environment. The setup used: 12 SL boards, 1 TTC-Fanout board, 1 SROD PC, 1 ROS PC, 1 SFO PC and the basic trigger systems. This setup reproduces the ATLAS Level-1 end-cap muon trigger system.

Measured output rate is shown as a function of the Level-1 trigger rate. The Level-1 trigger rate was changed and the input data size was fixed. The x-axis means the Level-1 trigger rate, and the y-axis means the SROD processing rate.

.png
png pdf

contact: Kosuke Takeda, Stefano Veneziano
 


Major updates:
Changed:
<
<
-- StefanoVeneziano - 19-Nov-2018 Responsible: StefanoVeneziano
>
>
-- StefanoVeneziano - 19-Nov-2018
Responsible: StefanoVeneziano
<!--cloned from L1MuonTriggerPublicResults -->
 Subject: public

Changed:
<
<
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.pdf" attr="" comment="" date="1447238930" name="mu20tbp_vs_lumi.pdf" path="mu20tbp_vs_lumi.pdf" size="222389" user="strom" version="1"
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.png" attr="" comment="" date="1447238930" name="mu20tbp_vs_lumi.png" path="mu20tbp_vs_lumi.png" size="142406" user="strom" version="1"
>
>
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.pdf" attr="h" comment="To be removed" date="1447238930" name="mu20tbp_vs_lumi.pdf" path="mu20tbp_vs_lumi.pdf" size="222389" user="strom" version="1"
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.png" attr="h" comment="To be removed" date="1447238930" name="mu20tbp_vs_lumi.png" path="mu20tbp_vs_lumi.png" size="142406" user="strom" version="1"
 
META FILEATTACHMENT attachment="fig_01.pdf" attr="h" comment="To be removed" date="1455900633" name="fig_01.pdf" path="fig_01.pdf" size="39152" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_01.png" attr="h" comment="To be removed" date="1455900633" name="fig_01.png" path="fig_01.png" size="31891" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_02.pdf" attr="h" comment="To be removed" date="1455900942" name="fig_02.pdf" path="fig_02.pdf" size="40585" user="dellasta" version="1"
Line: 47 to 87
 
META FILEATTACHMENT attachment="fig_11.pdf" attr="h" comment="To be removed" date="1455900978" name="fig_11.pdf" path="fig_11.pdf" size="18018" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_11.png" attr="h" comment="To be removed" date="1455900978" name="fig_11.png" path="fig_11.png" size="48418" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_12.pdf" attr="h" comment="To be removed" date="1455901018" name="fig_12.pdf" path="fig_12.pdf" size="16844" user="dellasta" version="1"
Changed:
<
<
META FILEATTACHMENT attachment="fig_12.png" attr="" comment="" date="1455901018" name="fig_12.png" path="fig_12.png" size="19745" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.pdf" attr="" comment="" date="1455901018" name="fig_13.pdf" path="fig_13.pdf" size="14870" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.png" attr="" comment="" date="1455901018" name="fig_13.png" path="fig_13.png" size="12938" user="dellasta" version="1"
>
>
META FILEATTACHMENT attachment="fig_12.png" attr="h" comment="To be removed" date="1455901018" name="fig_12.png" path="fig_12.png" size="19745" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.pdf" attr="h" comment="To be removed" date="1455901018" name="fig_13.pdf" path="fig_13.pdf" size="14870" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.png" attr="h" comment="To be removed" date="1455901018" name="fig_13.png" path="fig_13.png" size="12938" user="dellasta" version="1"
 
META FILEATTACHMENT attachment="atl-com-daq-2015-205.tar.gz" attr="h" comment="To be removed" date="1481643093" name="atl-com-daq-2015-205.tar.gz" path="atl-com-daq-2015-205.tar.gz" size="1110112" user="mishino" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.eps" attr="h" comment="To be removed" date="1495536527" name="eff_th3_allsec.eps" path="eff_th3_allsec.eps" size="14530" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.pdf" attr="h" comment="To be removed" date="1495536527" name="eff_th3_allsec.pdf" path="eff_th3_allsec.pdf" size="14747" user="dellasta" version="1"
Line: 60 to 100
 
META FILEATTACHMENT attachment="eff_th3_sec14.eps" attr="h" comment="To be removed" date="1495536567" name="eff_th3_sec14.eps" path="eff_th3_sec14.eps" size="20350" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.pdf" attr="h" comment="To be removed" date="1495536567" name="eff_th3_sec14.pdf" path="eff_th3_sec14.pdf" size="17942" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.png" attr="h" comment="To be removed" date="1495536567" name="eff_th3_sec14.png" path="eff_th3_sec14.png" size="51532" user="dellasta" version="1"
Changed:
<
<
META FILEATTACHMENT attachment="phiHi.eps" attr="" comment="" date="1495536567" name="phiHi.eps" path="phiHi.eps" size="14650" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiHi.pdf" attr="" comment="" date="1495536567" name="phiHi.pdf" path="phiHi.pdf" size="17858" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiHi.png" attr="" comment="" date="1495536567" name="phiHi.png" path="phiHi.png" size="75814" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.eps" attr="" comment="" date="1495536567" name="phiLow.eps" path="phiLow.eps" size="14701" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.pdf" attr="" comment="" date="1495536567" name="phiLow.pdf" path="phiLow.pdf" size="17852" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.png" attr="" comment="" date="1495536567" name="phiLow.png" path="phiLow.png" size="72198" user="dellasta" version="1"
>
>
META FILEATTACHMENT attachment="phiHi.eps" attr="h" comment="To be removed" date="1495536567" name="phiHi.eps" path="phiHi.eps" size="14650" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiHi.pdf" attr="h" comment="To be removed" date="1495536567" name="phiHi.pdf" path="phiHi.pdf" size="17858" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiHi.png" attr="h" comment="To be removed" date="1495536567" name="phiHi.png" path="phiHi.png" size="75814" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.eps" attr="h" comment="To be removed" date="1495536567" name="phiLow.eps" path="phiLow.eps" size="14701" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.pdf" attr="h" comment="To be removed" date="1495536567" name="phiLow.pdf" path="phiLow.pdf" size="17852" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.png" attr="h" comment="To be removed" date="1495536567" name="phiLow.png" path="phiLow.png" size="72198" user="dellasta" version="1"
 
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU10.eps" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec12_MU10.eps" path="LHCC_Sep2017_sec12_MU10.eps" size="20483" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU10.pdf" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec12_MU10.pdf" path="LHCC_Sep2017_sec12_MU10.pdf" size="18180" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_mu10.png" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec12_mu10.png" path="LHCC_Sep2017_sec12_mu10.png" size="14528" user="dellasta" version="1"
Line: 107 to 147
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig2.png" attr="h" comment="To be removed" date="1527475412" name="ATL-COM-DAQ-2018-033-fig2.png" path="ATL-COM-DAQ-2018-033-fig2.png" size="24038" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.eps" attr="h" comment="To be removed" date="1527475412" name="ATL-COM-DAQ-2018-033-fig1.eps" path="ATL-COM-DAQ-2018-033-fig1.eps" size="24631" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.pdf" attr="h" comment="To be removed" date="1527475412" name="ATL-COM-DAQ-2018-033-fig1.pdf" path="ATL-COM-DAQ-2018-033-fig1.pdf" size="17436" user="junpei" version="1"
Added:
>
>
META FILEATTACHMENT attachment="SRODPerformance-200kHz.pdf" attr="" comment="" date="1543927148" name="SRODPerformance-200kHz.pdf" path="SRODPerformance-200kHz.pdf" size="13907822" user="mark" version="1"
META FILEATTACHMENT attachment="SRODPerformance-200kHz.png" attr="" comment="" date="1543927148" name="SRODPerformance-200kHz.png" path="SRODPerformance-200kHz.png" size="57030" user="mark" version="1"
META FILEATTACHMENT attachment="SRODPerformance-SlinkLimit.pdf" attr="" comment="" date="1543927148" name="SRODPerformance-SlinkLimit.pdf" path="SRODPerformance-SlinkLimit.pdf" size="13907825" user="mark" version="1"
META FILEATTACHMENT attachment="SRODPerformance-SlinkLimit.png" attr="" comment="" date="1543927148" name="SRODPerformance-SlinkLimit.png" path="SRODPerformance-SlinkLimit.png" size="47841" user="mark" version="1"

Revision 332018-12-04 - MarkStockton

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 17 to 17
 
Major updates:
-- StefanoVeneziano - 19-Nov-2018
Changed:
<
<
Responsible: %REVINFO{"$wikiusername" rev="1.1"}%
>
>
Responsible: %REVINFO{"$wikiusername" rev="1.31"}%
 Subject: public

META FILEATTACHMENT attachment="mu20tbp_vs_lumi.pdf" attr="" comment="" date="1447238930" name="mu20tbp_vs_lumi.pdf" path="mu20tbp_vs_lumi.pdf" size="222389" user="strom" version="1"
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.png" attr="" comment="" date="1447238930" name="mu20tbp_vs_lumi.png" path="mu20tbp_vs_lumi.png" size="142406" user="strom" version="1"
Changed:
<
<
META FILEATTACHMENT attachment="fig_01.pdf" attr="" comment="" date="1455900633" name="fig_01.pdf" path="fig_01.pdf" size="39152" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_01.png" attr="" comment="" date="1455900633" name="fig_01.png" path="fig_01.png" size="31891" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_02.pdf" attr="" comment="" date="1455900942" name="fig_02.pdf" path="fig_02.pdf" size="40585" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_02.png" attr="" comment="" date="1455900942" name="fig_02.png" path="fig_02.png" size="51382" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_03.pdf" attr="" comment="" date="1455900942" name="fig_03.pdf" path="fig_03.pdf" size="20176" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_03.png" attr="" comment="" date="1455900942" name="fig_03.png" path="fig_03.png" size="22012" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_04.pdf" attr="" comment="" date="1455900942" name="fig_04.pdf" path="fig_04.pdf" size="14591" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_04.png" attr="" comment="" date="1455900942" name="fig_04.png" path="fig_04.png" size="13370" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_05.pdf" attr="" comment="" date="1455900942" name="fig_05.pdf" path="fig_05.pdf" size="19203" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_05.png" attr="" comment="" date="1455900942" name="fig_05.png" path="fig_05.png" size="15941" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_06.pdf" attr="" comment="" date="1455900942" name="fig_06.pdf" path="fig_06.pdf" size="20020" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_06.png" attr="" comment="" date="1455900942" name="fig_06.png" path="fig_06.png" size="16302" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_07.pdf" attr="" comment="" date="1455900978" name="fig_07.pdf" path="fig_07.pdf" size="14746" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_07.png" attr="" comment="" date="1455900978" name="fig_07.png" path="fig_07.png" size="17607" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_08.pdf" attr="" comment="" date="1455900978" name="fig_08.pdf" path="fig_08.pdf" size="15540" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_08.png" attr="" comment="" date="1455900978" name="fig_08.png" path="fig_08.png" size="20454" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_09.pdf" attr="" comment="" date="1455911386" name="fig_09.pdf" path="fig_09.pdf" size="21133" user="dellasta" version="2"
META FILEATTACHMENT attachment="fig_09.png" attr="" comment="" date="1455911411" name="fig_09.png" path="fig_09.png" size="17560" user="dellasta" version="2"
META FILEATTACHMENT attachment="fig_10.pdf" attr="" comment="" date="1455900978" name="fig_10.pdf" path="fig_10.pdf" size="19110" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_10.png" attr="" comment="" date="1455900978" name="fig_10.png" path="fig_10.png" size="50454" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_11.pdf" attr="" comment="" date="1455900978" name="fig_11.pdf" path="fig_11.pdf" size="18018" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_11.png" attr="" comment="" date="1455900978" name="fig_11.png" path="fig_11.png" size="48418" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_12.pdf" attr="" comment="" date="1455901018" name="fig_12.pdf" path="fig_12.pdf" size="16844" user="dellasta" version="1"
>
>
META FILEATTACHMENT attachment="fig_01.pdf" attr="h" comment="To be removed" date="1455900633" name="fig_01.pdf" path="fig_01.pdf" size="39152" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_01.png" attr="h" comment="To be removed" date="1455900633" name="fig_01.png" path="fig_01.png" size="31891" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_02.pdf" attr="h" comment="To be removed" date="1455900942" name="fig_02.pdf" path="fig_02.pdf" size="40585" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_02.png" attr="h" comment="To be removed" date="1455900942" name="fig_02.png" path="fig_02.png" size="51382" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_03.pdf" attr="h" comment="To be removed" date="1455900942" name="fig_03.pdf" path="fig_03.pdf" size="20176" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_03.png" attr="h" comment="To be removed" date="1455900942" name="fig_03.png" path="fig_03.png" size="22012" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_04.pdf" attr="h" comment="To be removed" date="1455900942" name="fig_04.pdf" path="fig_04.pdf" size="14591" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_04.png" attr="h" comment="To be removed" date="1455900942" name="fig_04.png" path="fig_04.png" size="13370" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_05.pdf" attr="h" comment="To be removed" date="1455900942" name="fig_05.pdf" path="fig_05.pdf" size="19203" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_05.png" attr="h" comment="To be removed" date="1455900942" name="fig_05.png" path="fig_05.png" size="15941" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_06.pdf" attr="h" comment="To be removed" date="1455900942" name="fig_06.pdf" path="fig_06.pdf" size="20020" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_06.png" attr="h" comment="To be removed" date="1455900942" name="fig_06.png" path="fig_06.png" size="16302" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_07.pdf" attr="h" comment="To be removed" date="1455900978" name="fig_07.pdf" path="fig_07.pdf" size="14746" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_07.png" attr="h" comment="To be removed" date="1455900978" name="fig_07.png" path="fig_07.png" size="17607" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_08.pdf" attr="h" comment="To be removed" date="1455900978" name="fig_08.pdf" path="fig_08.pdf" size="15540" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_08.png" attr="h" comment="To be removed" date="1455900978" name="fig_08.png" path="fig_08.png" size="20454" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_09.pdf" attr="h" comment="To be removed" date="1455911386" name="fig_09.pdf" path="fig_09.pdf" size="21133" user="dellasta" version="2"
META FILEATTACHMENT attachment="fig_09.png" attr="h" comment="To be removed" date="1455911411" name="fig_09.png" path="fig_09.png" size="17560" user="dellasta" version="2"
META FILEATTACHMENT attachment="fig_10.pdf" attr="h" comment="To be removed" date="1455900978" name="fig_10.pdf" path="fig_10.pdf" size="19110" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_10.png" attr="h" comment="To be removed" date="1455900978" name="fig_10.png" path="fig_10.png" size="50454" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_11.pdf" attr="h" comment="To be removed" date="1455900978" name="fig_11.pdf" path="fig_11.pdf" size="18018" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_11.png" attr="h" comment="To be removed" date="1455900978" name="fig_11.png" path="fig_11.png" size="48418" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_12.pdf" attr="h" comment="To be removed" date="1455901018" name="fig_12.pdf" path="fig_12.pdf" size="16844" user="dellasta" version="1"
 
META FILEATTACHMENT attachment="fig_12.png" attr="" comment="" date="1455901018" name="fig_12.png" path="fig_12.png" size="19745" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.pdf" attr="" comment="" date="1455901018" name="fig_13.pdf" path="fig_13.pdf" size="14870" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.png" attr="" comment="" date="1455901018" name="fig_13.png" path="fig_13.png" size="12938" user="dellasta" version="1"
Changed:
<
<
META FILEATTACHMENT attachment="atl-com-daq-2015-205.tar.gz" attr="" comment="" date="1481643093" name="atl-com-daq-2015-205.tar.gz" path="atl-com-daq-2015-205.tar.gz" size="1110112" user="mishino" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.eps" attr="" comment="" date="1495536527" name="eff_th3_allsec.eps" path="eff_th3_allsec.eps" size="14530" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.pdf" attr="" comment="" date="1495536527" name="eff_th3_allsec.pdf" path="eff_th3_allsec.pdf" size="14747" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.png" attr="" comment="" date="1495536527" name="eff_th3_allsec.png" path="eff_th3_allsec.png" size="53953" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec12.eps" attr="" comment="" date="1495536527" name="eff_th3_sec12.eps" path="eff_th3_sec12.eps" size="20335" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec12.pdf" attr="" comment="" date="1495536527" name="eff_th3_sec12.pdf" path="eff_th3_sec12.pdf" size="17905" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec12.png" attr="" comment="" date="1495536527" name="eff_th3_sec12.png" path="eff_th3_sec12.png" size="51953" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.eps" attr="" comment="" date="1495536567" name="eff_th3_sec14.eps" path="eff_th3_sec14.eps" size="20350" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.pdf" attr="" comment="" date="1495536567" name="eff_th3_sec14.pdf" path="eff_th3_sec14.pdf" size="17942" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.png" attr="" comment="" date="1495536567" name="eff_th3_sec14.png" path="eff_th3_sec14.png" size="51532" user="dellasta" version="1"
>
>
META FILEATTACHMENT attachment="atl-com-daq-2015-205.tar.gz" attr="h" comment="To be removed" date="1481643093" name="atl-com-daq-2015-205.tar.gz" path="atl-com-daq-2015-205.tar.gz" size="1110112" user="mishino" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.eps" attr="h" comment="To be removed" date="1495536527" name="eff_th3_allsec.eps" path="eff_th3_allsec.eps" size="14530" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.pdf" attr="h" comment="To be removed" date="1495536527" name="eff_th3_allsec.pdf" path="eff_th3_allsec.pdf" size="14747" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.png" attr="h" comment="To be removed" date="1495536527" name="eff_th3_allsec.png" path="eff_th3_allsec.png" size="53953" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec12.eps" attr="h" comment="To be removed" date="1495536527" name="eff_th3_sec12.eps" path="eff_th3_sec12.eps" size="20335" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec12.pdf" attr="h" comment="To be removed" date="1495536527" name="eff_th3_sec12.pdf" path="eff_th3_sec12.pdf" size="17905" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec12.png" attr="h" comment="To be removed" date="1495536527" name="eff_th3_sec12.png" path="eff_th3_sec12.png" size="51953" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.eps" attr="h" comment="To be removed" date="1495536567" name="eff_th3_sec14.eps" path="eff_th3_sec14.eps" size="20350" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.pdf" attr="h" comment="To be removed" date="1495536567" name="eff_th3_sec14.pdf" path="eff_th3_sec14.pdf" size="17942" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.png" attr="h" comment="To be removed" date="1495536567" name="eff_th3_sec14.png" path="eff_th3_sec14.png" size="51532" user="dellasta" version="1"
 
META FILEATTACHMENT attachment="phiHi.eps" attr="" comment="" date="1495536567" name="phiHi.eps" path="phiHi.eps" size="14650" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiHi.pdf" attr="" comment="" date="1495536567" name="phiHi.pdf" path="phiHi.pdf" size="17858" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiHi.png" attr="" comment="" date="1495536567" name="phiHi.png" path="phiHi.png" size="75814" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.eps" attr="" comment="" date="1495536567" name="phiLow.eps" path="phiLow.eps" size="14701" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.pdf" attr="" comment="" date="1495536567" name="phiLow.pdf" path="phiLow.pdf" size="17852" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.png" attr="" comment="" date="1495536567" name="phiLow.png" path="phiLow.png" size="72198" user="dellasta" version="1"
Changed:
<
<
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU10.eps" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_MU10.eps" path="LHCC_Sep2017_sec12_MU10.eps" size="20483" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU10.pdf" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_MU10.pdf" path="LHCC_Sep2017_sec12_MU10.pdf" size="18180" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_mu10.png" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_mu10.png" path="LHCC_Sep2017_sec12_mu10.png" size="14528" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU11.eps" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_MU11.eps" path="LHCC_Sep2017_sec12_MU11.eps" size="20501" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU11.pdf" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_MU11.pdf" path="LHCC_Sep2017_sec12_MU11.pdf" size="18204" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_mu11.png" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_mu11.png" path="LHCC_Sep2017_sec12_mu11.png" size="14475" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU10.eps" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec14_MU10.eps" path="LHCC_Sep2017_sec14_MU10.eps" size="20496" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU10.pdf" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec14_MU10.pdf" path="LHCC_Sep2017_sec14_MU10.pdf" size="18256" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_mu10.png" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec14_mu10.png" path="LHCC_Sep2017_sec14_mu10.png" size="14554" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU11.eps" attr="" comment="" date="1505329815" name="LHCC_Sep2017_sec14_MU11.eps" path="LHCC_Sep2017_sec14_MU11.eps" size="20492" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU11.pdf" attr="" comment="" date="1505329815" name="LHCC_Sep2017_sec14_MU11.pdf" path="LHCC_Sep2017_sec14_MU11.pdf" size="18265" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_mu11.png" attr="" comment="" date="1505329815" name="LHCC_Sep2017_sec14_mu11.png" path="LHCC_Sep2017_sec14_mu11.png" size="14532" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.eps" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.eps" path="LHCC_Sep2017_turn_on_2017.eps" size="15521" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.pdf" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.pdf" path="LHCC_Sep2017_turn_on_2017.pdf" size="17765" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.png" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.png" path="LHCC_Sep2017_turn_on_2017.png" size="19025" user="dellasta" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" path="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" size="56524" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" path="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" size="28505" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu10.eps" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu10.eps" path="ATL-COM-DAQ-2018-008-sector12_mu10.eps" size="20451" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu10.pdf" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu10.pdf" path="ATL-COM-DAQ-2018-008-sector12_mu10.pdf" size="224667" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu10.png" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu10.png" path="ATL-COM-DAQ-2018-008-sector12_mu10.png" size="19191" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu11.eps" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu11.eps" path="ATL-COM-DAQ-2018-008-sector12_mu11.eps" size="20441" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu11.pdf" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu11.pdf" path="ATL-COM-DAQ-2018-008-sector12_mu11.pdf" size="202504" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu11.png" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu11.png" path="ATL-COM-DAQ-2018-008-sector12_mu11.png" size="19480" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu10.eps" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector14_mu10.eps" path="ATL-COM-DAQ-2018-008-sector14_mu10.eps" size="20405" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu10.pdf" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector14_mu10.pdf" path="ATL-COM-DAQ-2018-008-sector14_mu10.pdf" size="228413" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu10.png" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector14_mu10.png" path="ATL-COM-DAQ-2018-008-sector14_mu10.png" size="19347" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu11.eps" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-sector14_mu11.eps" path="ATL-COM-DAQ-2018-008-sector14_mu11.eps" size="20423" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu11.pdf" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-sector14_mu11.pdf" path="ATL-COM-DAQ-2018-008-sector14_mu11.pdf" size="199659" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu11.png" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-sector14_mu11.png" path="ATL-COM-DAQ-2018-008-sector14_mu11.png" size="19570" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-time_vs_days.eps" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-time_vs_days.eps" path="ATL-COM-DAQ-2018-008-time_vs_days.eps" size="23742" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-time_vs_days.pdf" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-time_vs_days.pdf" path="ATL-COM-DAQ-2018-008-time_vs_days.pdf" size="59572" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-time_vs_days.png" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-time_vs_days.png" path="ATL-COM-DAQ-2018-008-time_vs_days.png" size="12073" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.eps" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.eps" path="ATL-COM-DAQ-2018-008-turnon.eps" size="15843" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.pdf" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.pdf" path="ATL-COM-DAQ-2018-008-turnon.pdf" size="61562" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.png" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.png" path="ATL-COM-DAQ-2018-008-turnon.png" size="23758" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.png" attr="" comment="" date="1527475411" name="ATL-COM-DAQ-2018-033-fig1.png" path="ATL-COM-DAQ-2018-033-fig1.png" size="15129" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig2.eps" attr="" comment="" date="1527475412" name="ATL-COM-DAQ-2018-033-fig2.eps" path="ATL-COM-DAQ-2018-033-fig2.eps" size="77324" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig2.pdf" attr="" comment="" date="1527475412" name="ATL-COM-DAQ-2018-033-fig2.pdf" path="ATL-COM-DAQ-2018-033-fig2.pdf" size="44393" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig2.png" attr="" comment="" date="1527475412" name="ATL-COM-DAQ-2018-033-fig2.png" path="ATL-COM-DAQ-2018-033-fig2.png" size="24038" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.eps" attr="" comment="" date="1527475412" name="ATL-COM-DAQ-2018-033-fig1.eps" path="ATL-COM-DAQ-2018-033-fig1.eps" size="24631" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.pdf" attr="" comment="" date="1527475412" name="ATL-COM-DAQ-2018-033-fig1.pdf" path="ATL-COM-DAQ-2018-033-fig1.pdf" size="17436" user="junpei" version="1"
>
>
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU10.eps" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec12_MU10.eps" path="LHCC_Sep2017_sec12_MU10.eps" size="20483" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU10.pdf" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec12_MU10.pdf" path="LHCC_Sep2017_sec12_MU10.pdf" size="18180" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_mu10.png" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec12_mu10.png" path="LHCC_Sep2017_sec12_mu10.png" size="14528" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU11.eps" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec12_MU11.eps" path="LHCC_Sep2017_sec12_MU11.eps" size="20501" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU11.pdf" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec12_MU11.pdf" path="LHCC_Sep2017_sec12_MU11.pdf" size="18204" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_mu11.png" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec12_mu11.png" path="LHCC_Sep2017_sec12_mu11.png" size="14475" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU10.eps" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec14_MU10.eps" path="LHCC_Sep2017_sec14_MU10.eps" size="20496" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU10.pdf" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec14_MU10.pdf" path="LHCC_Sep2017_sec14_MU10.pdf" size="18256" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_mu10.png" attr="h" comment="To be removed" date="1505328666" name="LHCC_Sep2017_sec14_mu10.png" path="LHCC_Sep2017_sec14_mu10.png" size="14554" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU11.eps" attr="h" comment="To be removed" date="1505329815" name="LHCC_Sep2017_sec14_MU11.eps" path="LHCC_Sep2017_sec14_MU11.eps" size="20492" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU11.pdf" attr="h" comment="To be removed" date="1505329815" name="LHCC_Sep2017_sec14_MU11.pdf" path="LHCC_Sep2017_sec14_MU11.pdf" size="18265" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_mu11.png" attr="h" comment="To be removed" date="1505329815" name="LHCC_Sep2017_sec14_mu11.png" path="LHCC_Sep2017_sec14_mu11.png" size="14532" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.eps" attr="h" comment="To be removed" date="1505329815" name="LHCC_Sep2017_turn_on_2017.eps" path="LHCC_Sep2017_turn_on_2017.eps" size="15521" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.pdf" attr="h" comment="To be removed" date="1505329815" name="LHCC_Sep2017_turn_on_2017.pdf" path="LHCC_Sep2017_turn_on_2017.pdf" size="17765" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.png" attr="h" comment="To be removed" date="1505329815" name="LHCC_Sep2017_turn_on_2017.png" path="LHCC_Sep2017_turn_on_2017.png" size="19025" user="dellasta" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" attr="h" comment="To be removed" date="1518981644" name="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" path="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" size="56524" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" attr="h" comment="To be removed" date="1518981644" name="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" path="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" size="28505" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu10.eps" attr="h" comment="To be removed" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu10.eps" path="ATL-COM-DAQ-2018-008-sector12_mu10.eps" size="20451" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu10.pdf" attr="h" comment="To be removed" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu10.pdf" path="ATL-COM-DAQ-2018-008-sector12_mu10.pdf" size="224667" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu10.png" attr="h" comment="To be removed" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu10.png" path="ATL-COM-DAQ-2018-008-sector12_mu10.png" size="19191" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu11.eps" attr="h" comment="To be removed" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu11.eps" path="ATL-COM-DAQ-2018-008-sector12_mu11.eps" size="20441" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu11.pdf" attr="h" comment="To be removed" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu11.pdf" path="ATL-COM-DAQ-2018-008-sector12_mu11.pdf" size="202504" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu11.png" attr="h" comment="To be removed" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu11.png" path="ATL-COM-DAQ-2018-008-sector12_mu11.png" size="19480" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu10.eps" attr="h" comment="To be removed" date="1518981672" name="ATL-COM-DAQ-2018-008-sector14_mu10.eps" path="ATL-COM-DAQ-2018-008-sector14_mu10.eps" size="20405" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu10.pdf" attr="h" comment="To be removed" date="1518981672" name="ATL-COM-DAQ-2018-008-sector14_mu10.pdf" path="ATL-COM-DAQ-2018-008-sector14_mu10.pdf" size="228413" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu10.png" attr="h" comment="To be removed" date="1518981672" name="ATL-COM-DAQ-2018-008-sector14_mu10.png" path="ATL-COM-DAQ-2018-008-sector14_mu10.png" size="19347" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu11.eps" attr="h" comment="To be removed" date="1518981703" name="ATL-COM-DAQ-2018-008-sector14_mu11.eps" path="ATL-COM-DAQ-2018-008-sector14_mu11.eps" size="20423" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu11.pdf" attr="h" comment="To be removed" date="1518981703" name="ATL-COM-DAQ-2018-008-sector14_mu11.pdf" path="ATL-COM-DAQ-2018-008-sector14_mu11.pdf" size="199659" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu11.png" attr="h" comment="To be removed" date="1518981703" name="ATL-COM-DAQ-2018-008-sector14_mu11.png" path="ATL-COM-DAQ-2018-008-sector14_mu11.png" size="19570" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-time_vs_days.eps" attr="h" comment="To be removed" date="1518981703" name="ATL-COM-DAQ-2018-008-time_vs_days.eps" path="ATL-COM-DAQ-2018-008-time_vs_days.eps" size="23742" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-time_vs_days.pdf" attr="h" comment="To be removed" date="1518981703" name="ATL-COM-DAQ-2018-008-time_vs_days.pdf" path="ATL-COM-DAQ-2018-008-time_vs_days.pdf" size="59572" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-time_vs_days.png" attr="h" comment="To be removed" date="1518981703" name="ATL-COM-DAQ-2018-008-time_vs_days.png" path="ATL-COM-DAQ-2018-008-time_vs_days.png" size="12073" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.eps" attr="h" comment="To be removed" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.eps" path="ATL-COM-DAQ-2018-008-turnon.eps" size="15843" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.pdf" attr="h" comment="To be removed" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.pdf" path="ATL-COM-DAQ-2018-008-turnon.pdf" size="61562" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.png" attr="h" comment="To be removed" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.png" path="ATL-COM-DAQ-2018-008-turnon.png" size="23758" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.png" attr="h" comment="To be removed" date="1527475411" name="ATL-COM-DAQ-2018-033-fig1.png" path="ATL-COM-DAQ-2018-033-fig1.png" size="15129" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig2.eps" attr="h" comment="To be removed" date="1527475412" name="ATL-COM-DAQ-2018-033-fig2.eps" path="ATL-COM-DAQ-2018-033-fig2.eps" size="77324" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig2.pdf" attr="h" comment="To be removed" date="1527475412" name="ATL-COM-DAQ-2018-033-fig2.pdf" path="ATL-COM-DAQ-2018-033-fig2.pdf" size="44393" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig2.png" attr="h" comment="To be removed" date="1527475412" name="ATL-COM-DAQ-2018-033-fig2.png" path="ATL-COM-DAQ-2018-033-fig2.png" size="24038" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.eps" attr="h" comment="To be removed" date="1527475412" name="ATL-COM-DAQ-2018-033-fig1.eps" path="ATL-COM-DAQ-2018-033-fig1.eps" size="24631" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.pdf" attr="h" comment="To be removed" date="1527475412" name="ATL-COM-DAQ-2018-033-fig1.pdf" path="ATL-COM-DAQ-2018-033-fig1.pdf" size="17436" user="junpei" version="1"

Revision 322018-11-21 - StefanoVeneziano

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 22 to 22
 
Deleted:
<
<
META FILEATTACHMENT attachment="ATL-COM-DAQ-2012-033-fig9.eps" attr="" comment="" date="1338474019" name="ATL-COM-DAQ-2012-033-fig9.eps" path="ATL-COM-DAQ-2012-033-fig9.eps" size="12599" user="will" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2012-033-fig9.png" attr="" comment="" date="1338474019" name="ATL-COM-DAQ-2012-033-fig9.png" path="ATL-COM-DAQ-2012-033-fig9.png" size="13546" user="will" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2012-033-fig10.eps" attr="" comment="" date="1338474019" name="ATL-COM-DAQ-2012-033-fig10.eps" path="ATL-COM-DAQ-2012-033-fig10.eps" size="13661" user="will" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2012-033-fig10.png" attr="" comment="" date="1338474019" name="ATL-COM-DAQ-2012-033-fig10.png" path="ATL-COM-DAQ-2012-033-fig10.png" size="18224" user="will" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig1.pdf" attr="" comment="" date="1393009667" name="ATL-COM-DAQ-2014-007-fig1.pdf" path="ATL-COM-DAQ-2014-007-fig1.pdf" size="115167" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig1.png" attr="" comment="" date="1393010231" name="ATL-COM-DAQ-2014-007-fig1.png" path="ATL-COM-DAQ-2014-007-fig1.png" size="853986" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig2.pdf" attr="" comment="" date="1393010557" name="ATL-COM-DAQ-2014-007-fig2.pdf" path="ATL-COM-DAQ-2014-007-fig2.pdf" size="118765" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig2.png" attr="" comment="" date="1393010689" name="ATL-COM-DAQ-2014-007-fig2.png" path="ATL-COM-DAQ-2014-007-fig2.png" size="860333" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig3.pdf" attr="" comment="" date="1393010673" name="ATL-COM-DAQ-2014-007-fig3.pdf" path="ATL-COM-DAQ-2014-007-fig3.pdf" size="122953" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig3.png" attr="" comment="" date="1393010670" name="ATL-COM-DAQ-2014-007-fig3.png" path="ATL-COM-DAQ-2014-007-fig3.png" size="888895" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig4.pdf" attr="" comment="" date="1393010657" name="ATL-COM-DAQ-2014-007-fig4.pdf" path="ATL-COM-DAQ-2014-007-fig4.pdf" size="58761" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig4.png" attr="" comment="" date="1393010656" name="ATL-COM-DAQ-2014-007-fig4.png" path="ATL-COM-DAQ-2014-007-fig4.png" size="214920" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig5.pdf" attr="" comment="" date="1393010651" name="ATL-COM-DAQ-2014-007-fig5.pdf" path="ATL-COM-DAQ-2014-007-fig5.pdf" size="76974" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig5.png" attr="" comment="" date="1393010648" name="ATL-COM-DAQ-2014-007-fig5.png" path="ATL-COM-DAQ-2014-007-fig5.png" size="160766" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig6.pdf" attr="" comment="" date="1393010646" name="ATL-COM-DAQ-2014-007-fig6.pdf" path="ATL-COM-DAQ-2014-007-fig6.pdf" size="92694" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig6.png" attr="" comment="" date="1393010645" name="ATL-COM-DAQ-2014-007-fig6.png" path="ATL-COM-DAQ-2014-007-fig6.png" size="205579" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig7.pdf" attr="" comment="" date="1393010641" name="ATL-COM-DAQ-2014-007-fig7.pdf" path="ATL-COM-DAQ-2014-007-fig7.pdf" size="58390" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig7.png" attr="" comment="" date="1393010809" name="ATL-COM-DAQ-2014-007-fig7.png" path="ATL-COM-DAQ-2014-007-fig7.png" size="133583" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig8.pdf" attr="" comment="" date="1393010807" name="ATL-COM-DAQ-2014-007-fig8.pdf" path="ATL-COM-DAQ-2014-007-fig8.pdf" size="75449" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-007-fig8.png" attr="" comment="" date="1393010804" name="ATL-COM-DAQ-2014-007-fig8.png" path="ATL-COM-DAQ-2014-007-fig8.png" size="147390" user="vari" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig1a.eps" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig1a.eps" path="ATL-COM-DAQ-2014-010-fig1a.eps" size="38873" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig1a.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig1a.png" path="ATL-COM-DAQ-2014-010-fig1a.png" size="25706" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig1b.eps" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig1b.eps" path="ATL-COM-DAQ-2014-010-fig1b.eps" size="46190" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig1b.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig1b.png" path="ATL-COM-DAQ-2014-010-fig1b.png" size="26248" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig2.eps" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig2.eps" path="ATL-COM-DAQ-2014-010-fig2.eps" size="17519" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig2.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig2.png" path="ATL-COM-DAQ-2014-010-fig2.png" size="37388" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig3.eps" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig3.eps" path="ATL-COM-DAQ-2014-010-fig3.eps" size="10358" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig3.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig3.png" path="ATL-COM-DAQ-2014-010-fig3.png" size="19670" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig4.eps" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig4.eps" path="ATL-COM-DAQ-2014-010-fig4.eps" size="24975" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig4.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig4.png" path="ATL-COM-DAQ-2014-010-fig4.png" size="28695" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig1a.eps" attr="" comment="" date="1442715639" name="ATL-COM-DAQ-2015-142-fig1a.eps" path="ATL-COM-DAQ-2015-142-fig1a.eps" size="28075" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig1a.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig1a.png" path="ATL-COM-DAQ-2015-142-fig1a.png" size="21961" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig1b.eps" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig1b.eps" path="ATL-COM-DAQ-2015-142-fig1b.eps" size="26557" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig1b.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig1b.png" path="ATL-COM-DAQ-2015-142-fig1b.png" size="21989" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig2.eps" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig2.eps" path="ATL-COM-DAQ-2015-142-fig2.eps" size="11198" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig2.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig2.png" path="ATL-COM-DAQ-2015-142-fig2.png" size="18391" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig3.eps" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig3.eps" path="ATL-COM-DAQ-2015-142-fig3.eps" size="12685" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig3.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig3.png" path="ATL-COM-DAQ-2015-142-fig3.png" size="25039" user="tomoe" version="1"
 
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.pdf" attr="" comment="" date="1447238930" name="mu20tbp_vs_lumi.pdf" path="mu20tbp_vs_lumi.pdf" size="222389" user="strom" version="1"
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.png" attr="" comment="" date="1447238930" name="mu20tbp_vs_lumi.png" path="mu20tbp_vs_lumi.png" size="142406" user="strom" version="1"
Deleted:
<
<
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig1.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig1.pdf" path="ATL-COM-DAQ-2015-201-fig1.pdf" size="27078" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig2.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig2.pdf" path="ATL-COM-DAQ-2015-201-fig2.pdf" size="19343" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig3.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig3.pdf" path="ATL-COM-DAQ-2015-201-fig3.pdf" size="18370" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig4.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig4.pdf" path="ATL-COM-DAQ-2015-201-fig4.pdf" size="18764" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig5.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig5.pdf" path="ATL-COM-DAQ-2015-201-fig5.pdf" size="15192" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig6.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig6.pdf" path="ATL-COM-DAQ-2015-201-fig6.pdf" size="15273" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig1.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig1.png" path="ATL-COM-DAQ-2015-201-fig1.png" size="41113" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig2.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig2.png" path="ATL-COM-DAQ-2015-201-fig2.png" size="31202" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig3.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig3.png" path="ATL-COM-DAQ-2015-201-fig3.png" size="30426" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig4.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig4.png" path="ATL-COM-DAQ-2015-201-fig4.png" size="31294" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig5.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig5.png" path="ATL-COM-DAQ-2015-201-fig5.png" size="45616" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig6.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig6.png" path="ATL-COM-DAQ-2015-201-fig6.png" size="47459" user="masato" version="1"
 
META FILEATTACHMENT attachment="fig_01.pdf" attr="" comment="" date="1455900633" name="fig_01.pdf" path="fig_01.pdf" size="39152" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_01.png" attr="" comment="" date="1455900633" name="fig_01.png" path="fig_01.png" size="31891" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_02.pdf" attr="" comment="" date="1455900942" name="fig_02.pdf" path="fig_02.pdf" size="40585" user="dellasta" version="1"
Line: 100 to 50
 
META FILEATTACHMENT attachment="fig_12.png" attr="" comment="" date="1455901018" name="fig_12.png" path="fig_12.png" size="19745" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.pdf" attr="" comment="" date="1455901018" name="fig_13.pdf" path="fig_13.pdf" size="14870" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.png" attr="" comment="" date="1455901018" name="fig_13.png" path="fig_13.png" size="12938" user="dellasta" version="1"
Deleted:
<
<
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig1.pdf" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig1.pdf" path="ATL-COM-DAQ-2015-205-fig1.pdf" size="35536" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig1.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig1.png" path="ATL-COM-DAQ-2015-205-fig1.png" size="289311" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig2.pdf" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig2.pdf" path="ATL-COM-DAQ-2015-205-fig2.pdf" size="30886" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig2.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig2.png" path="ATL-COM-DAQ-2015-205-fig2.png" size="281038" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig3.pdf" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig3.pdf" path="ATL-COM-DAQ-2015-205-fig3.pdf" size="34916" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig3.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig3.png" path="ATL-COM-DAQ-2015-205-fig3.png" size="501343" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig4.pdf" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig4.pdf" path="ATL-COM-DAQ-2015-205-fig4.pdf" size="30154" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig4.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig4.png" path="ATL-COM-DAQ-2015-205-fig4.png" size="314590" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig5.pdf" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig5.pdf" path="ATL-COM-DAQ-2015-205-fig5.pdf" size="29875" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig5.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig5.png" path="ATL-COM-DAQ-2015-205-fig5.png" size="277669" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig6.pdf" attr="" comment="" date="1481568019" name="ATL-COM-DAQ-2015-205-fig6.pdf" path="ATL-COM-DAQ-2015-205-fig6.pdf" size="29112" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig6.png" attr="" comment="" date="1481568019" name="ATL-COM-DAQ-2015-205-fig6.png" path="ATL-COM-DAQ-2015-205-fig6.png" size="314008" user="mishino" version="1"
 
META FILEATTACHMENT attachment="atl-com-daq-2015-205.tar.gz" attr="" comment="" date="1481643093" name="atl-com-daq-2015-205.tar.gz" path="atl-com-daq-2015-205.tar.gz" size="1110112" user="mishino" version="1"
Deleted:
<
<
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1a.eps" attr="" comment="" date="1494155576" name="ATL-COM-DAQ-2017-022-fig1a.eps" path="ATL-COM-DAQ-2017-022-fig1a.eps" size="19881" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1a.pdf" attr="" comment="" date="1494155576" name="ATL-COM-DAQ-2017-022-fig1a.pdf" path="ATL-COM-DAQ-2017-022-fig1a.pdf" size="16336" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1a.png" attr="" comment="" date="1494155576" name="ATL-COM-DAQ-2017-022-fig1a.png" path="ATL-COM-DAQ-2017-022-fig1a.png" size="18470" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1b.eps" attr="" comment="" date="1494155576" name="ATL-COM-DAQ-2017-022-fig1b.eps" path="ATL-COM-DAQ-2017-022-fig1b.eps" size="17293" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1b.pdf" attr="" comment="" date="1494155576" name="ATL-COM-DAQ-2017-022-fig1b.pdf" path="ATL-COM-DAQ-2017-022-fig1b.pdf" size="15822" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1b.png" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig1b.png" path="ATL-COM-DAQ-2017-022-fig1b.png" size="17927" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig2.eps" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig2.eps" path="ATL-COM-DAQ-2017-022-fig2.eps" size="13657" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig2.pdf" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig2.pdf" path="ATL-COM-DAQ-2017-022-fig2.pdf" size="16825" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig2.png" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig2.png" path="ATL-COM-DAQ-2017-022-fig2.png" size="21216" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig3.eps" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig3.eps" path="ATL-COM-DAQ-2017-022-fig3.eps" size="17248" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig3.pdf" attr="" comment="" date="1494155634" name="ATL-COM-DAQ-2017-022-fig3.pdf" path="ATL-COM-DAQ-2017-022-fig3.pdf" size="17375" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig3.png" attr="" comment="" date="1494155634" name="ATL-COM-DAQ-2017-022-fig3.png" path="ATL-COM-DAQ-2017-022-fig3.png" size="26900" user="junpei" version="1"
 
META FILEATTACHMENT attachment="eff_th3_allsec.eps" attr="" comment="" date="1495536527" name="eff_th3_allsec.eps" path="eff_th3_allsec.eps" size="14530" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.pdf" attr="" comment="" date="1495536527" name="eff_th3_allsec.pdf" path="eff_th3_allsec.pdf" size="14747" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.png" attr="" comment="" date="1495536527" name="eff_th3_allsec.png" path="eff_th3_allsec.png" size="53953" user="dellasta" version="1"
Line: 155 to 81
 
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.eps" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.eps" path="LHCC_Sep2017_turn_on_2017.eps" size="15521" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.pdf" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.pdf" path="LHCC_Sep2017_turn_on_2017.pdf" size="17765" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.png" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.png" path="LHCC_Sep2017_turn_on_2017.png" size="19025" user="dellasta" version="1"
Deleted:
<
<
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-1.eps" attr="" comment="" date="1505482106" name="ATL-COM-DAQ-2017-112-1.eps" path="ATL-COM-DAQ-2017-112-1.eps" size="18628" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-1.pdf" attr="" comment="" date="1505482109" name="ATL-COM-DAQ-2017-112-1.pdf" path="ATL-COM-DAQ-2017-112-1.pdf" size="18828" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-1.png" attr="" comment="" date="1505482110" name="ATL-COM-DAQ-2017-112-1.png" path="ATL-COM-DAQ-2017-112-1.png" size="22331" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-2.eps" attr="" comment="" date="1505482112" name="ATL-COM-DAQ-2017-112-2.eps" path="ATL-COM-DAQ-2017-112-2.eps" size="13137" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-2.pdf" attr="" comment="" date="1505482113" name="ATL-COM-DAQ-2017-112-2.pdf" path="ATL-COM-DAQ-2017-112-2.pdf" size="18222" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-2.png" attr="" comment="" date="1505482114" name="ATL-COM-DAQ-2017-112-2.png" path="ATL-COM-DAQ-2017-112-2.png" size="21191" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.eps" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.eps" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.eps" size="9721" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.pdf" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.pdf" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.pdf" size="45390" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.png" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.png" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.png" size="7833" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.eps" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.eps" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.eps" size="9704" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.pdf" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.pdf" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.pdf" size="45370" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.png" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.png" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.png" size="7795" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-BCtiming.eps" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-BCtiming.eps" path="ATL-COM-DAQ-2018-008-BCtiming.eps" size="20488" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-BCtiming.pdf" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-BCtiming.pdf" path="ATL-COM-DAQ-2018-008-BCtiming.pdf" size="344486" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-BCtiming.png" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-BCtiming.png" path="ATL-COM-DAQ-2018-008-BCtiming.png" size="28860" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.eps" attr="" comment="" date="1518981642" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.eps" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.eps" size="41007" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.pdf" attr="" comment="" date="1518981643" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.pdf" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.pdf" size="477959" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.png" attr="" comment="" date="1518981643" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.png" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.png" size="32831" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.eps" attr="" comment="" date="1518981643" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.eps" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.eps" size="42948" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.pdf" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.pdf" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.pdf" size="476507" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.png" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.png" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.png" size="35283" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-plateaueff_vs_days.eps" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-plateaueff_vs_days.eps" path="ATL-COM-DAQ-2018-008-plateaueff_vs_days.eps" size="23873" user="stelzer" version="1"
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" path="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" size="56524" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" path="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" size="28505" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu10.eps" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu10.eps" path="ATL-COM-DAQ-2018-008-sector12_mu10.eps" size="20451" user="stelzer" version="1"

Revision 312018-11-19 - StefanoVeneziano

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Changed:
<
<

L1 Muon Trigger Public Results

>
>

L1 Muon Hardware Public Results

 

Introduction

Changed:
<
<
Approved plots that can be shown by ATLAS speakers at conferences and similar events. Please do not add figures on your own. Contact the responsible project leader in case of questions and/or suggestions. Follow the guidelines on the trigger public results page.

Performance plots for Phase-I upgrades

Performance estimation of the Level-1 Endcap muon trigger at Run 2 and Run 3: ATL-COM-DAQ-2018-033 (27 May 2018)

The pseudo-rapidity (η) distributions of the Level-1 MU20 RoI. The L1 MU20 candidates in Run 2 are collected by pass-through triggers (HLT_noalg_L1MU20), in 2017 data with a center-ofmass energy of 13 TeV and a bunch-crossing interval of 25 ns. The distribution when enabling TileCal-TGC coincidence is estimated from 2017 data. The expected distribution in Run 2 shows the final distribution at the end of Run 2 after enabling TileCal coincidence. Matching between the offline muon and the L1 MU20 RoI requires dR < 0.1, where dR is calculated from dη, dφ between the offline muon position extrapolated to RoI plane and the central position of the RoI. .png
png pdf eps
contact: Shunichi Akatsuka, Yuta Okazaki, & Junpei Maeda
The pseudo-rapidity (η) distributions of the Level-1 MU20 RoI. The L1 MU20 candidates in Run 2 are collected by pass-through triggers (HLT_noalg_L1MU20), in 2017 data with a center-ofmass energy of 13 TeV and a bunch-crossing interval of 25 ns. The distribution when enabling TileCal-TGC coincidence is estimated from 2017 data. The distributions when enabling RPC BIS7/8 and NSW coincidence are estimated from MDT segments information and single muon MC study results. The expected distribution in Run 3 shows the final distribution in Run 3 after enabling all TileCal, RPC BIS7/8, and NSW coincidences. Matching between the offline muon and the L1 MU20 RoI requires dR < 0.1, where dR is calculated from dη, dφ between the offline muon position extrapolated to RoI plane and the central position of the RoI. .png
png pdf eps
contact: Shunichi Akatsuka, Yuta Okazaki & Junpei Maeda

Performance estimation of the Level-1 Endcap muon trigger by using NSW angle information: ATL-COM-DAQ-2017-022 (May 6, 2017)

Distributions of difference in η between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and the track segment position in the New Small Wheel (NSW), and dθ measured at NSW. dθ is defined as dθ = θposition - θtrack, where θposition is the polar angle calculated from the position of the track segment, and θtrack is the polar angle of the track vector. The distributions are obtained by simulation with muon pT = 20 GeV (left), 40 GeV (right). Two peaks are observed in the left figure (pT= 20 GeV) due to the different charges of the muons. In the right figure (pT = 40 GeV), because the pT of the muons are higher, the split of the two peaks are smaller, and therefore they are not resolved.
.png
png pdf eps
.png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda
Relative trigger efficiencies compared to Run-2 Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. The Run-2 L1_MU20 requires position matching of TGC Big Wheel (BW) and the TGC Forward-Inner chamber (FI) at 1.3 < |ηRoI| < 2.4. The efficiencies are measured with offline reconstructed muons, and are shown as a function of the transverse momentum of the muons. Efficiencies with additional coincidence requirements applied to the L1_MU20 are shown by coloured points. The open circle points show the efficiency with New Small Wheel (NSW) coincidence logic using dη-dθ coincidence window, described in ATL-COM-DAQ-2015-142. The open triangle points show the efficiency with NSW coincidence logic using both dη-dφ and dη-dθ coincidence window derived from the simulation study. The track segment finding efficiency in the NSW is assumed to be 97%. .png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda
pT distributions of offline reconstructed muons matched to a Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. Matching between the offline muon and the L1_MU20 RoI requires dR < 0.5, where dR is calculated from η, φ of the offline muon at I.P. and the central position of the L1_MU20 RoI. The distribution of Run-2 L1_MU20 candidates, generated by the TGC Big Wheel (BW) and TGC Forward-Inner chamber (FI), are collected by pass-through triggers (HLT_noalg_L1MU20), in 2016 data with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including each New Small Wheel (NSW) coincidence logics are estimated by multiplying the relative trigger efficiencies measured by simulation. .png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda

Performance estimation of Level1 endcap muon trigger for Run3: ATL-COM-DAQ-2015-142 (September 20, 2015)

Distributions of position differences between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and track segments in the New Small Wheel (NSW). The distributions are obtained by simulations with muon pT = 20 GeV (top), 40 GeV (bottom). Two peaks are observed in the distribution with muon pT = 20 GeV since the position differences depend on muon’s charge. Criteria of the position matching between the BW-RoI and NSW-track for the Level-1 endcap muon trigger for Run3 are defined from these distributions. .png
png eps
.png
png eps
contact: Tomoe Kishimoto
L1_MU20 trigger efficiencies when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) with respect to the trigger efficiency of the TGC Big Wheel (BW) standalone. The track segment finding efficiency in the NSW is assumed to be 97%. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The trigger efficiencies are measured with offline reconstructed muons with 1.3 < |eta| < 2.5, and shown as a function of the transverse momentum of the muons. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
pT distributions of offline reconstructed muons with 1.3 < |eta| < 2.5 matched to a L1_MU20 candidate. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The distribution with L1_MU20 candidates generated by the TGC Big Wheel (BW) standalone are obtained from a data sample collected by pass-through triggers (HLT_noalg_L1MU20) in run276329, which was taken on 16-17 Aug. 2015 with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) are estimated by multiplying the relative trigger efficiencies measured by simulations. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto

2017 data

Performance plots for Level1 Barrel Muon Trigger: ATL-COM-DAQ-2018-008 (Feb 16, 2018)

L1_MU10 efficiency gain from new new feet trigger chambers in sector 12
Efficiency of Level 1 MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the Level 1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon Level 1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.
ATL-COM-DAQ-2018-008-sector12_mu10.png
png pdf eps
L1_MU11 efficiency gain from new new feet trigger chambers in sector 12
Efficiency of Level 1 MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT Level 1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon Level 1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.

png pdf eps
L1_MU10 efficiency gain from new new feet trigger chambers in sector 14
Efficiency of Level 1 MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the Level 1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon Level 1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.

png pdf eps
L1_MU11 efficiency gain from new new feet trigger chambers in sector 14
Efficiency of Level 1 MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT Level 1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon Level 1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.

png pdf eps
L1_MU10 efficiency in 2016 and 2017
Efficiency of Level 1 MU10 trigger in 2017 and comparison with 2016 trigger efficiency. The efficiency is plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing.

png pdf eps
L1_MU11 efficiency in 2016 and 2017
Efficiency of Level 1 MU11 trigger in 2017 and comparison with 2016 trigger efficiency. The efficiency is plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing.

png pdf eps
L1_MU10 efficiency 2017 / 2016 ratio
η-φ map of the ratio between the Level 1 Barrel muon trigger efficiency in 2017 and 2016 for the trigger threshold MU10. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The blank bins correspond to regions of the Muon Spectrometer not covered by RPC trigger detectors.

png pdf eps
L1_MU11 efficiency 2017 / 2016 ratio
η-φ map of the ratio between the Level 1 Barrel muon trigger efficiency in 2017 and 2016 for the trigger threshold MU11. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT Level 1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The blank bins correspond to regions of the Muon Spectrometer not covered by RPC trigger detectors.

png pdf eps
Turn-on curves for all L1 thresholds
Level 1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η| < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4, MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11, MU20, MU21 with a further coincidence on the outer RPC stations. The MU20 threshold takes into account the full muon barrel region, while for the otherwise identical MU21 the new feet trigger is excluded. For this reason, the trigger efficiency is higher for MU20. The efficiency is measured using events selected by independent triggers and requiring an offline reconstructed muon.

png pdf eps
Plateau efficiencies for all L1 thresholds
Plateau value of the Level 1 muon barrel trigger efficiency (as a function of muon pT) for reconstructed muons with pT > 15 GeV and |η| < 1.05 as a function of time. Each point corresponds to a different ATLAS run recorded in 2017. Only runs with integrated luminosity greater than 50 pb-1 and at least 1000 reconstructed muons have been used. The efficiency is shown for the six Level-1 thresholds: MU4, MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11, MU20, MU21 with a further coincidence on the outer RPC stations. The MU20 threshold takes into account the full muon barrel region, while for the otherwise identical MU21 the new feet trigger is excluded. For this reason, the trigger efficiency is higher for MU20. The efficiency is measured using events selected by independent triggers and requiring an offline reconstructed muon.

png pdf eps
BC Timing for each trigger tower
Fraction of the RPC High-pT trigger hits associated correctly to the collision Bunch Crossing for each Level 1 Barrel Muon trigger tower. The data is from a the pp runs at √s = 13 TeV with an integrated luminosity L=0.58 fb-1. The trigger sectors have a different number of towers: the small sectors have 6 trigger towers, the large sectors have 7 and the feet sectors have 8. The blank bin in sector 11 corresponds to a trigger tower masked in this specific run.

png pdf eps
BC timing fluctuations during 2017
Fraction of RPC High-pT trigger hits associated correctly to the collision Bunch Crossing for the whole RPC trigger system as a function of time. Each point corresponds to a different ATLAS run recorded in 2017. Only runs with integrated luminosity greater than 50 pb-1 have been used. In the period above day 100, corresponding to September-October 2017, two structures are observed, with the lower one with a BC fraction around 99.4%. This lower fraction with respect to the standard one of about 99.6% is due to some problems in the trigger hardware that led to a removal of part of the RPC readout (1 readout module out of 32 in total) from the data acquisition for a small period in those particular runs.

png pdf eps

Level-1 endcap muon trigger performance in 2016 and 2017: ATL-COM-DAQ-2017-112 (Sep 13, 2017)

Level-1 muon trigger efficiency at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Efficiency of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the offline muon transverse momentum. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. The efficiency is estimated by tag-and-probe method using Z→μμ events. In 2017, look-up-table in the endcap region have been optimized using 2016 data.
.png
png pdf eps
Level-1 muon trigger rate at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Trigger rate of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the instantaneous luminosity. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. In 2017, the overlap region at the barrel feet region and look-up table in the endcap region have been optimized using 2016 data.
.png
png pdf eps

Performance plots for Level1 Barrel Muon Trigger: ATL-COM-DAQ-2017-113 (Sep 13, 2017)

Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
png pdf eps
Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
png pdf eps
Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
png pdf eps
Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
png pdf eps
L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η | < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4, MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11, MU20, MU21 with a further coincidence on the outer RPC stations. MU21 threshold is equal to MU20 everywhere but in the “feet” region, where the new feet trigger does not have this threshold. The efficiency is measured using events selected by independent triggers. .png
png pdf eps

2016 data

Performance plots for Level1 Barrel Muon Trigger ATL-COM-DAQ-2017-035 (May 23, 2017)

Efficiency of Level 1 (L1) MU10 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically ~0.1%. The plot shows the general stability of the system with data taking and that in some areas the efficiency has increased thanks to fixing inefficient RPC chambers in the winter shutdown between 2015 and 2016. In particular, it shows the drastic efficiency increase (about 20% absolute) in the regions of the detector support structure feet, where new trigger RPC chambers were installed and commissioned by the end of 2015. The MC simulation was tuned with real RPC strip efficiencies measured on 2015 data and is overlaid to show the expectation of 2016 detector conditions. The MC efficiency of totally inefficient strips was set to 50% to be able to rescale if a given element should be repaired in the future. .png
png eps
Efficiency of Level 1 (L1) MU11 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU11 trigger requires that a candidate passed the 11 GeV threshold requirement of the L1 muon trigger system (using both medium and outer trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically ~0.1%. The plot shows the general stability of the system with data taking and that in some areas the efficiency has increased thanks to fixing inefficient RPC chambers in the winter shutdown between 2015 and 2016. In particular, it shows the drastic efficiency increase (about 20% absolute) in the regions of the detector support structure feet, where new trigger RPC chambers were installed and commissioned by the end of 2015. The MC simulation was tuned with real RPC strip efficiencies measured on 2015 data and is overlaid to show the expectation of 2016 detector conditions. The MC efficiency of totally inefficient strips was set to 50% to be able to rescale if a given element should be repaired in the future. .png
png eps
Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. It is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the drastic efficiency increase (about 20% absolute) introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the regions of the detector supporting structure feet. .png
png eps
Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.96 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
png eps
Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.17 < φ(mu at the interaction vertex) < -0.97) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector support structure feet are placed. .png
png eps

2015 data @ 13 TeV

Level 1 Barrel Muon trigger and RPC performance in 2015

RPC trigger coverage
Distribution RPC trigger hits in the pivot layer associated with an high-pT trigger, shown in terms of the η and φ strip coordinates. The black lines indicate the contours of individual RPC chambers. The data set corresponds to pp collisions collected with 25 ns spacing between colliding bunches.
.pdf
png pdf
RPC trigger coverage (in terms of strip index)
Distribution RPC trigger hits in the pivot layer associated with an high-pT trigger shown in term of the strip index of η and φ strips. The black lines indicate the contour of individual RPC chambers.
.pdf
png pdf
RPC efficiency
Distribution of the measured RPC "gap efficiency" of each gas volume, defined by the presence of hits on at least one of the two strip panels (η and φ), and of the "detector efficiency" for each strip panel, defined by the presence of hits in the strip panel. The total number of panels (η + φ) is 8592, the number of gaps is 4296. The efficiency is measured using standalone RPC tracks obtained removing the hits on the unit under test. Trigger biases are removed requiring that the remaining hits satisfy the trigger coincidence.
.pdf
png pdf
RPC dead strips
Distribution of the fraction of dead strips per readout panel for both views. Dead strips can originate from different reasons, e.g. readout problems, masking of noisy channels or gas gaps disconnected from HV. The peak at 1 shows that the fraction of readout panels in which all strips are dead is approximately 2%.
.pdf
png pdf
RPC cluster size
Distribution of RPC cluster size as measured in readout hits for the η and φ strips.
.pdf
png pdf
Average RPC cluster size per panel
Distribution of average RPC cluster size for each readout panel for both the η and φ views.
.pdf
png pdf
L1 Barrel Trigger Bunch Crossing identification
Difference between the event bunch crossing (BC) number identified by the Level-1 Muon Barrel trigger and the collision bunch crossing number, for muons passing reconstructed offline with pT > 15 GeV and passing the corresponding Level-1 threshold MU15. The collision bunch crossing is identified using independent triggers. The plot shows that 99.7% of the L1 barrel events have been tagged with the correct BC number. Data from a single pp collision run at √s = 13 TeV ( Oct 31/Nov 1, LHC fill 4560).
.pdf
png pdf
L1 Barrel Trigger timing
RPC hit time distribution for trigger hits, measured from readout data (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing (BC). One time unit on the horizontal axis is 1/8 of a BC (3.125 ns). The horizontal axis covers the readout window in which data are collected that corresponds to 8 BCs. The plot shows that the RPC trigger hit distribution is within the collision BC, and has a sigma equal to 0.94 ticks (= 2.9 ns).
.pdf
png pdf
L1 Barrel Trigger timing per tower
Fraction of RPC trigger hits associated correctly to the collision Bunch Crossing for each of the 428 Barrel Muon trigger towers. The red contours show the new trigger towers of the “feet”-chamber upgrade that have been activated at the end of 2015 data taking and have not been yet fully commissioned. One tower with hardware problems (Tower=2, Sector=38) is visible as an orange area. The two white areas (Tower=3, Sector=23, 24, 55, 56) correspond to the “elevator” chambers, not yet commissioned in 2015. Data from pp runs at √s = 5 TeV, integrated luminosity L=28 pb-1.
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\eta$
L1 muon barrel trigger efficiency for reconstructed muons with $p_T>15$ GeV as a function of η. The efficiency is shown for two thresholds: MU10 (pT > 10 GeV, selected with a coincidence of the two inner RPC stations) and MU11 (pT > 10 GeV selected with a further coincidence with the outer RPC stations). The dashed histograms show the results from a special MC simulation which includes measured efficiencies of the RPC chambers. The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures. The efficiency was measured using events selected by independent triggers.
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\phi$
L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV as a function of φ. The efficiency is shown for two thresholds: MU10 (pT > 10 GeV, selected with a coincidence of the two inner RPC stations) and MU11 (pT > 10 GeV selected with a further coincidence with the outer RPC stations). The dashed histograms show the results from a special MC simulation which includes measured efficiencies of the RPC chambers. The regions with lower efficiency around φ = -2 and φ = -1 correspond to the “feet” structures that support the ATLAS calorimeters, in which the muon chamber coverage is reduced. The efficiency was measured using events selected by independent triggers.
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of pT
L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η| < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4,MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11,MU15,MU20 with a further coincidence on the outer RPC stations. The fitted plateau efficiency for MU10 and MU11 is also shown. The efficiency was measured using events selected by independent triggers.
.pdf
png pdf
RPC efficiency with the Z “tag and probe” method
The plot shows the distribution of the measured RPC detector efficiencies defined by the positive response of the η strips (similar to Figure 3) measured using reconstructed muons from Z → μ μ decays with the “tag-and-probe method”.
.pdf
png pdf

Performance of Level1 Endcap FI coincidence in Run2:

(top) Efficiency of Level1(L1) muon trigger with the pT threshold of 15 GeV (L1_MU15) in the region 1.3 < |η| <1.9, as a function of φ. It is computed with respect to offline muon candidates which are reconstructed using standardATLAS software and are categorized as “combined” muons with tracks in InnerDetector and MuonSpectrometer. It is measured in the Tag-and-Probe method using the Z→μμ candidate events in runs of 13 TeV data taking with 25ns LHC bunch spacing, applying 15 GeV threshold to the offline muons used as probe. Blue and red points show the efficiency [without] and [with] the FI coincidence enabled, respectively. The values “with FI coincidence” are calculated with requiring coincidence flags in the FI chambers. (bottom) Ratio of the efficiency values in the top plot: [with FI] / [without FI]. The values ( ~98% ) shows the efficiency in the same pseudo-rapidity region 1.3 < |η| < 1.9 as in the top plot, which is negligible in the total eta region. .pdf
png pdf
contact: Toshi Sumida
(top) Efficiency of L1_MU15 trigger in the endcap region, as a function of pT of offline muons. It is measured in the Tag-and-Prove method using Z→μμ events. Blue and red points show the efficiency without and with the FI coincidence enabled, respectively. (bottom) Ratio of the absolute trigger efficiency values in the top plot: [with FI] / [without FI], which shows the additional efficiency of the FI coincidence. .pdf
png pdf
contact: Toshi Sumida
(top) η distributions of Region of Interest (RoI) from the L1_MU15 trigger. The number of the entries are normalized with the integrated luminosities in the runs with and without the FI coincidence enabled. (bottom) Reduction on the trigger rate of L1_MU15, calculated in (1-N[with FI]/N[without FI], N: number of entry in each bin). The rate reductions in the regions with no FI chambers are consistent with 0 within the errors, which are computed in the statistics only. The binning for those regions are merged to reduce the visual effect from the statistical fluctuation. .pdf
png pdf
contact: Toshi Sumida
(top) η distributions of Region of Interest (RoI) from the L1 muon trigger with the pT threshold of 20 GeV (L1_MU20). The number of the entries are normalized with the integrated luminosities in the runs with and without the FI coincidence enabled. (bottom) Reduction on the trigger rate of L1_MU20, calculated in (1-N[with FI]/N[without FI], N: number of entry in each bin). The rate reductions in the regions with no FI chambers are consistent with 0 in the errors, which are computed in the statistics only. The binning for those regions are merged to reduce the visual effect from the statistical fluctuation. .pdf
png pdf
contact: Toshi Sumida
Trigger rates of the L1_MU15 in the runs with and without the FI coincidence enabled, as functions of the instantaneous luminosity of LHC. The reduction computed from the slope of the linear fitting is 15%. .pdf
png pdf
contact: Toshi Sumida
Trigger rates of the L1_MU20 in the runs with and without the FI coincidence enabled, as functions of the instantaneous luminosity of LHC. The reduction computed from the slope of the linear fitting is 21%. .pdf
png pdf
contact: Toshi Sumida

Trigger rates for muon trigger for Run2: (September 23, 2015)

The Level 1 rate for the single muon trigger with a pT threshold of 20 GeV versus instantaneous luminosity. The black (red)  points correspond to data recorded with (without) a coincidence between the FI (Forward-Inner) muon layers with the big-wheel of the muon spectrometer. This coincidence removes collision background from secondary interactions in the ATLAS Endcap toroid which produces particles that only traverse the big wheel. These background signals arrive at the big-wheel layer with a delay of approximately 25ns and therefore did not contribute significantly to the muon trigger rate during the 50ns running in Run-1 and Run-2.  The rate reduction due the coincidence is approximately 25%.

.pdf
png pdf
contact: Philipp Fleischmann

L1Muon Trigger : 2011-2012

The expected eta-distributions of the LVL1 muon trigger in Run-2: ATL-COM-DAQ-2015-205 (Dec. 2016)

The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.

The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.

The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon. The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a transverse momentum of more than 20 GeV.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

.png
png pdf

contact: Masaya Ishino
.png
png pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.

The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.

The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a transverse momentum of more than 20 GeV.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

.png
png pdf

contact: Masaya Ishino
.png
png pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.

The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.

The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

.png
png pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.

The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

.png
png pdf

contact: Masaya Ishino

Performance of the ATLAS Level-1 Trigger: ATL-COM-DAQ-2012-033 (May 02, 2012)

η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU10 trigger, measured in a run from 2011 and a run from 2012. Distributions are individually normalized to unit area. The large fraction at approximately η=1 is due to gamma rays from the beam penetrating through a narrow unshielded region between the barrel and endcap regions of the experiment. Additional shielding was installed in this region between 2011 and 2012 running. L1_MU10 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in the TGC and two-stations in the RPC regions of the L1Muon trigger chambers. .png
png eps
contact: Will Buttinger
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU11 trigger, with the distribution of the subset of RoIs matched (ΔR<0.2) to an offline reconstructed muon (with a combined inner detector and muon spectrometer track and additional interaction-point parameter cuts to exclude cosmic muons, and pT at least 3 GeV), and offline reconstructed muons with a pT greater than 10 GeV. L1_MU11 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in all regions of the L1Muon trigger chambers. .png
png eps
contact: Will Buttinger

L1 Barrel Muon Trigger Efficiency 2012

L1 Barrel Muon Trigger Efficiency with 2012 Data: ATL-COM-DAQ-2014-007 (February 21, 2014)

L1 muon barrel trigger efficiency vs. ϕ
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of ϕ, and its comparison with MC data.
The plot shows a lower trigger efficiency in the feet region (around ϕ = -1 and ϕ = -2) where the detector coverage is lower due to the ATLAS mechanical supports. The trigger efficiency is also lower in the small sectors than in the large ones, because of the toroid mechanical structures again affecting the detector coverage.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent triggers based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of η, and its comparison with MC data.
The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon trigger efficiency for the barrel (1.05 < η < 1.05, within the red dotted lines) and end-cap regions, as a function of η, and its comparison to MC data. The barrel low-pT MU10 threshold selects muons with pT > 10 GeV with a coincidence of the two inner RPC stations, while the high-pT MU11 threshold selects muons with pT > 10 GeV with a further coincidence the third outer RPC station. The end-cap MU10 and MU11 thresholds select muons with pT > 10 GeV with a coincidence of three TGC stations.
The plot shows a lower trigger efficiency than the end-cap in some barrel regions, because of the reduced RPC detector coverage where the barrel toroid mechanical structures and the ATLAS feet supports are.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger turn on curves
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency as a function of pT, for the six trigger thresholds.
MU4, MU6, MU10 are the low-pT thresholds (muons selected with the two inner RPC stations), while MU11, MU15, MU20 are the high-pT thresholds (low-pT muons confirmed with the third outer RPC station).
The lower trigger efficiency for the three high-pT thresholds is due to the reduced RPC detector coverage in the outer planes, due to the ATLAS feet support structure.
The efficiency is measured with offline reconstructed combined muons and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations), as a function of η and ϕ.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel and end-cap trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations in the barrel region, and three TGC stations in the end-cap region), as a function of eta and phi.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger Bunch Crossing number distribution for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations).
The plot shows that 99.64% of the L1 barrel events have been tagged with the correct Bunch Crossing number.
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel readout Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
RPC timing distribution for trigger hits measured from readout data as a function of time (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing.
One time unit on the X-axis is 1/8 of a BC (3.125 ns).
The plot shows that the RPC barrel hit distribution is within the collision Bunch Crossing, and has a sigma equal to 0.9 ticks (= 2.83 ns).
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari

Performance Estimation for Phase-II Level-0/1 Muon Trigger: ATL-COM-DAQ-2014-010 (March 07, 2014)

Distributions of the Run 1 Level-1 muon candidates matched with the tracks reconstructed by a full offline analysis as a function of the inverse of the offline transverse momentum 1/pT and the magnitude of the polar-angle difference |β| of the segments measured by the precision tracking chambers between the outer (middle) and middle (inner) stations in the barrel (endcap). This is the study of the expected Phase-II upgrade performance of a cut on |β| made with a Level-0/1 MDT based muon trigger. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. The events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The candidates are selected by the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter, and a spot mask proposed for the Phase-I or Phase-II upgrade, in the transition region of the barrel and endcap toroidal magnets. .png
png eps
.png
png eps
contact: Yasuyuki Horii
Distribution of the Run 1 Level-1 muon candidate's transverse momentum pT for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The distributions are overlaid. .png
png eps
contact: Yasuyuki Horii
The efficiency of selecting the muon candidates matched with the tracks reconstructed by a full offline analysis for a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade (red dots with error bars) and for a requirement based on the MDT chambers proposed for the Phase-II upgrade (blue open circles with error bars) depending on the offline transverse momentum pT. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The values are relative to an expected condition after the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter. .png
png eps
contact: Yasuyuki Horii
Distribution of the Run 1 Level-1 muon candidate's pseudorapidity ηL1 for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The green (shaded) distribution is obtained by further applying a requirement on the transverse momentum pT reconstructed in a full offline analysis to satisfy pT > 20 GeV. The distributions are overlaid. .png
png eps
contact: Yasuyuki Horii


2010 data @ 7 TeV

RPC timing

L1 RPC trigger timing

Distribution of the trigger time difference of the L1 RPC trigger in units of bunch crossings (BC) with respect to the minimum bias L1 trigger for collision events containing an offline muon with | eta | <1.05, reconstructed using the muon spectrometer and inner detector data. The L1 RoI to offline matching criteria is DR<0.5. The timing window has been temporarily stretched to accept muon triggers in BC={-2,-1,0} to ensure sufficient statistics for the timing calibration with data. Shown is the calibration obtained with cosmic radiation (black) and the first calibration obtained with collision data (red).


jpg pdf
L1 RPC low-pt trigger timing
Bunch-Crossing (BC) distribution of the RPC low-pt trigger, from any trigger sector, with respect to the L1A BC trigger before and after a calibration with pp data. The blue dotted line represent the BC distribution obtained after calibration with cosmic data.

png eps
L1 RPC high-pt trigger timing
Bunch-Crossing (BC) distribution of the RPC high-pt trigger, from any trigger sector, with respect to the RPC low-pt trigger before and after calibration with pp data.

png eps

TGC phase scan

TGC Clock Phase Scan
The plot shows the fraction of the TGC hits in the bunch crossing before the colliding bunch as a function of the clock phase shift of the TGC, from which the optimal delay time for the opening gate can be determined. The numerator is the TGC hits in BC={-1}, the denominator is the sum of the TGC hits in BC={-1,0,1} relative to the colliding bunch. A transverse momentum of offline combined muon of greater 5 GeV/c is required. The optimal timing is between -1 nsec and -2 nsec. An adjustment in the TGC timing of -4 nsec is chosen to have a sufficient margin to cover the fluctuation of fiber length between LHC and ATLAS by the variation in temperature.

jpg pdf

RPC and TGC rates

Result of a clock fine delay scan between the Muon-to-CTP-Interface (MUCTPI) and the sector logic modules of the muon trigger detectors (RPC and TGC).

The test indirectly measures the relative phase between the incoming muon trigger sector data and the MUCTPI clock. This phase relationship needs to be known in order to safely strobe the incoming data without any errors. The result shows that with the current operating point (MUCTPI clock fine delay setting of 3ns), the signals are strobed correctly with no errors and with timing margins of more than +/- 5ns for all 208 sectors.

Test procedure: the phase of the MUCTPI clock that strobes the incoming muon sector data is shifted by 0.5ns steps over the full 25ns range, while the sector logic modules are sending a known repetitive test pattern. For each delay step, the data transmission is checked using diagnostics memories. The number of sectors with at least one error is shown in the histogram per delay setting. These delay settings with transmission errors, which need to be avoided, cluster far away from the current operating point (delay setting of 3ns) with margins of more than +/- 5ns.


png

png
Rate of each of the RPC (centre lines) and TGC (left and right disks) sectors.

Taken during a run of stable beams, the eight-fold structure of the muon detector can be seen in the RPC, this is harder to see in the TGC due to limited statistics. The numbers on the blue/purple coloured background show the MIOCT slot numbers, showing how these are linked between TGC and RPC.


png
RPC and TGC rates as a function of transverse momentum threshold

Shows the rate as a function of PT threshold (y-axis) for each sector (x-axis). The first 4 sectors correspond to the RPC, any gaps appear due to limited statistics. Each threshold can have 2 candidates and there is also a total. The remaining sectors are for the TGC, where the 4th trigger threshold was not being used. Each plot is one MIOCT board (its slot number gives the position of the detector inputs, as shown in the above plot) and all inputs report similar rates.


png
>
>Approved plots that can be shown by ATLAS speakers at conferences and similar events. Please do not add figures on your own. Contact the responsible project leader in case of questions and/or suggestions. 


Major updates:
Changed: <
<-- JoergStelzer - 13-Jun-2011>
>-- StefanoVeneziano - 19-Nov-2018 Responsible: %REVINFO{"$wikiusername" rev="1.1"}%
Subject: public

Revision 302018-05-28 - JumpeiMaeda

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 33 to 33
 png pdf eps
Changed:
<
<

contact: Shunichi Akatsuka & Junpei Maeda
>
>

contact: Shunichi Akatsuka, Yuta Okazaki, & Junpei Maeda
 
Line: 53 to 53
 png pdf eps
Changed:
<
<

contact: Shunichi Akatsuka & Junpei Maeda
>
>

contact: Shunichi Akatsuka, Yuta Okazaki & Junpei Maeda
 

Revision 292018-05-28 - JumpeiMaeda

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 11 to 11
  Approved plots that can be shown by ATLAS speakers at conferences and similar events. Please do not add figures on your own. Contact the responsible project leader in case of questions and/or suggestions. Follow the guidelines on the trigger public results page.
Added:
>
>

Performance plots for Phase-I upgrades

Performance estimation of the Level-1 Endcap muon trigger at Run 2 and Run 3: ATL-COM-DAQ-2018-033 (27 May 2018)

The pseudo-rapidity (η) distributions of the Level-1 MU20 RoI. The L1 MU20 candidates in Run 2 are collected by pass-through triggers (HLT_noalg_L1MU20), in 2017 data with a center-ofmass energy of 13 TeV and a bunch-crossing interval of 25 ns. The distribution when enabling TileCal-TGC coincidence is estimated from 2017 data. The expected distribution in Run 2 shows the final distribution at the end of Run 2 after enabling TileCal coincidence. Matching between the offline muon and the L1 MU20 RoI requires dR < 0.1, where dR is calculated from dη, dφ between the offline muon position extrapolated to RoI plane and the central position of the RoI. .png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda
The pseudo-rapidity (η) distributions of the Level-1 MU20 RoI. The L1 MU20 candidates in Run 2 are collected by pass-through triggers (HLT_noalg_L1MU20), in 2017 data with a center-ofmass energy of 13 TeV and a bunch-crossing interval of 25 ns. The distribution when enabling TileCal-TGC coincidence is estimated from 2017 data. The distributions when enabling RPC BIS7/8 and NSW coincidence are estimated from MDT segments information and single muon MC study results. The expected distribution in Run 3 shows the final distribution in Run 3 after enabling all TileCal, RPC BIS7/8, and NSW coincidences. Matching between the offline muon and the L1 MU20 RoI requires dR < 0.1, where dR is calculated from dη, dφ between the offline muon position extrapolated to RoI plane and the central position of the RoI. .png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda

Performance estimation of the Level-1 Endcap muon trigger by using NSW angle information: ATL-COM-DAQ-2017-022 (May 6, 2017)

Distributions of difference in η between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and the track segment position in the New Small Wheel (NSW), and dθ measured at NSW. dθ is defined as dθ = θposition - θtrack, where θposition is the polar angle calculated from the position of the track segment, and θtrack is the polar angle of the track vector. The distributions are obtained by simulation with muon pT = 20 GeV (left), 40 GeV (right). Two peaks are observed in the left figure (pT= 20 GeV) due to the different charges of the muons. In the right figure (pT = 40 GeV), because the pT of the muons are higher, the split of the two peaks are smaller, and therefore they are not resolved.
.png
png pdf eps
.png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda
Relative trigger efficiencies compared to Run-2 Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. The Run-2 L1_MU20 requires position matching of TGC Big Wheel (BW) and the TGC Forward-Inner chamber (FI) at 1.3 < |ηRoI| < 2.4. The efficiencies are measured with offline reconstructed muons, and are shown as a function of the transverse momentum of the muons. Efficiencies with additional coincidence requirements applied to the L1_MU20 are shown by coloured points. The open circle points show the efficiency with New Small Wheel (NSW) coincidence logic using dη-dθ coincidence window, described in ATL-COM-DAQ-2015-142. The open triangle points show the efficiency with NSW coincidence logic using both dη-dφ and dη-dθ coincidence window derived from the simulation study. The track segment finding efficiency in the NSW is assumed to be 97%. .png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda
pT distributions of offline reconstructed muons matched to a Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. Matching between the offline muon and the L1_MU20 RoI requires dR < 0.5, where dR is calculated from η, φ of the offline muon at I.P. and the central position of the L1_MU20 RoI. The distribution of Run-2 L1_MU20 candidates, generated by the TGC Big Wheel (BW) and TGC Forward-Inner chamber (FI), are collected by pass-through triggers (HLT_noalg_L1MU20), in 2016 data with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including each New Small Wheel (NSW) coincidence logics are estimated by multiplying the relative trigger efficiencies measured by simulation. .png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda

Performance estimation of Level1 endcap muon trigger for Run3: ATL-COM-DAQ-2015-142 (September 20, 2015)

Distributions of position differences between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and track segments in the New Small Wheel (NSW). The distributions are obtained by simulations with muon pT = 20 GeV (top), 40 GeV (bottom). Two peaks are observed in the distribution with muon pT = 20 GeV since the position differences depend on muon’s charge. Criteria of the position matching between the BW-RoI and NSW-track for the Level-1 endcap muon trigger for Run3 are defined from these distributions. .png
png eps
.png
png eps
contact: Tomoe Kishimoto
L1_MU20 trigger efficiencies when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) with respect to the trigger efficiency of the TGC Big Wheel (BW) standalone. The track segment finding efficiency in the NSW is assumed to be 97%. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The trigger efficiencies are measured with offline reconstructed muons with 1.3 < |eta| < 2.5, and shown as a function of the transverse momentum of the muons. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
pT distributions of offline reconstructed muons with 1.3 < |eta| < 2.5 matched to a L1_MU20 candidate. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The distribution with L1_MU20 candidates generated by the TGC Big Wheel (BW) standalone are obtained from a data sample collected by pass-through triggers (HLT_noalg_L1MU20) in run276329, which was taken on 16-17 Aug. 2015 with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) are estimated by multiplying the relative trigger efficiencies measured by simulations. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
 

2017 data

Performance plots for Level1 Barrel Muon Trigger: ATL-COM-DAQ-2018-008 (Feb 16, 2018)

Line: 317 to 465
 
Deleted:
<
<

Performance plots for Phase-I upgrades

Performance estimation of the Level-1 Endcap muon trigger by using NSW angle information: ATL-COM-DAQ-2017-022 (May 6, 2017)

Distributions of difference in η between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and the track segment position in the New Small Wheel (NSW), and dθ measured at NSW. dθ is defined as dθ = θposition - θtrack, where θposition is the polar angle calculated from the position of the track segment, and θtrack is the polar angle of the track vector. The distributions are obtained by simulation with muon pT = 20 GeV (left), 40 GeV (right). Two peaks are observed in the left figure (pT= 20 GeV) due to the different charges of the muons. In the right figure (pT = 40 GeV), because the pT of the muons are higher, the split of the two peaks are smaller, and therefore they are not resolved.
.png
png pdf eps
.png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda
Relative trigger efficiencies compared to Run-2 Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. The Run-2 L1_MU20 requires position matching of TGC Big Wheel (BW) and the TGC Forward-Inner chamber (FI) at 1.3 < |ηRoI| < 2.4. The efficiencies are measured with offline reconstructed muons, and are shown as a function of the transverse momentum of the muons. Efficiencies with additional coincidence requirements applied to the L1_MU20 are shown by coloured points. The open circle points show the efficiency with New Small Wheel (NSW) coincidence logic using dη-dθ coincidence window, described in ATL-COM-DAQ-2015-142. The open triangle points show the efficiency with NSW coincidence logic using both dη-dφ and dη-dθ coincidence window derived from the simulation study. The track segment finding efficiency in the NSW is assumed to be 97%. .png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda
pT distributions of offline reconstructed muons matched to a Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. Matching between the offline muon and the L1_MU20 RoI requires dR < 0.5, where dR is calculated from η, φ of the offline muon at I.P. and the central position of the L1_MU20 RoI. The distribution of Run-2 L1_MU20 candidates, generated by the TGC Big Wheel (BW) and TGC Forward-Inner chamber (FI), are collected by pass-through triggers (HLT_noalg_L1MU20), in 2016 data with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including each New Small Wheel (NSW) coincidence logics are estimated by multiplying the relative trigger efficiencies measured by simulation. .png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda

Performance estimation of Level1 endcap muon trigger for Run3: ATL-COM-DAQ-2015-142 (September 20, 2015)

Distributions of position differences between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and track segments in the New Small Wheel (NSW). The distributions are obtained by simulations with muon pT = 20 GeV (top), 40 GeV (bottom). Two peaks are observed in the distribution with muon pT = 20 GeV since the position differences depend on muon’s charge. Criteria of the position matching between the BW-RoI and NSW-track for the Level-1 endcap muon trigger for Run3 are defined from these distributions. .png
png eps
.png
png eps
contact: Tomoe Kishimoto
L1_MU20 trigger efficiencies when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) with respect to the trigger efficiency of the TGC Big Wheel (BW) standalone. The track segment finding efficiency in the NSW is assumed to be 97%. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The trigger efficiencies are measured with offline reconstructed muons with 1.3 < |eta| < 2.5, and shown as a function of the transverse momentum of the muons. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
pT distributions of offline reconstructed muons with 1.3 < |eta| < 2.5 matched to a L1_MU20 candidate. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The distribution with L1_MU20 candidates generated by the TGC Big Wheel (BW) standalone are obtained from a data sample collected by pass-through triggers (HLT_noalg_L1MU20) in run276329, which was taken on 16-17 Aug. 2015 with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) are estimated by multiplying the relative trigger efficiencies measured by simulations. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
 

2015 data @ 13 TeV

Line: 1365 to 1409
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.eps" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.eps" path="ATL-COM-DAQ-2018-008-turnon.eps" size="15843" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.pdf" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.pdf" path="ATL-COM-DAQ-2018-008-turnon.pdf" size="61562" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.png" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.png" path="ATL-COM-DAQ-2018-008-turnon.png" size="23758" user="stelzer" version="1"
Added:
>
>
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.png" attr="" comment="" date="1527475411" name="ATL-COM-DAQ-2018-033-fig1.png" path="ATL-COM-DAQ-2018-033-fig1.png" size="15129" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig2.eps" attr="" comment="" date="1527475412" name="ATL-COM-DAQ-2018-033-fig2.eps" path="ATL-COM-DAQ-2018-033-fig2.eps" size="77324" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig2.pdf" attr="" comment="" date="1527475412" name="ATL-COM-DAQ-2018-033-fig2.pdf" path="ATL-COM-DAQ-2018-033-fig2.pdf" size="44393" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig2.png" attr="" comment="" date="1527475412" name="ATL-COM-DAQ-2018-033-fig2.png" path="ATL-COM-DAQ-2018-033-fig2.png" size="24038" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.eps" attr="" comment="" date="1527475412" name="ATL-COM-DAQ-2018-033-fig1.eps" path="ATL-COM-DAQ-2018-033-fig1.eps" size="24631" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-033-fig1.pdf" attr="" comment="" date="1527475412" name="ATL-COM-DAQ-2018-033-fig1.pdf" path="ATL-COM-DAQ-2018-033-fig1.pdf" size="17436" user="junpei" version="1"

Revision 282018-04-25 - MarcoSessa

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 130 to 130
 
BC Timing for each trigger tower
Changed:
<
<
Fraction of the RPC High-pT trigger hits associated correctly to the collision Bunch Crossing for each Level 1 Barrel Muon trigger tower. The data is from a the pp runs at √s = 13 TeV with an integrated luminosity L=0.58 pb-1. The trigger sectors have a different number of towers: the small sectors have 6 trigger towers, the large sectors have 7 and the feet sectors have 8. The blank bin in sector 11 corresponds to a trigger tower masked in this specific run.
>
>
Fraction of the RPC High-pT trigger hits associated correctly to the collision Bunch Crossing for each Level 1 Barrel Muon trigger tower. The data is from a the pp runs at √s = 13 TeV with an integrated luminosity L=0.58 fb-1. The trigger sectors have a different number of towers: the small sectors have 6 trigger towers, the large sectors have 7 and the feet sectors have 8. The blank bin in sector 11 corresponds to a trigger tower masked in this specific run.
 

Revision 272018-02-18 - JoergStelzer

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 13 to 13
 

2017 data

Added:
>
>

Performance plots for Level1 Barrel Muon Trigger: ATL-COM-DAQ-2018-008 (Feb 16, 2018)

L1_MU10 efficiency gain from new new feet trigger chambers in sector 12
Efficiency of Level 1 MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the Level 1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon Level 1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.
ATL-COM-DAQ-2018-008-sector12_mu10.png
png pdf eps
L1_MU11 efficiency gain from new new feet trigger chambers in sector 12
Efficiency of Level 1 MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT Level 1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon Level 1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.

png pdf eps
L1_MU10 efficiency gain from new new feet trigger chambers in sector 14
Efficiency of Level 1 MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the Level 1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon Level 1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.

png pdf eps
L1_MU11 efficiency gain from new new feet trigger chambers in sector 14
Efficiency of Level 1 MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT Level 1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon Level 1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.

png pdf eps
L1_MU10 efficiency in 2016 and 2017
Efficiency of Level 1 MU10 trigger in 2017 and comparison with 2016 trigger efficiency. The efficiency is plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing.

png pdf eps
L1_MU11 efficiency in 2016 and 2017
Efficiency of Level 1 MU11 trigger in 2017 and comparison with 2016 trigger efficiency. The efficiency is plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing.

png pdf eps
L1_MU10 efficiency 2017 / 2016 ratio
η-φ map of the ratio between the Level 1 Barrel muon trigger efficiency in 2017 and 2016 for the trigger threshold MU10. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The blank bins correspond to regions of the Muon Spectrometer not covered by RPC trigger detectors.

png pdf eps
L1_MU11 efficiency 2017 / 2016 ratio
η-φ map of the ratio between the Level 1 Barrel muon trigger efficiency in 2017 and 2016 for the trigger threshold MU11. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass a “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT Level 1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The blank bins correspond to regions of the Muon Spectrometer not covered by RPC trigger detectors.

png pdf eps
Turn-on curves for all L1 thresholds
Level 1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η| < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4, MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11, MU20, MU21 with a further coincidence on the outer RPC stations. The MU20 threshold takes into account the full muon barrel region, while for the otherwise identical MU21 the new feet trigger is excluded. For this reason, the trigger efficiency is higher for MU20. The efficiency is measured using events selected by independent triggers and requiring an offline reconstructed muon.

png pdf eps
Plateau efficiencies for all L1 thresholds
Plateau value of the Level 1 muon barrel trigger efficiency (as a function of muon pT) for reconstructed muons with pT > 15 GeV and |η| < 1.05 as a function of time. Each point corresponds to a different ATLAS run recorded in 2017. Only runs with integrated luminosity greater than 50 pb-1 and at least 1000 reconstructed muons have been used. The efficiency is shown for the six Level-1 thresholds: MU4, MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11, MU20, MU21 with a further coincidence on the outer RPC stations. The MU20 threshold takes into account the full muon barrel region, while for the otherwise identical MU21 the new feet trigger is excluded. For this reason, the trigger efficiency is higher for MU20. The efficiency is measured using events selected by independent triggers and requiring an offline reconstructed muon.

png pdf eps
BC Timing for each trigger tower
Fraction of the RPC High-pT trigger hits associated correctly to the collision Bunch Crossing for each Level 1 Barrel Muon trigger tower. The data is from a the pp runs at √s = 13 TeV with an integrated luminosity L=0.58 pb-1. The trigger sectors have a different number of towers: the small sectors have 6 trigger towers, the large sectors have 7 and the feet sectors have 8. The blank bin in sector 11 corresponds to a trigger tower masked in this specific run.

png pdf eps
BC timing fluctuations during 2017
Fraction of RPC High-pT trigger hits associated correctly to the collision Bunch Crossing for the whole RPC trigger system as a function of time. Each point corresponds to a different ATLAS run recorded in 2017. Only runs with integrated luminosity greater than 50 pb-1 have been used. In the period above day 100, corresponding to September-October 2017, two structures are observed, with the lower one with a BC fraction around 99.4%. This lower fraction with respect to the standard one of about 99.6% is due to some problems in the trigger hardware that led to a removal of part of the RPC readout (1 readout module out of 32 in total) from the data acquisition for a small period in those particular runs.

png pdf eps

 

Level-1 endcap muon trigger performance in 2016 and 2017: ATL-COM-DAQ-2017-112 (Sep 13, 2017)

Line: 1184 to 1329
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-2.eps" attr="" comment="" date="1505482112" name="ATL-COM-DAQ-2017-112-2.eps" path="ATL-COM-DAQ-2017-112-2.eps" size="13137" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-2.pdf" attr="" comment="" date="1505482113" name="ATL-COM-DAQ-2017-112-2.pdf" path="ATL-COM-DAQ-2017-112-2.pdf" size="18222" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-2.png" attr="" comment="" date="1505482114" name="ATL-COM-DAQ-2017-112-2.png" path="ATL-COM-DAQ-2017-112-2.png" size="21191" user="junpei" version="1"
Added:
>
>
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.eps" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.eps" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.eps" size="9721" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.pdf" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.pdf" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.pdf" size="45390" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.png" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.png" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU10.png" size="7833" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.eps" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.eps" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.eps" size="9704" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.pdf" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.pdf" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.pdf" size="45370" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.png" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.png" path="ATL-COM-DAQ-2018-008-1D_eff_17_16_MU11.png" size="7795" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-BCtiming.eps" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-BCtiming.eps" path="ATL-COM-DAQ-2018-008-BCtiming.eps" size="20488" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-BCtiming.pdf" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-BCtiming.pdf" path="ATL-COM-DAQ-2018-008-BCtiming.pdf" size="344486" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-BCtiming.png" attr="" comment="" date="1518981535" name="ATL-COM-DAQ-2018-008-BCtiming.png" path="ATL-COM-DAQ-2018-008-BCtiming.png" size="28860" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.eps" attr="" comment="" date="1518981642" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.eps" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.eps" size="41007" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.pdf" attr="" comment="" date="1518981643" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.pdf" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.pdf" size="477959" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.png" attr="" comment="" date="1518981643" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.png" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU10.png" size="32831" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.eps" attr="" comment="" date="1518981643" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.eps" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.eps" size="42948" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.pdf" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.pdf" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.pdf" size="476507" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.png" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.png" path="ATL-COM-DAQ-2018-008-effratio_2017over2016_MU11.png" size="35283" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-plateaueff_vs_days.eps" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-plateaueff_vs_days.eps" path="ATL-COM-DAQ-2018-008-plateaueff_vs_days.eps" size="23873" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" path="ATL-COM-DAQ-2018-008-plateaueff_vs_days.pdf" size="56524" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" attr="" comment="" date="1518981644" name="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" path="ATL-COM-DAQ-2018-008-plateaueff_vs_days.png" size="28505" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu10.eps" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu10.eps" path="ATL-COM-DAQ-2018-008-sector12_mu10.eps" size="20451" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu10.pdf" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu10.pdf" path="ATL-COM-DAQ-2018-008-sector12_mu10.pdf" size="224667" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu10.png" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu10.png" path="ATL-COM-DAQ-2018-008-sector12_mu10.png" size="19191" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu11.eps" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu11.eps" path="ATL-COM-DAQ-2018-008-sector12_mu11.eps" size="20441" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu11.pdf" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu11.pdf" path="ATL-COM-DAQ-2018-008-sector12_mu11.pdf" size="202504" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector12_mu11.png" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector12_mu11.png" path="ATL-COM-DAQ-2018-008-sector12_mu11.png" size="19480" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu10.eps" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector14_mu10.eps" path="ATL-COM-DAQ-2018-008-sector14_mu10.eps" size="20405" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu10.pdf" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector14_mu10.pdf" path="ATL-COM-DAQ-2018-008-sector14_mu10.pdf" size="228413" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu10.png" attr="" comment="" date="1518981672" name="ATL-COM-DAQ-2018-008-sector14_mu10.png" path="ATL-COM-DAQ-2018-008-sector14_mu10.png" size="19347" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu11.eps" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-sector14_mu11.eps" path="ATL-COM-DAQ-2018-008-sector14_mu11.eps" size="20423" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu11.pdf" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-sector14_mu11.pdf" path="ATL-COM-DAQ-2018-008-sector14_mu11.pdf" size="199659" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-sector14_mu11.png" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-sector14_mu11.png" path="ATL-COM-DAQ-2018-008-sector14_mu11.png" size="19570" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-time_vs_days.eps" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-time_vs_days.eps" path="ATL-COM-DAQ-2018-008-time_vs_days.eps" size="23742" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-time_vs_days.pdf" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-time_vs_days.pdf" path="ATL-COM-DAQ-2018-008-time_vs_days.pdf" size="59572" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-time_vs_days.png" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-time_vs_days.png" path="ATL-COM-DAQ-2018-008-time_vs_days.png" size="12073" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.eps" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.eps" path="ATL-COM-DAQ-2018-008-turnon.eps" size="15843" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.pdf" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.pdf" path="ATL-COM-DAQ-2018-008-turnon.pdf" size="61562" user="stelzer" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2018-008-turnon.png" attr="" comment="" date="1518981703" name="ATL-COM-DAQ-2018-008-turnon.png" path="ATL-COM-DAQ-2018-008-turnon.png" size="23758" user="stelzer" version="1"

Revision 262018-02-16 - MarcoSessa

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 13 to 13
 

2017 data

Deleted:
<
<

Performance plots for Level1 Barrel Muon Trigger: ATL-COM-DAQ-2018-008 (Feb 16, 2018)

 

Level-1 endcap muon trigger performance in 2016 and 2017: ATL-COM-DAQ-2017-112 (Sep 13, 2017)

Changed:
<
<
border=1 cellpadding=10 cellspacing=10>
Level-1 muon trigger efficiency at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Efficiency of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the offline muon transverse momentum. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. The efficiency is estimated by tag-and-probe method using Z→μμ events. In 2017, look-up-table in the endcap region have been optimized using 2016 data.
.png
>
>

Level-1 muon trigger efficiency at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Efficiency of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the offline muon transverse momentum. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. The efficiency is estimated by tag-and-probe method using Z→μμ events. In 2017, look-up-table in the endcap region have been optimized using 2016 data.
.png
 png pdf
Changed:
<
<
eps
Level-1 muon trigger rate at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Trigger rate of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the instantaneous luminosity. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. In 2017, the overlap region at the barrel feet region and look-up table in the endcap region have been optimized using 2016 data.
.png
>
>
eps

Level-1 muon trigger rate at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Trigger rate of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the instantaneous luminosity. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. In 2017, the overlap region at the barrel feet region and look-up table in the endcap region have been optimized using 2016 data.
.png
 png pdf
Changed:
<
<
eps
>
>
eps

 

Performance plots for Level1 Barrel Muon Trigger: ATL-COM-DAQ-2017-113 (Sep 13, 2017)

Changed:
<
<
border=1 cellpadding=10 cellspacing=10>
Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
>
>

Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
 png pdf
Changed:
<
<
eps
Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
>
>
eps

Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
 png pdf
Changed:
<
<
eps
Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
>
>
eps

Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
 png pdf
Changed:
<
<
eps
Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
>
>
eps

Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
 png pdf
Changed:
<
<
eps
L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η | < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4, MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11, MU20, MU21 with a further coincidence on the outer RPC stations. MU21 threshold is equal to MU20 everywhere but in the “feet” region, where the new feet trigger does not have this threshold. The efficiency is measured using events selected by independent triggers. .png
>
>
eps

L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η | < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4, MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11, MU20, MU21 with a further coincidence on the outer RPC stations. MU21 threshold is equal to MU20 everywhere but in the “feet” region, where the new feet trigger does not have this threshold. The efficiency is measured using events selected by independent triggers. .png
 png pdf
Changed:
<
<
eps
>
>
eps

 

2016 data

Performance plots for Level1 Barrel Muon Trigger ATL-COM-DAQ-2017-035 (May 23, 2017)

Changed:
<
<
border=1 cellpadding=10 cellspacing=10>
Efficiency of Level 1 (L1) MU10 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically
>
>

Efficiency of Level 1 (L1) MU10 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically
 ~0.1%. The plot shows the general stability of the system with data taking and that in some areas the efficiency has increased thanks to fixing inefficient RPC chambers in the winter shutdown between 2015 and 2016. In particular, it shows the drastic efficiency increase (about 20% absolute) in the regions of the detector support structure feet, where new trigger RPC chambers were installed and commissioned by the end of 2015. The MC simulation was tuned with real RPC strip efficiencies measured on 2015 data and is overlaid to show the expectation of 2016 detector conditions. The MC efficiency of totally inefficient strips was set to 50% to be able to rescale if a given element should be repaired in the future.
Changed:
<
<
.png
>
>
.png
 png
Changed:
<
<
eps
Efficiency of Level 1 (L1) MU11 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU11 trigger requires that a candidate passed the 11 GeV threshold requirement of the L1 muon trigger system (using both medium and outer trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically ~0.1%. The plot shows the general stability of the system with data taking and that in some areas the efficiency has increased thanks to fixing inefficient RPC chambers in the winter shutdown between 2015 and 2016. In particular, it shows the drastic efficiency increase (about 20% absolute) in the regions of the detector support structure feet, where new trigger RPC chambers were installed and commissioned by the end of 2015. The MC simulation was tuned with real RPC strip efficiencies measured on 2015 data and is overlaid to show the expectation of 2016 detector conditions. The MC efficiency of totally inefficient strips was set to 50% to be able to rescale if a given element should be repaired in the future. .png
>
>
eps

Efficiency of Level 1 (L1) MU11 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU11 trigger requires that a candidate passed the 11 GeV threshold requirement of the L1 muon trigger system (using both medium and outer trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically ~0.1%. The plot shows the general stability of the system with data taking and that in some areas the efficiency has increased thanks to fixing inefficient RPC chambers in the winter shutdown between 2015 and 2016. In particular, it shows the drastic efficiency increase (about 20% absolute) in the regions of the detector support structure feet, where new trigger RPC chambers were installed and commissioned by the end of 2015. The MC simulation was tuned with real RPC strip efficiencies measured on 2015 data and is overlaid to show the expectation of 2016 detector conditions. The MC efficiency of totally inefficient strips was set to 50% to be able to rescale if a given element should be repaired in the future. .png
 png
Changed:
<
<
eps
>
>
eps

 Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. It is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the drastic efficiency increase (about 20% absolute) introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the regions of the detector supporting structure feet.
Changed:
<
<
.png
>
>
.png
 png
Changed:
<
<
eps
Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.96 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
>
>
eps

Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.96 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
 png
Changed:
<
<
eps
Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.17 < φ(mu at the interaction vertex) < -0.97) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector support structure feet are placed. .png
>
>
eps

Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.17 < φ(mu at the interaction vertex) < -0.97) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector support structure feet are placed. .png
 png
Changed:
<
<
eps
>
>
eps

 

Performance plots for Phase-I upgrades

Performance estimation of the Level-1 Endcap muon trigger by using NSW angle information: ATL-COM-DAQ-2017-022 (May 6, 2017)

Changed:
<
<
border=1 cellpadding=10 cellspacing=10>
>
>

 Distributions of difference in η between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and the track segment position in the New Small Wheel (NSW), and dθ measured at NSW. dθ is defined as dθ = θposition - θtrack, where θposition is the polar angle calculated from the position of the track segment, and θtrack is the polar angle of the track vector. The distributions are obtained by simulation with muon pT = 20 GeV (left), 40 GeV (right). Two peaks are observed in the left figure (pT= 20 GeV) due to the different charges of the muons. In the right figure (pT = 40 GeV), because the pT of the muons are higher, the split of the two peaks are smaller, and therefore they are not resolved.
Changed:
<
<
| .png
>
>
.png
 png pdf
Changed:
<
<
eps | .png
>
>
eps
.png
 png pdf
Changed:
<
<
eps | contact: Shunichi Akatsuka & Junpei Maeda ||

Relative trigger efficiencies compared to Run-2 Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. The Run-2 L1_MU20 requires position matching of TGC Big Wheel (BW) and the TGC Forward-Inner chamber (FI) at 1.3 < |ηRoI| < 2.4. The efficiencies are measured with offline reconstructed muons, and are shown as a function of the transverse momentum of the muons. Efficiencies with additional coincidence requirements applied to the L1_MU20 are shown by coloured points. The open circle points show the efficiency with New Small Wheel (NSW) coincidence logic using dη-dθ coincidence window, described in ATL-COM-DAQ-2015-142. The open triangle points show the efficiency with NSW coincidence logic using both dη-dφ and dη-dθ coincidence window derived from the simulation study. The track segment finding efficiency in the NSW is assumed to be 97%. .png
>
>
eps
contact: Shunichi Akatsuka & Junpei Maeda
Relative trigger efficiencies compared to Run-2 Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. The Run-2 L1_MU20 requires position matching of TGC Big Wheel (BW) and the TGC Forward-Inner chamber (FI) at 1.3 < |ηRoI| < 2.4. The efficiencies are measured with offline reconstructed muons, and are shown as a function of the transverse momentum of the muons. Efficiencies with additional coincidence requirements applied to the L1_MU20 are shown by coloured points. The open circle points show the efficiency with New Small Wheel (NSW) coincidence logic using dη-dθ coincidence window, described in ATL-COM-DAQ-2015-142. The open triangle points show the efficiency with NSW coincidence logic using both dη-dφ and dη-dθ coincidence window derived from the simulation study. The track segment finding efficiency in the NSW is assumed to be 97%. .png
 png pdf eps
Changed:
<
<

contact: Shunichi Akatsuka & Junpei Maeda
pT distributions of offline reconstructed muons matched to a Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. Matching between the offline muon and the L1_MU20 RoI requires dR < 0.5, where dR is calculated from η, φ of the offline muon at I.P. and the central position of the L1_MU20 RoI. The distribution of Run-2 L1_MU20 candidates, generated by the TGC Big Wheel (BW) and TGC Forward-Inner chamber (FI), are collected by pass-through triggers (HLT_noalg_L1MU20), in 2016 data with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including each New Small Wheel (NSW) coincidence logics are estimated by multiplying the relative trigger efficiencies measured by simulation. .png
>
>

contact: Shunichi Akatsuka & Junpei Maeda

pT distributions of offline reconstructed muons matched to a Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. Matching between the offline muon and the L1_MU20 RoI requires dR < 0.5, where dR is calculated from η, φ of the offline muon at I.P. and the central position of the L1_MU20 RoI. The distribution of Run-2 L1_MU20 candidates, generated by the TGC Big Wheel (BW) and TGC Forward-Inner chamber (FI), are collected by pass-through triggers (HLT_noalg_L1MU20), in 2016 data with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including each New Small Wheel (NSW) coincidence logics are estimated by multiplying the relative trigger efficiencies measured by simulation. .png
 png pdf eps
Changed:
<
<

contact: Shunichi Akatsuka & Junpei Maeda
>
>

contact: Shunichi Akatsuka & Junpei Maeda

 

Performance estimation of Level1 endcap muon trigger for Run3: ATL-COM-DAQ-2015-142 (September 20, 2015)

Changed:
<
<
border=1 cellpadding=10 cellspacing=10>
>
>

 Distributions of position differences between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and track segments in the New Small Wheel (NSW). The distributions are obtained by simulations with muon pT = 20 GeV (top), 40 GeV (bottom). Two peaks are observed in the distribution with muon pT = 20 GeV since the position differences depend on muon’s charge. Criteria of the position matching between the BW-RoI and NSW-track for the Level-1 endcap muon trigger for Run3 are defined from these distributions.
Changed:
<
<
.png
>
>
.png
 png
Changed:
<
<
eps
.png
>
>
eps
.png
 png eps
Changed:
<
<

contact: Tomoe Kishimoto
L1_MU20 trigger efficiencies when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) with respect to the trigger efficiency of the TGC Big Wheel (BW) standalone. The track segment finding efficiency in the NSW is assumed to be 97%. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The trigger efficiencies are measured with offline reconstructed muons with 1.3 < |eta| < 2.5, and shown as a function of the transverse momentum of the muons. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
>
>

contact: Tomoe Kishimoto

L1_MU20 trigger efficiencies when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) with respect to the trigger efficiency of the TGC Big Wheel (BW) standalone. The track segment finding efficiency in the NSW is assumed to be 97%. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The trigger efficiencies are measured with offline reconstructed muons with 1.3 < |eta| < 2.5, and shown as a function of the transverse momentum of the muons. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
 png eps
Changed:
<
<

contact: Tomoe Kishimoto
pT distributions of offline reconstructed muons with 1.3 < |eta| < 2.5 matched to a L1_MU20 candidate. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The distribution with L1_MU20 candidates generated by the TGC Big Wheel (BW) standalone are obtained from a data sample collected by pass-through triggers (HLT_noalg_L1MU20) in run276329, which was taken on 16-17 Aug. 2015 with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) are estimated by multiplying the relative trigger efficiencies measured by simulations. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
>
>

contact: Tomoe Kishimoto

pT distributions of offline reconstructed muons with 1.3 < |eta| < 2.5 matched to a L1_MU20 candidate. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The distribution with L1_MU20 candidates generated by the TGC Big Wheel (BW) standalone are obtained from a data sample collected by pass-through triggers (HLT_noalg_L1MU20) in run276329, which was taken on 16-17 Aug. 2015 with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) are estimated by multiplying the relative trigger efficiencies measured by simulations. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
 png eps
Changed:
<
<

contact: Tomoe Kishimoto
>
>

contact: Tomoe Kishimoto

 

2015 data @ 13 TeV

Level 1 Barrel Muon trigger and RPC performance in 2015

Changed:
<
<
border=1 cellpadding=10 cellspacing=10>
RPC trigger coverage
>
>

RPC trigger coverage
 Distribution RPC trigger hits in the pivot layer associated with an high-pT trigger, shown in terms of the η and φ strip coordinates. The black lines indicate the contours of individual RPC chambers. The data set corresponds to pp collisions collected with 25 ns spacing between colliding bunches.
Changed:
<
<
.pdf
png pdf
RPC trigger coverage (in terms of strip index)
>
>

.pdf
png pdf
RPC trigger coverage (in terms of strip index)
 Distribution RPC trigger hits in the pivot layer associated with an high-pT trigger shown in term of the strip index of η and φ strips. The black lines indicate the contour of individual RPC chambers.
Changed:
<
<
.pdf
png pdf
RPC efficiency
>
>

.pdf
png pdf
RPC efficiency
 Distribution of the measured RPC "gap efficiency" of each gas volume, defined by the presence of hits on at least one of the two strip panels (η and φ), and of the "detector efficiency" for each strip panel, defined by the presence of hits in the strip panel. The total number of panels (η + φ) is 8592, the number of gaps is 4296. The efficiency is measured using standalone RPC tracks obtained removing the hits on the unit under test. Trigger biases are removed requiring that the remaining hits satisfy the trigger coincidence.
Changed:
<
<
.pdf
png pdf
RPC dead strips
>
>

.pdf
png pdf
RPC dead strips
 Distribution of the fraction of dead strips per readout panel for both views. Dead strips can originate from different reasons, e.g. readout problems, masking of noisy channels or gas gaps disconnected from HV. The peak at 1 shows that the fraction of readout panels in which all strips are dead is approximately 2%.
Changed:
<
<
.pdf
png pdf
RPC cluster size
>
>

.pdf
png pdf
RPC cluster size
 Distribution of RPC cluster size as measured in readout hits for the η and φ strips.
Changed:
<
<
.pdf
png pdf
Average RPC cluster size per panel
>
>

.pdf
png pdf
Average RPC cluster size per panel
 Distribution of average RPC cluster size for each readout panel for both the η and φ views.
Changed:
<
<
.pdf
png pdf
L1 Barrel Trigger Bunch Crossing identification
>
>

.pdf
png pdf
L1 Barrel Trigger Bunch Crossing identification
 Difference between the event bunch crossing (BC) number identified by the Level-1 Muon Barrel trigger and the collision bunch crossing number, for muons passing reconstructed offline with pT > 15 GeV and passing the corresponding Level-1 threshold MU15. The collision bunch crossing is identified using independent triggers. The plot shows that 99.7% of the L1 barrel events have been tagged with the correct BC number. Data from a single pp collision run at √s = 13 TeV ( Oct 31/Nov 1, LHC fill 4560).
Changed:
<
<
.pdf
png pdf
L1 Barrel Trigger timing
>
>

.pdf
png pdf
L1 Barrel Trigger timing
 RPC hit time distribution for trigger hits, measured from readout data (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing (BC). One time unit on the horizontal axis is 1/8 of a BC (3.125 ns). The horizontal axis covers the readout window in which data are collected that corresponds to 8 BCs. The plot shows that the RPC trigger hit distribution is within the collision BC, and has a sigma equal to 0.94 ticks (= 2.9 ns).
Changed:
<
<
.pdf
png pdf
L1 Barrel Trigger timing per tower
>
>

.pdf
png pdf
L1 Barrel Trigger timing per tower
 Fraction of RPC trigger hits associated correctly to the collision Bunch Crossing for each of the 428 Barrel Muon trigger towers. The red contours show the new trigger towers of the “feet”-chamber upgrade that have been activated at the end of 2015 data taking and have not been yet fully commissioned. One tower with hardware problems (Tower=2, Sector=38) is visible as an orange area. The two white areas (Tower=3, Sector=23, 24, 55, 56) correspond to the “elevator” chambers, not yet commissioned in 2015. Data from pp runs at √s = 5 TeV, integrated luminosity L=28 pb-1.
Changed:
<
<
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\eta$
L1 muon barrel trigger efficiency for reconstructed muons with $p_T>15$ GeV as a function of η. The efficiency is shown for two thresholds: MU10 (pT > 10 GeV, selected with a coincidence of the two inner RPC stations) and MU11 (pT > 10 GeV selected with a further coincidence with the outer RPC stations). The dashed histograms show the results from a special MC simulation which includes measured efficiencies of the RPC chambers. The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures. The efficiency was measured using events selected by independent triggers.
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\phi$
>
>

.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\eta$
L1 muon barrel trigger efficiency for reconstructed muons with $p_T>15$ GeV as a function of η. The efficiency is shown for two thresholds: MU10 (pT > 10 GeV, selected with a coincidence of the two inner RPC stations) and MU11 (pT > 10 GeV selected with a further coincidence with the outer RPC stations). The dashed histograms show the results from a special MC simulation which includes measured efficiencies of the RPC chambers. The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures. The efficiency was measured using events selected by independent triggers.
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\phi$
 L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV as a function of φ. The efficiency is shown for two thresholds: MU10 (pT > 10 GeV, selected with a coincidence of the two inner RPC stations) and MU11 (pT > 10 GeV selected with a further coincidence with the outer RPC stations). The dashed histograms show the results from a special MC simulation which includes measured efficiencies of the RPC chambers. The regions with lower efficiency around φ = -2 and φ = -1 correspond to the “feet” structures that support the ATLAS calorimeters, in which the muon chamber coverage is reduced. The efficiency was measured using events selected by independent triggers.
Changed:
<
<
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of pT
>
>

.pdf
png pdf
L1 Barrel Trigger efficiency as a function of pT
 L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η| < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4,MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11,MU15,MU20 with a further coincidence on the outer RPC stations. The fitted plateau efficiency for MU10 and MU11 is also shown. The efficiency was measured using events selected by independent triggers.
Changed:
<
<
.pdf
png pdf
RPC efficiency with the Z “tag and probe” method
>
>

.pdf
png pdf
RPC efficiency with the Z “tag and probe” method
 The plot shows the distribution of the measured RPC detector efficiencies defined by the positive response of the η strips (similar to Figure 3) measured using reconstructed muons from Z → μ μ decays with the “tag-and-probe method”.
Changed:
<
<
.pdf
png pdf
>
>

.pdf
png pdf
 

Performance of Level1 Endcap FI coincidence in Run2:

Added:
>
>

(top) Efficiency of Level1(L1) muon trigger with the pT threshold of 15 GeV (L1_MU15) in the region 1.3 < |η| <1.9, as a function of φ. It is computed with respect to offline muon candidates which are reconstructed using standardATLAS software and are categorized as “combined” muons with tracks in InnerDetector and MuonSpectrometer. It is measured in the Tag-and-Probe method using the Z→μμ candidate events in runs of 13 TeV data taking with 25ns LHC bunch spacing, applying 15 GeV threshold to the offline muons used as probe. Blue and red points show the efficiency [without] and [with] the FI coincidence enabled, respectively. The values “with FI coincidence” are calculated with requiring coincidence flags in the FI chambers. (bottom) Ratio of the efficiency values in the top plot: [with FI] / [without FI]. The values ( ~98% ) shows the efficiency in the same pseudo-rapidity region 1.3 < |η| < 1.9 as in the top plot, which is negligible in the total eta region. .pdf
png pdf
contact: Toshi Sumida
(top) Efficiency of L1_MU15 trigger in the endcap region, as a function of pT of offline muons. It is measured in the Tag-and-Prove method using Z→μμ events. Blue and red points show the efficiency without and with the FI coincidence enabled, respectively. (bottom) Ratio of the absolute trigger efficiency values in the top plot: [with FI] / [without FI], which shows the additional efficiency of the FI coincidence. .pdf
png pdf
contact: Toshi Sumida
 
Changed:
<
<
border=1 cellpadding=10 cellspacing=10>
(top) Efficiency of Level1(L1) muon trigger with the pT threshold of 15 GeV (L1_MU15) in the region 1.3 < |η| <1.9, as a function of φ. It is computed with respect to offline muon candidates which are reconstructed using standardATLAS software and are categorized as “combined” muons with tracks in InnerDetector and MuonSpectrometer. It is measured in the Tag-and-Probe method using the Z→μμ candidate events in runs of 13 TeV data taking with 25ns LHC bunch spacing, applying 15 GeV threshold to the offline muons used as probe. Blue and red points show the efficiency [without] and [with] the FI coincidence enabled, respectively. The values “with FI coincidence” are calculated with requiring coincidence flags in the FI chambers. (bottom) Ratio of the efficiency values in the top plot: [with FI] / [without FI]. The values ( ~98% ) shows the efficiency in the same pseudo-rapidity region 1.3 < |η| < 1.9 as in the top plot, which is negligible in the total eta region. .pdf
png pdf
contact: Toshi Sumida
(top) Efficiency of L1_MU15 trigger in the endcap region, as a function of pT of offline muons. It is measured in the Tag-and-Prove method using Z→μμ events. Blue and red points show the efficiency without and with the FI coincidence enabled, respectively. (bottom) Ratio of the absolute trigger efficiency values in the top plot: [with FI] / [without FI], which shows the additional efficiency of the FI coincidence. .pdf
png pdf
contact: Toshi Sumida
>
>
 (top) η distributions of Region of Interest (RoI) from the L1_MU15 trigger. The number of the entries are normalized with the integrated luminosities in the runs with and without the FI coincidence enabled. (bottom) Reduction on the trigger rate of L1_MU15, calculated in (1-N[with FI]/N[without FI], N: number of entry in each bin). The rate reductions in the regions with no FI chambers are consistent with 0 within the errors, which are computed in the statistics only. The binning for those regions are merged to reduce the visual effect from the statistical fluctuation.
Changed:
<
<
.pdf
png pdf
contact: Toshi Sumida
>
>

.pdf
png pdf
contact: Toshi Sumida
 (top) η distributions of Region of Interest (RoI) from the L1 muon trigger with the pT threshold of 20 GeV (L1_MU20). The number of the entries are normalized with the integrated luminosities in the runs with and without the FI coincidence enabled. (bottom) Reduction on the trigger rate of L1_MU20, calculated in (1-N[with FI]/N[without FI], N: number of entry in each bin). The rate reductions in the regions with no FI chambers are consistent with 0 in the errors, which are computed in the statistics only. The binning for those regions are merged to reduce the visual effect from the statistical fluctuation.
Changed:
<
<
.pdf
png pdf
contact: Toshi Sumida
>
>

.pdf
png pdf
contact: Toshi Sumida
 Trigger rates of the L1_MU15 in the runs with and without the FI coincidence enabled, as functions of the instantaneous luminosity of LHC. The reduction computed from the slope of the linear fitting is 15%.
Changed:
<
<
.pdf
png pdf
contact: Toshi Sumida
>
>

.pdf
png pdf
contact: Toshi Sumida
 Trigger rates of the L1_MU20 in the runs with and without the FI coincidence enabled, as functions of the instantaneous luminosity of LHC. The reduction computed from the slope of the linear fitting is 21%.
Changed:
<
<
.pdf
png pdf
contact: Toshi Sumida
>
>

.pdf
png pdf
contact: Toshi Sumida
 

Trigger rates for muon trigger for Run2: (September 23, 2015)

Added:
>
>
The Level 1 rate for the single muon trigger with a pT threshold of 20 GeV versus instantaneous luminosity. The black (red)  points correspond to data recorded with (without) a coincidence between the FI (Forward-Inner) muon layers with the big-wheel of the muon spectrometer. This coincidence removes collision background from secondary interactions in the ATLAS Endcap toroid which produces particles that only traverse the big wheel. These background signals arrive at the big-wheel layer with a delay of approximately 25ns and therefore did not contribute significantly to the muon trigger rate during the 50ns running in Run-1 and Run-2.  The rate reduction due the coincidence is approximately 25%.

.pdf
png pdf
contact: Philipp Fleischmann
 
Deleted:
<
<
border=1 cellpadding=10 cellspacing=10>
The Level 1 rate for the single muon trigger with a pT threshold of 20 GeV versus instantaneous luminosity. The black (red) points correspond to data recorded with (without) a coincidence between the FI (Forward-Inner) muon layers with the big-wheel of the muon spectrometer. This coincidence removes collision background from secondary interactions in the ATLAS Endcap toroid which produces particles that only traverse the big wheel. These background signals arrive at the big-wheel layer with a delay of approximately 25ns and therefore did not contribute significantly to the muon trigger rate during the 50ns running in Run-1 and Run-2. The rate reduction due the coincidence is approximately 25%.
 
Deleted:
<
<
.pdf
png pdf
contact: Philipp Fleischmann
 

L1Muon Trigger : 2011-2012

The expected eta-distributions of the LVL1 muon trigger in Run-2: ATL-COM-DAQ-2015-205 (Dec. 2016)

Added:
>
>
 
Changed:
<
<
border=1 cellpadding=10 cellspacing=10>
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
>
>
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
 update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.
Changed:
<
<
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
>
>
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
 FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.
Changed:
<
<
The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon. The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a
>
>
The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon. The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a
 transverse momentum of more than 20 GeV.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

Changed:
<
<
.png
>
>

.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino
.png
>
>
pdf

contact: Masaya Ishino
.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
>
>
pdf

contact: Masaya Ishino

The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
 update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.
Changed:
<
<
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
>
>
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
 FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.
Changed:
<
<
The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a
>
>
The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a
 transverse momentum of more than 20 GeV.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

Changed:
<
<
.png
>
>
.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino
.png
>
>
pdf

contact: Masaya Ishino
.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
>
>
pdf

contact: Masaya Ishino

The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
 update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.
Changed:
<
<
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
>
>
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
 FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.
Changed:
<
<
The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon.
>
>
The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon.
  [1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System
Changed:
<
<
.png
>
>

.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
>
>
pdf

contact: Masaya Ishino

The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
 update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.
Changed:
<
<
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
>
>
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
 FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

Changed:
<
<
.png
>
>

.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino
>
>
pdf

contact: Masaya Ishino

 

Performance of the ATLAS Level-1 Trigger: ATL-COM-DAQ-2012-033 (May 02, 2012)

Changed:
<
<
border=1 cellpadding=10 cellspacing=10>
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU10 trigger, measured in a run from 2011 and a run from 2012. Distributions are individually normalized to unit area. The large fraction at approximately η=1 is due to gamma rays from the beam penetrating through a narrow unshielded region between the barrel and endcap regions of the experiment. Additional shielding was installed in this region between 2011 and 2012 running. L1_MU10 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in the TGC and two-stations in the RPC regions of the L1Muon trigger chambers. .png
>
>

η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU10 trigger, measured in a run from 2011 and a run from 2012. Distributions are individually normalized to unit area. The large fraction at approximately η=1 is due to gamma rays from the beam penetrating through a narrow unshielded region between the barrel and endcap regions of the experiment. Additional shielding was installed in this region between 2011 and 2012 running. L1_MU10 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in the TGC and two-stations in the RPC regions of the L1Muon trigger chambers. .png
 png eps
Changed:
<
<

contact: Will Buttinger
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU11 trigger, with the distribution of the subset of RoIs matched (ΔR<0.2) to an offline reconstructed muon (with a combined inner detector and muon spectrometer track and additional interaction-point parameter cuts to exclude cosmic muons, and pT at least 3 GeV), and offline reconstructed muons with a pT greater than 10 GeV. L1_MU11 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in all regions of the L1Muon trigger chambers. .png
>
>

contact: Will Buttinger
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU11 trigger, with the distribution of the subset of RoIs matched (ΔR<0.2) to an offline reconstructed muon (with a combined inner detector and muon spectrometer track and additional interaction-point parameter cuts to exclude cosmic muons, and pT at least 3 GeV), and offline reconstructed muons with a pT greater than 10 GeV. L1_MU11 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in all regions of the L1Muon trigger chambers. .png
 png eps
Changed:
<
<

contact: Will Buttinger
>
>

contact: Will Buttinger

 

L1 Barrel Muon Trigger Efficiency 2012

L1 Barrel Muon Trigger Efficiency with 2012 Data: ATL-COM-DAQ-2014-007 (February 21, 2014)

Changed:
<
<
border=1 cellpadding=10 cellspacing=10> border=1 cellpadding=10 cellspacing=10> Performance Estimation for Phase-II Level-0/1 Muon Trigger: ATL-COM-DAQ-2014-010 (March 07, 2014) border=1 cellpadding=10 cellspacing=10>
2010 data @ 7 TeV RPC timing border=1 cellpadding=10 cellspacing=10> TGC phase scan border=1 cellpadding=10 cellspacing=10> RPC and TGC rates border=1 cellpadding=10 cellspacing=10> Major updates:
-- JoergStelzer - 13-Jun-2011 Responsible:Main.JoergStelzer
Subject: public

L1 muon barrel trigger efficiency vs. ϕ
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of ϕ, and its comparison with MC data.
The plot shows a lower trigger efficiency in the feet region (around ϕ = -1 and ϕ = -2) where the detector coverage is lower due to the ATLAS mechanical supports. The trigger efficiency is also lower in the small sectors than in the large ones, because of the toroid mechanical structures again affecting the detector coverage.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent triggers based on jets and missing transverse energy.
.png
>
>

L1 muon barrel trigger efficiency vs. ϕ
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of ϕ, and its comparison with MC data.
The plot shows a lower trigger efficiency in the feet region (around ϕ = -1 and ϕ = -2) where the detector coverage is lower due to the ATLAS mechanical supports. The trigger efficiency is also lower in the small sectors than in the large ones, because of the toroid mechanical structures again affecting the detector coverage.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent triggers based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of η, and its comparison with MC data.
The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
>
>
contact: Massimo Corradi, Riccardo Vari

L1 muon barrel trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of η, and its comparison with MC data.
The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari
L1 muon trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon trigger efficiency for the barrel (1.05 < η < 1.05, within the red dotted lines) and end-cap regions, as a function of η, and its comparison to MC data. The barrel low-pT MU10 threshold selects muons with pT > 10 GeV with a coincidence of the two inner RPC stations, while the high-pT MU11 threshold selects muons with pT > 10 GeV with a further coincidence the third outer RPC station. The end-cap MU10 and MU11 thresholds select muons with pT > 10 GeV with a coincidence of three TGC stations.
The plot shows a lower trigger efficiency than the end-cap in some barrel regions, because of the reduced RPC detector coverage where the barrel toroid mechanical structures and the ATLAS feet supports are.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
>
>
contact: Massimo Corradi, Riccardo Vari

L1 muon trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon trigger efficiency for the barrel (1.05 < η < 1.05, within the red dotted lines) and end-cap regions, as a function of η, and its comparison to MC data. The barrel low-pT MU10 threshold selects muons with pT > 10 GeV with a coincidence of the two inner RPC stations, while the high-pT MU11 threshold selects muons with pT > 10 GeV with a further coincidence the third outer RPC station. The end-cap MU10 and MU11 thresholds select muons with pT > 10 GeV with a coincidence of three TGC stations.
The plot shows a lower trigger efficiency than the end-cap in some barrel regions, because of the reduced RPC detector coverage where the barrel toroid mechanical structures and the ATLAS feet supports are.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger turn on curves
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency as a function of pT, for the six trigger thresholds.
MU4, MU6, MU10 are the low-pT thresholds (muons selected with the two inner RPC stations), while MU11, MU15, MU20 are the high-pT thresholds (low-pT muons confirmed with the third outer RPC station).
The lower trigger efficiency for the three high-pT thresholds is due to the reduced RPC detector coverage in the outer planes, due to the ATLAS feet support structure.
The efficiency is measured with offline reconstructed combined muons and an independent trigger based on jets and missing transverse energy.
.png
>
>
contact: Massimo Corradi, Riccardo Vari

L1 muon barrel trigger turn on curves
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency as a function of pT, for the six trigger thresholds.
MU4, MU6, MU10 are the low-pT thresholds (muons selected with the two inner RPC stations), while MU11, MU15, MU20 are the high-pT thresholds (low-pT muons confirmed with the third outer RPC station).
The lower trigger efficiency for the three high-pT thresholds is due to the reduced RPC detector coverage in the outer planes, due to the ATLAS feet support structure.
The efficiency is measured with offline reconstructed combined muons and an independent trigger based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations), as a function of η and ϕ.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
>
>
contact: Massimo Corradi, Riccardo Vari

L1 muon barrel trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations), as a function of η and ϕ.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari
L1 muon trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel and end-cap trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations in the barrel region, and three TGC stations in the end-cap region), as a function of eta and phi.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
>
>
contact: Massimo Corradi, Riccardo Vari

L1 muon trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel and end-cap trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations in the barrel region, and three TGC stations in the end-cap region), as a function of eta and phi.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger Bunch Crossing number distribution for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations).
The plot shows that 99.64% of the L1 barrel events have been tagged with the correct Bunch Crossing number.
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
>
>
contact: Massimo Corradi, Riccardo Vari

L1 muon barrel trigger Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger Bunch Crossing number distribution for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations).
The plot shows that 99.64% of the L1 barrel events have been tagged with the correct Bunch Crossing number.
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel readout Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
RPC timing distribution for trigger hits measured from readout data as a function of time (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing.
One time unit on the X-axis is 1/8 of a BC (3.125 ns).
The plot shows that the RPC barrel hit distribution is within the collision Bunch Crossing, and has a sigma equal to 0.9 ticks (= 2.83 ns).
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
>
>
contact: Massimo Corradi, Riccardo Vari

L1 muon barrel readout Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
RPC timing distribution for trigger hits measured from readout data as a function of time (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing.
One time unit on the X-axis is 1/8 of a BC (3.125 ns).
The plot shows that the RPC barrel hit distribution is within the collision Bunch Crossing, and has a sigma equal to 0.9 ticks (= 2.83 ns).
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari
Distributions of the Run 1 Level-1 muon candidates matched with the tracks reconstructed by a full offline analysis as a function of the inverse of the offline transverse momentum 1/pT and the magnitude of the polar-angle difference |β| of the segments measured by the precision tracking chambers between the outer (middle) and middle (inner) stations in the barrel (endcap). This is the study of the expected Phase-II upgrade performance of a cut on |β| made with a Level-0/1 MDT based muon trigger. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. The events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The candidates are selected by the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter, and a spot mask proposed for the Phase-I or Phase-II upgrade, in the transition region of the barrel and endcap toroidal magnets. .png
>
>
contact: Massimo Corradi, Riccardo Vari

Performance Estimation for Phase-II Level-0/1 Muon Trigger: ATL-COM-DAQ-2014-010 (March 07, 2014)

Distributions of the Run 1 Level-1 muon candidates matched with the tracks reconstructed by a full offline analysis as a function of the inverse of the offline transverse momentum 1/pT and the magnitude of the polar-angle difference |β| of the segments measured by the precision tracking chambers between the outer (middle) and middle (inner) stations in the barrel (endcap). This is the study of the expected Phase-II upgrade performance of a cut on |β| made with a Level-0/1 MDT based muon trigger. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. The events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The candidates are selected by the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter, and a spot mask proposed for the Phase-I or Phase-II upgrade, in the transition region of the barrel and endcap toroidal magnets. .png
 png
Changed:
<
<
eps
.png
>
>
eps
.png
 png eps
Changed:
<
<

contact: Yasuyuki Horii
>
>

contact: Yasuyuki Horii

 Distribution of the Run 1 Level-1 muon candidate's transverse momentum pT for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The distributions are overlaid.
Changed:
<
<
.png
>
>
.png
 png eps
Changed:
<
<

contact: Yasuyuki Horii
>
>

contact: Yasuyuki Horii

 The efficiency of selecting the muon candidates matched with the tracks reconstructed by a full offline analysis for a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade (red dots with error bars) and for a requirement based on the MDT chambers proposed for the Phase-II upgrade (blue open circles with error bars) depending on the offline transverse momentum pT. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The values are relative to an expected condition after the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter.
Changed:
<
<
.png
>
>
.png
 png eps
Changed:
<
<

contact: Yasuyuki Horii
Distribution of the Run 1 Level-1 muon candidate's pseudorapidity ηL1 for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The green (shaded) distribution is obtained by further applying a requirement on the transverse momentum pT reconstructed in a full offline analysis to satisfy pT > 20 GeV. The distributions are overlaid. .png
>
>

contact: Yasuyuki Horii

Distribution of the Run 1 Level-1 muon candidate's pseudorapidity ηL1 for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The green (shaded) distribution is obtained by further applying a requirement on the transverse momentum pT reconstructed in a full offline analysis to satisfy pT > 20 GeV. The distributions are overlaid. .png
 png eps
Changed:
<
<

contact: Yasuyuki Horii
L1 RPC trigger timing
>
>

contact: Yasuyuki Horii


2010 data @ 7 TeV

RPC timing

L1 RPC trigger timing
  Distribution of the trigger time difference of the L1 RPC trigger in units of bunch crossings (BC) with respect to the minimum bias L1
Line: 556 to 904
  accept muon triggers in BC={-2,-1,0} to ensure sufficient statistics for the timing calibration with data. Shown is the calibration obtained with cosmic radiation (black) and the first calibration
Changed:
<
<
obtained with collision data (red).

jpg pdf
L1 RPC low-pt trigger timing
>
>
obtained with collision data (red).


jpg pdf
L1 RPC low-pt trigger timing
  Bunch-Crossing (BC) distribution of the RPC low-pt trigger, from any trigger sector, with respect to the L1A BC trigger before and after a calibration with pp data. The blue dotted line represent the BC
Changed:
<
<
distribution obtained after calibration with cosmic data.

png eps
L1 RPC high-pt trigger timing
>
>
distribution obtained after calibration with cosmic data.


png eps
L1 RPC high-pt trigger timing
  Bunch-Crossing (BC) distribution of the RPC high-pt trigger, from any trigger sector, with respect to the RPC low-pt trigger before
Changed:
<
<
and after calibration with pp data.

png eps
TGC Clock Phase Scan
>
>
and after calibration with pp data.
png eps

TGC phase scan

TGC Clock Phase Scan
  The plot shows the fraction of the TGC hits in the bunch crossing before the colliding bunch as a function of the clock phase shift of the TGC, from which the optimal delay time for the opening gate can
Line: 587 to 955
  chosen to have a sufficient margin to cover the fluctuation of fiber length between LHC and ATLAS by the variation in temperature.
Changed:
<
<

jpgpdf
Result of a clock fine delay scan between the Muon-to-CTP-Interface
>
>

jpg pdf

RPC and TGC rates

Result of a clock fine delay scan between the Muon-to-CTP-Interface
  (MUCTPI) and the sector logic modules of the muon trigger detectors
Changed:
<
<
(RPC and TGC).
>
>
(RPC and TGC).
  The test indirectly measures the relative phase between the incoming muon trigger sector data and the MUCTPI
Line: 601 to 981
  with the current operating point (MUCTPI clock fine delay setting of 3ns), the signals are strobed correctly with no errors and with timing margins of more than +/- 5ns for all 208 sectors.
Changed:
<
<
>
>

  Test procedure: the phase of the MUCTPI clock that strobes the incoming muon sector data is shifted by 0.5ns steps over the full 25ns range, while the sector logic modules are sending a known
Line: 610 to 990
  least one error is shown in the histogram per delay setting. These delay settings with transmission errors, which need to be avoided, cluster far away from the current operating point (delay setting of
Changed:
<
<
3ns) with margins of more than +/- 5ns.

png

png
Rate of each of the RPC (centre lines) and TGC (left and right disks) sectors.
>
>
3ns) with margins of more than +/- 5ns.


png

png
Rate of each of the RPC (centre lines) and TGC (left and right disks) sectors.
  Taken during a run of stable beams, the eight-fold structure of the muon detector can be seen in the RPC, this is harder to see in the TGC due to limited statistics. The numbers on the blue/purple coloured background show the MIOCT slot numbers, showing how these
Changed:
<
<
are linked between TGC and RPC.

png
RPC and TGC rates as a function of transverse momentum threshold
>
>
are linked between TGC and RPC.


png
RPC and TGC rates as a function of transverse momentum threshold
  Shows the rate as a function of PT threshold (y-axis) for each sector (x-axis). The first 4 sectors correspond to the RPC, any gaps
Line: 634 to 1023
  the TGC, where the 4th trigger threshold was not being used. Each plot is one MIOCT board (its slot number gives the position of the detector inputs, as shown in the above plot) and all inputs report
Changed:
<
<
similar rates.

png
>
>
similar rates.


png


Major updates:
-- JoergStelzer - 13-Jun-2011 Responsible: JoergStelzer
Subject: public
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2012-033-fig9.eps" attr="" comment="" date="1338474019" name="ATL-COM-DAQ-2012-033-fig9.eps" path="ATL-COM-DAQ-2012-033-fig9.eps" size="12599" user="will" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2012-033-fig9.png" attr="" comment="" date="1338474019" name="ATL-COM-DAQ-2012-033-fig9.png" path="ATL-COM-DAQ-2012-033-fig9.png" size="13546" user="will" version="1"

Revision 252018-02-16 - MarcoSessa

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 13 to 13
 

2017 data

Added:
>
>

Performance plots for Level1 Barrel Muon Trigger: ATL-COM-DAQ-2018-008 (Feb 16, 2018)

 

Level-1 endcap muon trigger performance in 2016 and 2017: ATL-COM-DAQ-2017-112 (Sep 13, 2017)

Changed:
<
<

Level-1 muon trigger efficiency at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Efficiency of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the offline muon transverse momentum. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. The efficiency is estimated by tag-and-probe method using Z→μμ events. In 2017, look-up-table in the endcap region have been optimized using 2016 data.
.png
>
>
border=1 cellpadding=10 cellspacing=10>
Level-1 muon trigger efficiency at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Efficiency of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the offline muon transverse momentum. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. The efficiency is estimated by tag-and-probe method using Z→μμ events. In 2017, look-up-table in the endcap region have been optimized using 2016 data.
.png
 png pdf
Changed:
<
<
eps

Level-1 muon trigger rate at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Trigger rate of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the instantaneous luminosity. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. In 2017, the overlap region at the barrel feet region and look-up table in the endcap region have been optimized using 2016 data.
.png
>
>
eps
Level-1 muon trigger rate at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Trigger rate of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the instantaneous luminosity. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. In 2017, the overlap region at the barrel feet region and look-up table in the endcap region have been optimized using 2016 data.
.png
 png pdf
Changed:
<
<
eps

>
>
eps
 

Performance plots for Level1 Barrel Muon Trigger: ATL-COM-DAQ-2017-113 (Sep 13, 2017)

Changed:
<
<

Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
>
>
border=1 cellpadding=10 cellspacing=10>
Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
 png pdf
Changed:
<
<
eps

Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
>
>
eps
Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
 png pdf
Changed:
<
<
eps

Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
>
>
eps
Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
 png pdf
Changed:
<
<
eps

Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
>
>
eps
Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
 png pdf
Changed:
<
<
eps

L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η | < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4, MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11, MU20, MU21 with a further coincidence on the outer RPC stations. MU21 threshold is equal to MU20 everywhere but in the “feet” region, where the new feet trigger does not have this threshold. The efficiency is measured using events selected by independent triggers. .png
>
>
eps
L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η | < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4, MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11, MU20, MU21 with a further coincidence on the outer RPC stations. MU21 threshold is equal to MU20 everywhere but in the “feet” region, where the new feet trigger does not have this threshold. The efficiency is measured using events selected by independent triggers. .png
 png pdf
Changed:
<
<
eps

>
>
eps
 

2016 data

Performance plots for Level1 Barrel Muon Trigger ATL-COM-DAQ-2017-035 (May 23, 2017)

Changed:
<
<

Efficiency of Level 1 (L1) MU10 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically
>
>
border=1 cellpadding=10 cellspacing=10>
Efficiency of Level 1 (L1) MU10 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically
 ~0.1%. The plot shows the general stability of the system with data taking and that in some areas the efficiency has increased thanks to fixing inefficient RPC chambers in the winter shutdown between 2015 and 2016. In particular, it shows the drastic efficiency increase (about 20% absolute) in the regions of the detector support structure feet, where new trigger RPC chambers were installed and commissioned by the end of 2015. The MC simulation was tuned with real RPC strip efficiencies measured on 2015 data and is overlaid to show the expectation of 2016 detector conditions. The MC efficiency of totally inefficient strips was set to 50% to be able to rescale if a given element should be repaired in the future.
Changed:
<
<
.png
>
>
.png
 png
Changed:
<
<
eps

Efficiency of Level 1 (L1) MU11 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU11 trigger requires that a candidate passed the 11 GeV threshold requirement of the L1 muon trigger system (using both medium and outer trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically ~0.1%. The plot shows the general stability of the system with data taking and that in some areas the efficiency has increased thanks to fixing inefficient RPC chambers in the winter shutdown between 2015 and 2016. In particular, it shows the drastic efficiency increase (about 20% absolute) in the regions of the detector support structure feet, where new trigger RPC chambers were installed and commissioned by the end of 2015. The MC simulation was tuned with real RPC strip efficiencies measured on 2015 data and is overlaid to show the expectation of 2016 detector conditions. The MC efficiency of totally inefficient strips was set to 50% to be able to rescale if a given element should be repaired in the future. .png
>
>
eps
Efficiency of Level 1 (L1) MU11 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU11 trigger requires that a candidate passed the 11 GeV threshold requirement of the L1 muon trigger system (using both medium and outer trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically ~0.1%. The plot shows the general stability of the system with data taking and that in some areas the efficiency has increased thanks to fixing inefficient RPC chambers in the winter shutdown between 2015 and 2016. In particular, it shows the drastic efficiency increase (about 20% absolute) in the regions of the detector support structure feet, where new trigger RPC chambers were installed and commissioned by the end of 2015. The MC simulation was tuned with real RPC strip efficiencies measured on 2015 data and is overlaid to show the expectation of 2016 detector conditions. The MC efficiency of totally inefficient strips was set to 50% to be able to rescale if a given element should be repaired in the future. .png
 png
Changed:
<
<
eps

>
>
eps
 Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. It is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the drastic efficiency increase (about 20% absolute) introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the regions of the detector supporting structure feet.
Changed:
<
<
.png
>
>
.png
 png
Changed:
<
<
eps

Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.96 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
>
>
eps
Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.96 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
 png
Changed:
<
<
eps

Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.17 < φ(mu at the interaction vertex) < -0.97) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector support structure feet are placed. .png
>
>
eps
Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.17 < φ(mu at the interaction vertex) < -0.97) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector support structure feet are placed. .png
 png
Changed:
<
<
eps

>
>
eps
 

Performance plots for Phase-I upgrades

Performance estimation of the Level-1 Endcap muon trigger by using NSW angle information: ATL-COM-DAQ-2017-022 (May 6, 2017)

Changed:
<
<

>
>
border=1 cellpadding=10 cellspacing=10>
 Distributions of difference in η between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and the track segment position in the New Small Wheel (NSW), and dθ measured at NSW. dθ is defined as dθ = θposition - θtrack, where θposition is the polar angle calculated from the position of the track segment, and θtrack is the polar angle of the track vector. The distributions are obtained by simulation with muon pT = 20 GeV (left), 40 GeV (right). Two peaks are observed in the left figure (pT= 20 GeV) due to the different charges of the muons. In the right figure (pT = 40 GeV), because the pT of the muons are higher, the split of the two peaks are smaller, and therefore they are not resolved.
Changed:
<
<
.png
>
>
| .png
 png pdf
Changed:
<
<
eps
.png
>
>
eps | .png
 png pdf
Changed:
<
<
eps
contact: Shunichi Akatsuka & Junpei Maeda
Relative trigger efficiencies compared to Run-2 Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. The Run-2 L1_MU20 requires position matching of TGC Big Wheel (BW) and the TGC Forward-Inner chamber (FI) at 1.3 < |ηRoI| < 2.4. The efficiencies are measured with offline reconstructed muons, and are shown as a function of the transverse momentum of the muons. Efficiencies with additional coincidence requirements applied to the L1_MU20 are shown by coloured points. The open circle points show the efficiency with New Small Wheel (NSW) coincidence logic using dη-dθ coincidence window, described in ATL-COM-DAQ-2015-142. The open triangle points show the efficiency with NSW coincidence logic using both dη-dφ and dη-dθ coincidence window derived from the simulation study. The track segment finding efficiency in the NSW is assumed to be 97%. .png
>
>
eps | contact: Shunichi Akatsuka & Junpei Maeda ||

Relative trigger efficiencies compared to Run-2 Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. The Run-2 L1_MU20 requires position matching of TGC Big Wheel (BW) and the TGC Forward-Inner chamber (FI) at 1.3 < |ηRoI| < 2.4. The efficiencies are measured with offline reconstructed muons, and are shown as a function of the transverse momentum of the muons. Efficiencies with additional coincidence requirements applied to the L1_MU20 are shown by coloured points. The open circle points show the efficiency with New Small Wheel (NSW) coincidence logic using dη-dθ coincidence window, described in ATL-COM-DAQ-2015-142. The open triangle points show the efficiency with NSW coincidence logic using both dη-dφ and dη-dθ coincidence window derived from the simulation study. The track segment finding efficiency in the NSW is assumed to be 97%. .png
 png pdf eps
Changed:
<
<

contact: Shunichi Akatsuka & Junpei Maeda

pT distributions of offline reconstructed muons matched to a Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. Matching between the offline muon and the L1_MU20 RoI requires dR < 0.5, where dR is calculated from η, φ of the offline muon at I.P. and the central position of the L1_MU20 RoI. The distribution of Run-2 L1_MU20 candidates, generated by the TGC Big Wheel (BW) and TGC Forward-Inner chamber (FI), are collected by pass-through triggers (HLT_noalg_L1MU20), in 2016 data with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including each New Small Wheel (NSW) coincidence logics are estimated by multiplying the relative trigger efficiencies measured by simulation. .png
>
>

contact: Shunichi Akatsuka & Junpei Maeda
pT distributions of offline reconstructed muons matched to a Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. Matching between the offline muon and the L1_MU20 RoI requires dR < 0.5, where dR is calculated from η, φ of the offline muon at I.P. and the central position of the L1_MU20 RoI. The distribution of Run-2 L1_MU20 candidates, generated by the TGC Big Wheel (BW) and TGC Forward-Inner chamber (FI), are collected by pass-through triggers (HLT_noalg_L1MU20), in 2016 data with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including each New Small Wheel (NSW) coincidence logics are estimated by multiplying the relative trigger efficiencies measured by simulation. .png
 png pdf eps
Changed:
<
<

contact: Shunichi Akatsuka & Junpei Maeda

>
>

contact: Shunichi Akatsuka & Junpei Maeda
 

Performance estimation of Level1 endcap muon trigger for Run3: ATL-COM-DAQ-2015-142 (September 20, 2015)

Changed:
<
<

>
>
border=1 cellpadding=10 cellspacing=10>
 Distributions of position differences between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and track segments in the New Small Wheel (NSW). The distributions are obtained by simulations with muon pT = 20 GeV (top), 40 GeV (bottom). Two peaks are observed in the distribution with muon pT = 20 GeV since the position differences depend on muon’s charge. Criteria of the position matching between the BW-RoI and NSW-track for the Level-1 endcap muon trigger for Run3 are defined from these distributions.
Changed:
<
<
.png
>
>
.png
 png
Changed:
<
<
eps
.png
>
>
eps
.png
 png eps
Changed:
<
<

contact: Tomoe Kishimoto

L1_MU20 trigger efficiencies when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) with respect to the trigger efficiency of the TGC Big Wheel (BW) standalone. The track segment finding efficiency in the NSW is assumed to be 97%. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The trigger efficiencies are measured with offline reconstructed muons with 1.3 < |eta| < 2.5, and shown as a function of the transverse momentum of the muons. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
>
>

contact: Tomoe Kishimoto
L1_MU20 trigger efficiencies when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) with respect to the trigger efficiency of the TGC Big Wheel (BW) standalone. The track segment finding efficiency in the NSW is assumed to be 97%. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The trigger efficiencies are measured with offline reconstructed muons with 1.3 < |eta| < 2.5, and shown as a function of the transverse momentum of the muons. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
 png eps
Changed:
<
<

contact: Tomoe Kishimoto

pT distributions of offline reconstructed muons with 1.3 < |eta| < 2.5 matched to a L1_MU20 candidate. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The distribution with L1_MU20 candidates generated by the TGC Big Wheel (BW) standalone are obtained from a data sample collected by pass-through triggers (HLT_noalg_L1MU20) in run276329, which was taken on 16-17 Aug. 2015 with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) are estimated by multiplying the relative trigger efficiencies measured by simulations. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
>
>

contact: Tomoe Kishimoto
pT distributions of offline reconstructed muons with 1.3 < |eta| < 2.5 matched to a L1_MU20 candidate. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The distribution with L1_MU20 candidates generated by the TGC Big Wheel (BW) standalone are obtained from a data sample collected by pass-through triggers (HLT_noalg_L1MU20) in run276329, which was taken on 16-17 Aug. 2015 with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) are estimated by multiplying the relative trigger efficiencies measured by simulations. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
 png eps
Changed:
<
<

contact: Tomoe Kishimoto

>
>

contact: Tomoe Kishimoto
 

2015 data @ 13 TeV

Level 1 Barrel Muon trigger and RPC performance in 2015

Changed:
<
<

RPC trigger coverage
>
>
border=1 cellpadding=10 cellspacing=10>
RPC trigger coverage
 Distribution RPC trigger hits in the pivot layer associated with an high-pT trigger, shown in terms of the η and φ strip coordinates. The black lines indicate the contours of individual RPC chambers. The data set corresponds to pp collisions collected with 25 ns spacing between colliding bunches.
Changed:
<
<

.pdf
png pdf
RPC trigger coverage (in terms of strip index)
>
>
.pdf
png pdf
RPC trigger coverage (in terms of strip index)
 Distribution RPC trigger hits in the pivot layer associated with an high-pT trigger shown in term of the strip index of η and φ strips. The black lines indicate the contour of individual RPC chambers.
Changed:
<
<

.pdf
png pdf
RPC efficiency
>
>
.pdf
png pdf
RPC efficiency
 Distribution of the measured RPC "gap efficiency" of each gas volume, defined by the presence of hits on at least one of the two strip panels (η and φ), and of the "detector efficiency" for each strip panel, defined by the presence of hits in the strip panel. The total number of panels (η + φ) is 8592, the number of gaps is 4296. The efficiency is measured using standalone RPC tracks obtained removing the hits on the unit under test. Trigger biases are removed requiring that the remaining hits satisfy the trigger coincidence.
Changed:
<
<

.pdf
png pdf
RPC dead strips
>
>
.pdf
png pdf
RPC dead strips
 Distribution of the fraction of dead strips per readout panel for both views. Dead strips can originate from different reasons, e.g. readout problems, masking of noisy channels or gas gaps disconnected from HV. The peak at 1 shows that the fraction of readout panels in which all strips are dead is approximately 2%.
Changed:
<
<

.pdf
png pdf
RPC cluster size
>
>
.pdf
png pdf
RPC cluster size
 Distribution of RPC cluster size as measured in readout hits for the η and φ strips.
Changed:
<
<

.pdf
png pdf
Average RPC cluster size per panel
>
>
.pdf
png pdf
Average RPC cluster size per panel
 Distribution of average RPC cluster size for each readout panel for both the η and φ views.
Changed:
<
<

.pdf
png pdf
L1 Barrel Trigger Bunch Crossing identification
>
>
.pdf
png pdf
L1 Barrel Trigger Bunch Crossing identification
 Difference between the event bunch crossing (BC) number identified by the Level-1 Muon Barrel trigger and the collision bunch crossing number, for muons passing reconstructed offline with pT > 15 GeV and passing the corresponding Level-1 threshold MU15. The collision bunch crossing is identified using independent triggers. The plot shows that 99.7% of the L1 barrel events have been tagged with the correct BC number. Data from a single pp collision run at √s = 13 TeV ( Oct 31/Nov 1, LHC fill 4560).
Changed:
<
<

.pdf
png pdf
L1 Barrel Trigger timing
>
>
.pdf
png pdf
L1 Barrel Trigger timing
 RPC hit time distribution for trigger hits, measured from readout data (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing (BC). One time unit on the horizontal axis is 1/8 of a BC (3.125 ns). The horizontal axis covers the readout window in which data are collected that corresponds to 8 BCs. The plot shows that the RPC trigger hit distribution is within the collision BC, and has a sigma equal to 0.94 ticks (= 2.9 ns).
Changed:
<
<

.pdf
png pdf
L1 Barrel Trigger timing per tower
>
>
.pdf
png pdf
L1 Barrel Trigger timing per tower
 Fraction of RPC trigger hits associated correctly to the collision Bunch Crossing for each of the 428 Barrel Muon trigger towers. The red contours show the new trigger towers of the “feet”-chamber upgrade that have been activated at the end of 2015 data taking and have not been yet fully commissioned. One tower with hardware problems (Tower=2, Sector=38) is visible as an orange area. The two white areas (Tower=3, Sector=23, 24, 55, 56) correspond to the “elevator” chambers, not yet commissioned in 2015. Data from pp runs at √s = 5 TeV, integrated luminosity L=28 pb-1.
Changed:
<
<

.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\eta$
L1 muon barrel trigger efficiency for reconstructed muons with $p_T>15$ GeV as a function of η. The efficiency is shown for two thresholds: MU10 (pT > 10 GeV, selected with a coincidence of the two inner RPC stations) and MU11 (pT > 10 GeV selected with a further coincidence with the outer RPC stations). The dashed histograms show the results from a special MC simulation which includes measured efficiencies of the RPC chambers. The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures. The efficiency was measured using events selected by independent triggers.
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\phi$
>
>
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\eta$
L1 muon barrel trigger efficiency for reconstructed muons with $p_T>15$ GeV as a function of η. The efficiency is shown for two thresholds: MU10 (pT > 10 GeV, selected with a coincidence of the two inner RPC stations) and MU11 (pT > 10 GeV selected with a further coincidence with the outer RPC stations). The dashed histograms show the results from a special MC simulation which includes measured efficiencies of the RPC chambers. The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures. The efficiency was measured using events selected by independent triggers.
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\phi$
 L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV as a function of φ. The efficiency is shown for two thresholds: MU10 (pT > 10 GeV, selected with a coincidence of the two inner RPC stations) and MU11 (pT > 10 GeV selected with a further coincidence with the outer RPC stations). The dashed histograms show the results from a special MC simulation which includes measured efficiencies of the RPC chambers. The regions with lower efficiency around φ = -2 and φ = -1 correspond to the “feet” structures that support the ATLAS calorimeters, in which the muon chamber coverage is reduced. The efficiency was measured using events selected by independent triggers.
Changed:
<
<

.pdf
png pdf
L1 Barrel Trigger efficiency as a function of pT
>
>
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of pT
 L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η| < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4,MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11,MU15,MU20 with a further coincidence on the outer RPC stations. The fitted plateau efficiency for MU10 and MU11 is also shown. The efficiency was measured using events selected by independent triggers.
Changed:
<
<

.pdf
png pdf
RPC efficiency with the Z “tag and probe” method
>
>
.pdf
png pdf
RPC efficiency with the Z “tag and probe” method
 The plot shows the distribution of the measured RPC detector efficiencies defined by the positive response of the η strips (similar to Figure 3) measured using reconstructed muons from Z → μ μ decays with the “tag-and-probe method”.
Changed:
<
<

.pdf
png pdf
>
>
.pdf
png pdf
 

Performance of Level1 Endcap FI coincidence in Run2:

Deleted:
<
<

(top) Efficiency of Level1(L1) muon trigger with the pT threshold of 15 GeV (L1_MU15) in the region 1.3 < |η| <1.9, as a function of φ. It is computed with respect to offline muon candidates which are reconstructed using standardATLAS software and are categorized as “combined” muons with tracks in InnerDetector and MuonSpectrometer. It is measured in the Tag-and-Probe method using the Z→μμ candidate events in runs of 13 TeV data taking with 25ns LHC bunch spacing, applying 15 GeV threshold to the offline muons used as probe. Blue and red points show the efficiency [without] and [with] the FI coincidence enabled, respectively. The values “with FI coincidence” are calculated with requiring coincidence flags in the FI chambers. (bottom) Ratio of the efficiency values in the top plot: [with FI] / [without FI]. The values ( ~98% ) shows the efficiency in the same pseudo-rapidity region 1.3 < |η| < 1.9 as in the top plot, which is negligible in the total eta region. .pdf
png pdf
contact: Toshi Sumida
(top) Efficiency of L1_MU15 trigger in the endcap region, as a function of pT of offline muons. It is measured in the Tag-and-Prove method using Z→μμ events. Blue and red points show the efficiency without and with the FI coincidence enabled, respectively. (bottom) Ratio of the absolute trigger efficiency values in the top plot: [with FI] / [without FI], which shows the additional efficiency of the FI coincidence. .pdf
png pdf
contact: Toshi Sumida
 
Changed:
<
<
>
>
border=1 cellpadding=10 cellspacing=10>
(top) Efficiency of Level1(L1) muon trigger with the pT threshold of 15 GeV (L1_MU15) in the region 1.3 < |η| <1.9, as a function of φ. It is computed with respect to offline muon candidates which are reconstructed using standardATLAS software and are categorized as “combined” muons with tracks in InnerDetector and MuonSpectrometer. It is measured in the Tag-and-Probe method using the Z→μμ candidate events in runs of 13 TeV data taking with 25ns LHC bunch spacing, applying 15 GeV threshold to the offline muons used as probe. Blue and red points show the efficiency [without] and [with] the FI coincidence enabled, respectively. The values “with FI coincidence” are calculated with requiring coincidence flags in the FI chambers. (bottom) Ratio of the efficiency values in the top plot: [with FI] / [without FI]. The values ( ~98% ) shows the efficiency in the same pseudo-rapidity region 1.3 < |η| < 1.9 as in the top plot, which is negligible in the total eta region. .pdf
png pdf
contact: Toshi Sumida
(top) Efficiency of L1_MU15 trigger in the endcap region, as a function of pT of offline muons. It is measured in the Tag-and-Prove method using Z→μμ events. Blue and red points show the efficiency without and with the FI coincidence enabled, respectively. (bottom) Ratio of the absolute trigger efficiency values in the top plot: [with FI] / [without FI], which shows the additional efficiency of the FI coincidence. .pdf
png pdf
contact: Toshi Sumida
 (top) η distributions of Region of Interest (RoI) from the L1_MU15 trigger. The number of the entries are normalized with the integrated luminosities in the runs with and without the FI coincidence enabled. (bottom) Reduction on the trigger rate of L1_MU15, calculated in (1-N[with FI]/N[without FI], N: number of entry in each bin). The rate reductions in the regions with no FI chambers are consistent with 0 within the errors, which are computed in the statistics only. The binning for those regions are merged to reduce the visual effect from the statistical fluctuation.
Changed:
<
<

.pdf
png pdf
contact: Toshi Sumida
>
>
.pdf
png pdf
contact: Toshi Sumida
 (top) η distributions of Region of Interest (RoI) from the L1 muon trigger with the pT threshold of 20 GeV (L1_MU20). The number of the entries are normalized with the integrated luminosities in the runs with and without the FI coincidence enabled. (bottom) Reduction on the trigger rate of L1_MU20, calculated in (1-N[with FI]/N[without FI], N: number of entry in each bin). The rate reductions in the regions with no FI chambers are consistent with 0 in the errors, which are computed in the statistics only. The binning for those regions are merged to reduce the visual effect from the statistical fluctuation.
Changed:
<
<

.pdf
png pdf
contact: Toshi Sumida
>
>
.pdf
png pdf
contact: Toshi Sumida
 Trigger rates of the L1_MU15 in the runs with and without the FI coincidence enabled, as functions of the instantaneous luminosity of LHC. The reduction computed from the slope of the linear fitting is 15%.
Changed:
<
<

.pdf
png pdf
contact: Toshi Sumida
>
>
.pdf
png pdf
contact: Toshi Sumida
 Trigger rates of the L1_MU20 in the runs with and without the FI coincidence enabled, as functions of the instantaneous luminosity of LHC. The reduction computed from the slope of the linear fitting is 21%.
Changed:
<
<

.pdf
png pdf
contact: Toshi Sumida
>
>
.pdf
png pdf
contact: Toshi Sumida
 

Trigger rates for muon trigger for Run2: (September 23, 2015)

Deleted:
<
<
The Level 1 rate for the single muon trigger with a pT threshold of 20 GeV versus instantaneous luminosity. The black (red)  points correspond to data recorded with (without) a coincidence between the FI (Forward-Inner) muon layers with the big-wheel of the muon spectrometer. This coincidence removes collision background from secondary interactions in the ATLAS Endcap toroid which produces particles that only traverse the big wheel. These background signals arrive at the big-wheel layer with a delay of approximately 25ns and therefore did not contribute significantly to the muon trigger rate during the 50ns running in Run-1 and Run-2.  The rate reduction due the coincidence is approximately 25%.

.pdf
png pdf
contact: Philipp Fleischmann
 
Added:
>
>
border=1 cellpadding=10 cellspacing=10>
The Level 1 rate for the single muon trigger with a pT threshold of 20 GeV versus instantaneous luminosity. The black (red) points correspond to data recorded with (without) a coincidence between the FI (Forward-Inner) muon layers with the big-wheel of the muon spectrometer. This coincidence removes collision background from secondary interactions in the ATLAS Endcap toroid which produces particles that only traverse the big wheel. These background signals arrive at the big-wheel layer with a delay of approximately 25ns and therefore did not contribute significantly to the muon trigger rate during the 50ns running in Run-1 and Run-2. The rate reduction due the coincidence is approximately 25%.
 
Added:
>
>
.pdf
png pdf
contact: Philipp Fleischmann
 

L1Muon Trigger : 2011-2012

The expected eta-distributions of the LVL1 muon trigger in Run-2: ATL-COM-DAQ-2015-205 (Dec. 2016)

Deleted:
<
<
 
Changed:
<
<
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
>
>
border=1 cellpadding=10 cellspacing=10>
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
 update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.
Changed:
<
<
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
>
>
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
 FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.
Changed:
<
<
The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon. The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a
>
>
The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon. The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a
 transverse momentum of more than 20 GeV.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

Changed:
<
<

.png
>
>
.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino
.png
>
>
pdf

contact: Masaya Ishino
.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino

The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
>
>
pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
 update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.
Changed:
<
<
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
>
>
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
 FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.
Changed:
<
<
The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a
>
>
The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a
 transverse momentum of more than 20 GeV.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

Changed:
<
<
.png
>
>
.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino
.png
>
>
pdf

contact: Masaya Ishino
.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino

The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
>
>
pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
 update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.
Changed:
<
<
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
>
>
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
 FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.
Changed:
<
<
The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon.
>
>
The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon.
  [1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System
Changed:
<
<

.png
>
>
.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino

The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
>
>
pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an
 update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.
Changed:
<
<
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
>
>
The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of
 FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

Changed:
<
<

.png
>
>
.png
 png
Changed:
<
<
pdf

contact: Masaya Ishino

>
>
pdf

contact: Masaya Ishino
 

Performance of the ATLAS Level-1 Trigger: ATL-COM-DAQ-2012-033 (May 02, 2012)

Changed:
<
<

η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU10 trigger, measured in a run from 2011 and a run from 2012. Distributions are individually normalized to unit area. The large fraction at approximately η=1 is due to gamma rays from the beam penetrating through a narrow unshielded region between the barrel and endcap regions of the experiment. Additional shielding was installed in this region between 2011 and 2012 running. L1_MU10 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in the TGC and two-stations in the RPC regions of the L1Muon trigger chambers. .png
>
>
border=1 cellpadding=10 cellspacing=10>
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU10 trigger, measured in a run from 2011 and a run from 2012. Distributions are individually normalized to unit area. The large fraction at approximately η=1 is due to gamma rays from the beam penetrating through a narrow unshielded region between the barrel and endcap regions of the experiment. Additional shielding was installed in this region between 2011 and 2012 running. L1_MU10 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in the TGC and two-stations in the RPC regions of the L1Muon trigger chambers. .png
 png eps
Changed:
<
<

contact: Will Buttinger
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU11 trigger, with the distribution of the subset of RoIs matched (ΔR<0.2) to an offline reconstructed muon (with a combined inner detector and muon spectrometer track and additional interaction-point parameter cuts to exclude cosmic muons, and pT at least 3 GeV), and offline reconstructed muons with a pT greater than 10 GeV. L1_MU11 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in all regions of the L1Muon trigger chambers. .png
>
>

contact: Will Buttinger
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU11 trigger, with the distribution of the subset of RoIs matched (ΔR<0.2) to an offline reconstructed muon (with a combined inner detector and muon spectrometer track and additional interaction-point parameter cuts to exclude cosmic muons, and pT at least 3 GeV), and offline reconstructed muons with a pT greater than 10 GeV. L1_MU11 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in all regions of the L1Muon trigger chambers. .png
 png eps
Changed:
<
<

contact: Will Buttinger

>
>

contact: Will Buttinger
 

L1 Barrel Muon Trigger Efficiency 2012

L1 Barrel Muon Trigger Efficiency with 2012 Data: ATL-COM-DAQ-2014-007 (February 21, 2014)

Changed:
<
<

L1 muon barrel trigger efficiency vs. ϕ
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of ϕ, and its comparison with MC data.
The plot shows a lower trigger efficiency in the feet region (around ϕ = -1 and ϕ = -2) where the detector coverage is lower due to the ATLAS mechanical supports. The trigger efficiency is also lower in the small sectors than in the large ones, because of the toroid mechanical structures again affecting the detector coverage.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent triggers based on jets and missing transverse energy.
.png
>
> border=1 cellpadding=10 cellspacing=10> border=1 cellpadding=10 cellspacing=10> Performance Estimation for Phase-II Level-0/1 Muon Trigger: ATL-COM-DAQ-2014-010 (March 07, 2014) border=1 cellpadding=10 cellspacing=10>
2010 data @ 7 TeV RPC timing border=1 cellpadding=10 cellspacing=10> TGC phase scan border=1 cellpadding=10 cellspacing=10> RPC and TGC rates border=1 cellpadding=10 cellspacing=10> Major updates:
-- JoergStelzer - 13-Jun-2011 Responsible:Main.JoergStelzer
Subject: public

L1 muon barrel trigger efficiency vs. ϕ
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of ϕ, and its comparison with MC data.
The plot shows a lower trigger efficiency in the feet region (around ϕ = -1 and ϕ = -2) where the detector coverage is lower due to the ATLAS mechanical supports. The trigger efficiency is also lower in the small sectors than in the large ones, because of the toroid mechanical structures again affecting the detector coverage.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent triggers based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari

L1 muon barrel trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of η, and its comparison with MC data.
The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
>
>
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of η, and its comparison with MC data.
The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari

L1 muon trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon trigger efficiency for the barrel (1.05 < η < 1.05, within the red dotted lines) and end-cap regions, as a function of η, and its comparison to MC data. The barrel low-pT MU10 threshold selects muons with pT > 10 GeV with a coincidence of the two inner RPC stations, while the high-pT MU11 threshold selects muons with pT > 10 GeV with a further coincidence the third outer RPC station. The end-cap MU10 and MU11 thresholds select muons with pT > 10 GeV with a coincidence of three TGC stations.
The plot shows a lower trigger efficiency than the end-cap in some barrel regions, because of the reduced RPC detector coverage where the barrel toroid mechanical structures and the ATLAS feet supports are.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
>
>
contact: Massimo Corradi, Riccardo Vari
L1 muon trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon trigger efficiency for the barrel (1.05 < η < 1.05, within the red dotted lines) and end-cap regions, as a function of η, and its comparison to MC data. The barrel low-pT MU10 threshold selects muons with pT > 10 GeV with a coincidence of the two inner RPC stations, while the high-pT MU11 threshold selects muons with pT > 10 GeV with a further coincidence the third outer RPC station. The end-cap MU10 and MU11 thresholds select muons with pT > 10 GeV with a coincidence of three TGC stations.
The plot shows a lower trigger efficiency than the end-cap in some barrel regions, because of the reduced RPC detector coverage where the barrel toroid mechanical structures and the ATLAS feet supports are.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari

L1 muon barrel trigger turn on curves
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency as a function of pT, for the six trigger thresholds.
MU4, MU6, MU10 are the low-pT thresholds (muons selected with the two inner RPC stations), while MU11, MU15, MU20 are the high-pT thresholds (low-pT muons confirmed with the third outer RPC station).
The lower trigger efficiency for the three high-pT thresholds is due to the reduced RPC detector coverage in the outer planes, due to the ATLAS feet support structure.
The efficiency is measured with offline reconstructed combined muons and an independent trigger based on jets and missing transverse energy.
.png
>
>
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger turn on curves
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency as a function of pT, for the six trigger thresholds.
MU4, MU6, MU10 are the low-pT thresholds (muons selected with the two inner RPC stations), while MU11, MU15, MU20 are the high-pT thresholds (low-pT muons confirmed with the third outer RPC station).
The lower trigger efficiency for the three high-pT thresholds is due to the reduced RPC detector coverage in the outer planes, due to the ATLAS feet support structure.
The efficiency is measured with offline reconstructed combined muons and an independent trigger based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari

L1 muon barrel trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations), as a function of η and ϕ.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
>
>
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations), as a function of η and ϕ.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari

L1 muon trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel and end-cap trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations in the barrel region, and three TGC stations in the end-cap region), as a function of eta and phi.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
>
>
contact: Massimo Corradi, Riccardo Vari
L1 muon trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel and end-cap trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations in the barrel region, and three TGC stations in the end-cap region), as a function of eta and phi.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari

L1 muon barrel trigger Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger Bunch Crossing number distribution for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations).
The plot shows that 99.64% of the L1 barrel events have been tagged with the correct Bunch Crossing number.
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
>
>
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger Bunch Crossing number distribution for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations).
The plot shows that 99.64% of the L1 barrel events have been tagged with the correct Bunch Crossing number.
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari

L1 muon barrel readout Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
RPC timing distribution for trigger hits measured from readout data as a function of time (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing.
One time unit on the X-axis is 1/8 of a BC (3.125 ns).
The plot shows that the RPC barrel hit distribution is within the collision Bunch Crossing, and has a sigma equal to 0.9 ticks (= 2.83 ns).
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
>
>
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel readout Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
RPC timing distribution for trigger hits measured from readout data as a function of time (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing.
One time unit on the X-axis is 1/8 of a BC (3.125 ns).
The plot shows that the RPC barrel hit distribution is within the collision Bunch Crossing, and has a sigma equal to 0.9 ticks (= 2.83 ns).
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
 png pdfChanged: <
<
contact: Massimo Corradi, Riccardo Vari

Performance Estimation for Phase-II Level-0/1 Muon Trigger: ATL-COM-DAQ-2014-010 (March 07, 2014)

Distributions of the Run 1 Level-1 muon candidates matched with the tracks reconstructed by a full offline analysis as a function of the inverse of the offline transverse momentum 1/pT and the magnitude of the polar-angle difference |β| of the segments measured by the precision tracking chambers between the outer (middle) and middle (inner) stations in the barrel (endcap). This is the study of the expected Phase-II upgrade performance of a cut on |β| made with a Level-0/1 MDT based muon trigger. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. The events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The candidates are selected by the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter, and a spot mask proposed for the Phase-I or Phase-II upgrade, in the transition region of the barrel and endcap toroidal magnets. .png
>
>

contact: Massimo Corradi, Riccardo Vari
Distributions of the Run 1 Level-1 muon candidates matched with the tracks reconstructed by a full offline analysis as a function of the inverse of the offline transverse momentum 1/pT and the magnitude of the polar-angle difference |β| of the segments measured by the precision tracking chambers between the outer (middle) and middle (inner) stations in the barrel (endcap). This is the study of the expected Phase-II upgrade performance of a cut on |β| made with a Level-0/1 MDT based muon trigger. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. The events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The candidates are selected by the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter, and a spot mask proposed for the Phase-I or Phase-II upgrade, in the transition region of the barrel and endcap toroidal magnets. .png
 png
Changed:
<
<
eps
.png
>
>
eps
.png
 png eps
Changed:
<
<

contact: Yasuyuki Horii

>
>

contact: Yasuyuki Horii
 Distribution of the Run 1 Level-1 muon candidate's transverse momentum pT for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The distributions are overlaid.
Changed:
<
<
.png
>
>
.png
 png eps
Changed:
<
<

contact: Yasuyuki Horii

>
>

contact: Yasuyuki Horii
 The efficiency of selecting the muon candidates matched with the tracks reconstructed by a full offline analysis for a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade (red dots with error bars) and for a requirement based on the MDT chambers proposed for the Phase-II upgrade (blue open circles with error bars) depending on the offline transverse momentum pT. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The values are relative to an expected condition after the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter.
Changed:
<
<
.png
>
>
.png
 png eps
Changed:
<
<

contact: Yasuyuki Horii

Distribution of the Run 1 Level-1 muon candidate's pseudorapidity ηL1 for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The green (shaded) distribution is obtained by further applying a requirement on the transverse momentum pT reconstructed in a full offline analysis to satisfy pT > 20 GeV. The distributions are overlaid. .png
>
>

contact: Yasuyuki Horii
Distribution of the Run 1 Level-1 muon candidate's pseudorapidity ηL1 for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The green (shaded) distribution is obtained by further applying a requirement on the transverse momentum pT reconstructed in a full offline analysis to satisfy pT > 20 GeV. The distributions are overlaid. .png
 png eps
Changed:
<
<

contact: Yasuyuki Horii


2010 data @ 7 TeV

RPC timing

L1 RPC trigger timing
>
>

contact: Yasuyuki Horii
L1 RPC trigger timing
  Distribution of the trigger time difference of the L1 RPC trigger in units of bunch crossings (BC) with respect to the minimum bias L1
Line: 904 to 556
  accept muon triggers in BC={-2,-1,0} to ensure sufficient statistics for the timing calibration with data. Shown is the calibration obtained with cosmic radiation (black) and the first calibration
Changed:
<
<
obtained with collision data (red).


jpg pdf
L1 RPC low-pt trigger timing
>
>
obtained with collision data (red).

jpg pdf
L1 RPC low-pt trigger timing
  Bunch-Crossing (BC) distribution of the RPC low-pt trigger, from any trigger sector, with respect to the L1A BC trigger before and after a calibration with pp data. The blue dotted line represent the BC
Changed:
<
<
distribution obtained after calibration with cosmic data.


png eps
L1 RPC high-pt trigger timing
>
>
distribution obtained after calibration with cosmic data.

png eps
L1 RPC high-pt trigger timing
  Bunch-Crossing (BC) distribution of the RPC high-pt trigger, from any trigger sector, with respect to the RPC low-pt trigger before
Changed:
<
<
and after calibration with pp data.
png eps

TGC phase scan

TGC Clock Phase Scan
>
>
and after calibration with pp data.

png eps
TGC Clock Phase Scan
  The plot shows the fraction of the TGC hits in the bunch crossing before the colliding bunch as a function of the clock phase shift of the TGC, from which the optimal delay time for the opening gate can
Line: 955 to 587
  chosen to have a sufficient margin to cover the fluctuation of fiber length between LHC and ATLAS by the variation in temperature.
Changed:
<
<

jpg pdf

RPC and TGC rates

Result of a clock fine delay scan between the Muon-to-CTP-Interface
>
>

jpgpdf
Result of a clock fine delay scan between the Muon-to-CTP-Interface
  (MUCTPI) and the sector logic modules of the muon trigger detectors
Changed:
<
<
(RPC and TGC).
>
>
(RPC and TGC).
  The test indirectly measures the relative phase between the incoming muon trigger sector data and the MUCTPI
Line: 981 to 601
  with the current operating point (MUCTPI clock fine delay setting of 3ns), the signals are strobed correctly with no errors and with timing margins of more than +/- 5ns for all 208 sectors.
Changed:
<
<

>
>
  Test procedure: the phase of the MUCTPI clock that strobes the incoming muon sector data is shifted by 0.5ns steps over the full 25ns range, while the sector logic modules are sending a known
Line: 990 to 610
  least one error is shown in the histogram per delay setting. These delay settings with transmission errors, which need to be avoided, cluster far away from the current operating point (delay setting of
Changed:
<
<
3ns) with margins of more than +/- 5ns.


png

png
Rate of each of the RPC (centre lines) and TGC (left and right disks) sectors.
>
>
3ns) with margins of more than +/- 5ns.

png

png
Rate of each of the RPC (centre lines) and TGC (left and right disks) sectors.
  Taken during a run of stable beams, the eight-fold structure of the muon detector can be seen in the RPC, this is harder to see in the TGC due to limited statistics. The numbers on the blue/purple coloured background show the MIOCT slot numbers, showing how these
Changed:
<
<
are linked between TGC and RPC.


png
RPC and TGC rates as a function of transverse momentum threshold
>
>
are linked between TGC and RPC.

png
RPC and TGC rates as a function of transverse momentum threshold
  Shows the rate as a function of PT threshold (y-axis) for each sector (x-axis). The first 4 sectors correspond to the RPC, any gaps
Line: 1023 to 634
  the TGC, where the 4th trigger threshold was not being used. Each plot is one MIOCT board (its slot number gives the position of the detector inputs, as shown in the above plot) and all inputs report
Changed:
<
<
similar rates.


png


Major updates:
-- JoergStelzer - 13-Jun-2011 Responsible: JoergStelzer
Subject: public
>
>
similar rates.

png
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2012-033-fig9.eps" attr="" comment="" date="1338474019" name="ATL-COM-DAQ-2012-033-fig9.eps" path="ATL-COM-DAQ-2012-033-fig9.eps" size="12599" user="will" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2012-033-fig9.png" attr="" comment="" date="1338474019" name="ATL-COM-DAQ-2012-033-fig9.png" path="ATL-COM-DAQ-2012-033-fig9.png" size="13546" user="will" version="1"

Revision 242017-09-15 - JumpeiMaeda

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 13 to 13
 

2017 data

Changed:
<
<

Performance plots for Level1 Barrel Muon Trigger ATL-COM-DAQ-2017-113 (Sep 13, 2017)

>
>

Level-1 endcap muon trigger performance in 2016 and 2017: ATL-COM-DAQ-2017-112 (Sep 13, 2017)

Level-1 muon trigger efficiency at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Efficiency of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the offline muon transverse momentum. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. The efficiency is estimated by tag-and-probe method using Z→μμ events. In 2017, look-up-table in the endcap region have been optimized using 2016 data.
.png
png pdf eps
Level-1 muon trigger rate at 2016 and 2017 for pT > 20 GeV (L1_MU20)
Trigger rate of the L1_MU20 trigger for 2016 (black) and 2017 (red) are shown as a function of the instantaneous luminosity. The L1_MU20 trigger requires that a candidate passed pT > 20 GeV threshold requirement of the L1 muon trigger system. In 2017, the overlap region at the barrel feet region and look-up table in the endcap region have been optimized using 2016 data.
.png
png pdf eps

Performance plots for Level1 Barrel Muon Trigger: ATL-COM-DAQ-2017-113 (Sep 13, 2017)

 
Line: 245 to 278
 
Changed:
<
<

2015 data

>
>

2015 data @ 13 TeV

 

Level 1 Barrel Muon trigger and RPC performance in 2015

Line: 400 to 433
 
Deleted:
<
<

2015 data @ 13 TeV

 

Performance of Level1 Endcap FI coincidence in Run2:

Line: 1147 to 1178
 
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.eps" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.eps" path="LHCC_Sep2017_turn_on_2017.eps" size="15521" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.pdf" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.pdf" path="LHCC_Sep2017_turn_on_2017.pdf" size="17765" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.png" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.png" path="LHCC_Sep2017_turn_on_2017.png" size="19025" user="dellasta" version="1"
Added:
>
>
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-1.eps" attr="" comment="" date="1505482106" name="ATL-COM-DAQ-2017-112-1.eps" path="ATL-COM-DAQ-2017-112-1.eps" size="18628" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-1.pdf" attr="" comment="" date="1505482109" name="ATL-COM-DAQ-2017-112-1.pdf" path="ATL-COM-DAQ-2017-112-1.pdf" size="18828" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-1.png" attr="" comment="" date="1505482110" name="ATL-COM-DAQ-2017-112-1.png" path="ATL-COM-DAQ-2017-112-1.png" size="22331" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-2.eps" attr="" comment="" date="1505482112" name="ATL-COM-DAQ-2017-112-2.eps" path="ATL-COM-DAQ-2017-112-2.eps" size="13137" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-2.pdf" attr="" comment="" date="1505482113" name="ATL-COM-DAQ-2017-112-2.pdf" path="ATL-COM-DAQ-2017-112-2.pdf" size="18222" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-112-2.png" attr="" comment="" date="1505482114" name="ATL-COM-DAQ-2017-112-2.png" path="ATL-COM-DAQ-2017-112-2.png" size="21191" user="junpei" version="1"

Revision 232017-09-14 - LidiaDellAsta

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 20 to 20
 

Changed:
<
<
Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.
>
>
Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.
 
.png
Line: 42 to 42
 

Changed:
<
<
Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.
>
>
Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using middle trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed.
 
.png

Revision 222017-09-13 - LidiaDellAsta

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 11 to 11
  Approved plots that can be shown by ATLAS speakers at conferences and similar events. Please do not add figures on your own. Contact the responsible project leader in case of questions and/or suggestions. Follow the guidelines on the trigger public results page.
Added:
>
>

2017 data

Performance plots for Level1 Barrel Muon Trigger ATL-COM-DAQ-2017-113 (Sep 13, 2017)

Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
png pdf eps
Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -2.16 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
png pdf eps
Efficiency of Level 1 (L1) MU10 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system, using medium trigger chambers. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
png pdf eps
Efficiency of Level 1 (L1) MU11 trigger in 2017 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.37 < φ(mu at the interaction vertex) < -0.98) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU11 trigger requires that a candidate passed the 10 GeV threshold requirement of the Low-pT L1 muon trigger system, with a coincidence with a High-pT RPC chamber. The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, in 13 TeV data from 2017 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chamber commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
png pdf eps
L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η | < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4, MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11, MU20, MU21 with a further coincidence on the outer RPC stations. MU21 threshold is equal to MU20 everywhere but in the “feet” region, where the new feet trigger does not have this threshold. The efficiency is measured using events selected by independent triggers. .png
png pdf eps
 

2016 data

Performance plots for Level1 Barrel Muon Trigger ATL-COM-DAQ-2017-035 (May 23, 2017)

Line: 1067 to 1132
 
META FILEATTACHMENT attachment="phiLow.eps" attr="" comment="" date="1495536567" name="phiLow.eps" path="phiLow.eps" size="14701" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.pdf" attr="" comment="" date="1495536567" name="phiLow.pdf" path="phiLow.pdf" size="17852" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.png" attr="" comment="" date="1495536567" name="phiLow.png" path="phiLow.png" size="72198" user="dellasta" version="1"
Added:
>
>
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU10.eps" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_MU10.eps" path="LHCC_Sep2017_sec12_MU10.eps" size="20483" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU10.pdf" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_MU10.pdf" path="LHCC_Sep2017_sec12_MU10.pdf" size="18180" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_mu10.png" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_mu10.png" path="LHCC_Sep2017_sec12_mu10.png" size="14528" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU11.eps" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_MU11.eps" path="LHCC_Sep2017_sec12_MU11.eps" size="20501" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_MU11.pdf" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_MU11.pdf" path="LHCC_Sep2017_sec12_MU11.pdf" size="18204" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec12_mu11.png" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec12_mu11.png" path="LHCC_Sep2017_sec12_mu11.png" size="14475" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU10.eps" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec14_MU10.eps" path="LHCC_Sep2017_sec14_MU10.eps" size="20496" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU10.pdf" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec14_MU10.pdf" path="LHCC_Sep2017_sec14_MU10.pdf" size="18256" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_mu10.png" attr="" comment="" date="1505328666" name="LHCC_Sep2017_sec14_mu10.png" path="LHCC_Sep2017_sec14_mu10.png" size="14554" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU11.eps" attr="" comment="" date="1505329815" name="LHCC_Sep2017_sec14_MU11.eps" path="LHCC_Sep2017_sec14_MU11.eps" size="20492" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_MU11.pdf" attr="" comment="" date="1505329815" name="LHCC_Sep2017_sec14_MU11.pdf" path="LHCC_Sep2017_sec14_MU11.pdf" size="18265" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_sec14_mu11.png" attr="" comment="" date="1505329815" name="LHCC_Sep2017_sec14_mu11.png" path="LHCC_Sep2017_sec14_mu11.png" size="14532" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.eps" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.eps" path="LHCC_Sep2017_turn_on_2017.eps" size="15521" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.pdf" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.pdf" path="LHCC_Sep2017_turn_on_2017.pdf" size="17765" user="dellasta" version="1"
META FILEATTACHMENT attachment="LHCC_Sep2017_turn_on_2017.png" attr="" comment="" date="1505329815" name="LHCC_Sep2017_turn_on_2017.png" path="LHCC_Sep2017_turn_on_2017.png" size="19025" user="dellasta" version="1"

Revision 212017-05-23 - LidiaDellAsta

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 13 to 13
 

2016 data

Changed:
<
<

Performance plots for Level1 Barrel Muon Trigger

>
>

Performance plots for Level1 Barrel Muon Trigger ATL-COM-DAQ-2017-035 (May 23, 2017)

 

Revision 202017-05-23 - LidiaDellAsta

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 11 to 11
  Approved plots that can be shown by ATLAS speakers at conferences and similar events. Please do not add figures on your own. Contact the responsible project leader in case of questions and/or suggestions. Follow the guidelines on the trigger public results page.
Added:
>
>

2016 data

Performance plots for Level1 Barrel Muon Trigger

Efficiency of Level 1 (L1) MU10 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically ~0.1%. The plot shows the general stability of the system with data taking and that in some areas the efficiency has increased thanks to fixing inefficient RPC chambers in the winter shutdown between 2015 and 2016. In particular, it shows the drastic efficiency increase (about 20% absolute) in the regions of the detector support structure feet, where new trigger RPC chambers were installed and commissioned by the end of 2015. The MC simulation was tuned with real RPC strip efficiencies measured on 2015 data and is overlaid to show the expectation of 2016 detector conditions. The MC efficiency of totally inefficient strips was set to 50% to be able to rescale if a given element should be repaired in the future. .png
png eps
Efficiency of Level 1 (L1) MU11 trigger in 2015 (blue triangles) and in 2016 (red dots) plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. Z → µµ events from a fully-simulated ATLAS Monte Carlo are also overlaid as reference. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU11 trigger requires that a candidate passed the 11 GeV threshold requirement of the L1 muon trigger system (using both medium and outer trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2015 and 2016 with 25 ns LHC bunch spacing. The statistical uncertainties are typically ~0.1%. The plot shows the general stability of the system with data taking and that in some areas the efficiency has increased thanks to fixing inefficient RPC chambers in the winter shutdown between 2015 and 2016. In particular, it shows the drastic efficiency increase (about 20% absolute) in the regions of the detector support structure feet, where new trigger RPC chambers were installed and commissioned by the end of 2015. The MC simulation was tuned with real RPC strip efficiencies measured on 2015 data and is overlaid to show the expectation of 2016 detector conditions. The MC efficiency of totally inefficient strips was set to 50% to be able to rescale if a given element should be repaired in the future. .png
png eps
Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of φ at the interaction vertex of offline muon candidates in the barrel detector region. It is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV and an absolute pseudo-rapidity lower than 1.05. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the drastic efficiency increase (about 20% absolute) introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the regions of the detector supporting structure feet. .png
png eps
Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.96 < φ(mu at the interaction vertex) < -1.77) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector structure support feet are placed. .png
png eps
Efficiency of Level 1 (L1) MU10 trigger in 2016 including (in green) or excluding (yellow) the newly commissioned trigger chambers in the “feet” region of the ATLAS Muon Spectrometer. The efficiency is plotted as a function of η at the interaction vertex of offline muon candidates in the barrel detector region, for a specific sector (corresponding to -1.17 < φ(mu at the interaction vertex) < -0.97) of the “feet” region of the ATLAS Muon Spectrometer. The efficiency is computed with respect to offline isolated muon candidates which are reconstructed using standard ATLAS software and are required to pass “Medium” quality requirement and have a transverse momentum of at least 15 GeV. The MU10 trigger requires that a candidate passed the 10 GeV threshold requirement of the L1 muon trigger system (using medium trigger chambers). The efficiency is measured on an inclusive sample selected using all non-muon L1 ATLAS triggers, with no background subtraction applied, in 13 TeV data from 2016 with 25 ns LHC bunch spacing. The plot shows the efficiency increase across the pseudo-rapidity range in the ATLAS Barrel Region, introduced by using the new trigger RPC chambers installed and commissioned by the end of 2015 to cover the indicated φ range, corresponding to the detector support structure feet. The efficiency is also made more constant across η, instrumenting the positions where the detector support structure feet are placed. .png
png eps
 

Performance plots for Phase-I upgrades

Line: 989 to 1052
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig3.eps" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig3.eps" path="ATL-COM-DAQ-2017-022-fig3.eps" size="17248" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig3.pdf" attr="" comment="" date="1494155634" name="ATL-COM-DAQ-2017-022-fig3.pdf" path="ATL-COM-DAQ-2017-022-fig3.pdf" size="17375" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig3.png" attr="" comment="" date="1494155634" name="ATL-COM-DAQ-2017-022-fig3.png" path="ATL-COM-DAQ-2017-022-fig3.png" size="26900" user="junpei" version="1"
Added:
>
>
META FILEATTACHMENT attachment="eff_th3_allsec.eps" attr="" comment="" date="1495536527" name="eff_th3_allsec.eps" path="eff_th3_allsec.eps" size="14530" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.pdf" attr="" comment="" date="1495536527" name="eff_th3_allsec.pdf" path="eff_th3_allsec.pdf" size="14747" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_allsec.png" attr="" comment="" date="1495536527" name="eff_th3_allsec.png" path="eff_th3_allsec.png" size="53953" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec12.eps" attr="" comment="" date="1495536527" name="eff_th3_sec12.eps" path="eff_th3_sec12.eps" size="20335" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec12.pdf" attr="" comment="" date="1495536527" name="eff_th3_sec12.pdf" path="eff_th3_sec12.pdf" size="17905" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec12.png" attr="" comment="" date="1495536527" name="eff_th3_sec12.png" path="eff_th3_sec12.png" size="51953" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.eps" attr="" comment="" date="1495536567" name="eff_th3_sec14.eps" path="eff_th3_sec14.eps" size="20350" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.pdf" attr="" comment="" date="1495536567" name="eff_th3_sec14.pdf" path="eff_th3_sec14.pdf" size="17942" user="dellasta" version="1"
META FILEATTACHMENT attachment="eff_th3_sec14.png" attr="" comment="" date="1495536567" name="eff_th3_sec14.png" path="eff_th3_sec14.png" size="51532" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiHi.eps" attr="" comment="" date="1495536567" name="phiHi.eps" path="phiHi.eps" size="14650" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiHi.pdf" attr="" comment="" date="1495536567" name="phiHi.pdf" path="phiHi.pdf" size="17858" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiHi.png" attr="" comment="" date="1495536567" name="phiHi.png" path="phiHi.png" size="75814" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.eps" attr="" comment="" date="1495536567" name="phiLow.eps" path="phiLow.eps" size="14701" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.pdf" attr="" comment="" date="1495536567" name="phiLow.pdf" path="phiLow.pdf" size="17852" user="dellasta" version="1"
META FILEATTACHMENT attachment="phiLow.png" attr="" comment="" date="1495536567" name="phiLow.png" path="phiLow.png" size="72198" user="dellasta" version="1"

Revision 192017-05-07 - JumpeiMaeda

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 11 to 11
  Approved plots that can be shown by ATLAS speakers at conferences and similar events. Please do not add figures on your own. Contact the responsible project leader in case of questions and/or suggestions. Follow the guidelines on the trigger public results page.
Added:
>
>

Performance plots for Phase-I upgrades

Performance estimation of the Level-1 Endcap muon trigger by using NSW angle information: ATL-COM-DAQ-2017-022 (May 6, 2017)

Distributions of difference in η between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and the track segment position in the New Small Wheel (NSW), and dθ measured at NSW. dθ is defined as dθ = θposition - θtrack, where θposition is the polar angle calculated from the position of the track segment, and θtrack is the polar angle of the track vector. The distributions are obtained by simulation with muon pT = 20 GeV (left), 40 GeV (right). Two peaks are observed in the left figure (pT= 20 GeV) due to the different charges of the muons. In the right figure (pT = 40 GeV), because the pT of the muons are higher, the split of the two peaks are smaller, and therefore they are not resolved.
.png
png pdf eps
.png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda
Relative trigger efficiencies compared to Run-2 Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. The Run-2 L1_MU20 requires position matching of TGC Big Wheel (BW) and the TGC Forward-Inner chamber (FI) at 1.3 < |ηRoI| < 2.4. The efficiencies are measured with offline reconstructed muons, and are shown as a function of the transverse momentum of the muons. Efficiencies with additional coincidence requirements applied to the L1_MU20 are shown by coloured points. The open circle points show the efficiency with New Small Wheel (NSW) coincidence logic using dη-dθ coincidence window, described in ATL-COM-DAQ-2015-142. The open triangle points show the efficiency with NSW coincidence logic using both dη-dφ and dη-dθ coincidence window derived from the simulation study. The track segment finding efficiency in the NSW is assumed to be 97%. .png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda
pT distributions of offline reconstructed muons matched to a Level-1 trigger for a single muon with transverse momentum above 20 GeV (L1_MU20), at 1.3 < |ηRoI| < 2.4. Matching between the offline muon and the L1_MU20 RoI requires dR < 0.5, where dR is calculated from η, φ of the offline muon at I.P. and the central position of the L1_MU20 RoI. The distribution of Run-2 L1_MU20 candidates, generated by the TGC Big Wheel (BW) and TGC Forward-Inner chamber (FI), are collected by pass-through triggers (HLT_noalg_L1MU20), in 2016 data with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including each New Small Wheel (NSW) coincidence logics are estimated by multiplying the relative trigger efficiencies measured by simulation. .png
png pdf eps
contact: Shunichi Akatsuka & Junpei Maeda

Performance estimation of Level1 endcap muon trigger for Run3: ATL-COM-DAQ-2015-142 (September 20, 2015)

Distributions of position differences between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and track segments in the New Small Wheel (NSW). The distributions are obtained by simulations with muon pT = 20 GeV (top), 40 GeV (bottom). Two peaks are observed in the distribution with muon pT = 20 GeV since the position differences depend on muon’s charge. Criteria of the position matching between the BW-RoI and NSW-track for the Level-1 endcap muon trigger for Run3 are defined from these distributions. .png
png eps
.png
png eps
contact: Tomoe Kishimoto
L1_MU20 trigger efficiencies when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) with respect to the trigger efficiency of the TGC Big Wheel (BW) standalone. The track segment finding efficiency in the NSW is assumed to be 97%. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The trigger efficiencies are measured with offline reconstructed muons with 1.3 < |eta| < 2.5, and shown as a function of the transverse momentum of the muons. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
pT distributions of offline reconstructed muons with 1.3 < |eta| < 2.5 matched to a L1_MU20 candidate. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The distribution with L1_MU20 candidates generated by the TGC Big Wheel (BW) standalone are obtained from a data sample collected by pass-through triggers (HLT_noalg_L1MU20) in run276329, which was taken on 16-17 Aug. 2015 with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) are estimated by multiplying the relative trigger efficiencies measured by simulations. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
 

2015 data

Level 1 Barrel Muon trigger and RPC performance in 2015

Line: 262 to 368
 
Deleted:
<
<

Performance estimation of Level1 endcap muon trigger for Run3: ATL-COM-DAQ-2015-142 (September 20, 2015)

Distributions of position differences between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and track segments in the New Small Wheel (NSW). The distributions are obtained by simulations with muon pT = 20 GeV (top), 40 GeV (bottom). Two peaks are observed in the distribution with muon pT = 20 GeV since the position differences depend on muon’s charge. Criteria of the position matching between the BW-RoI and NSW-track for the Level-1 endcap muon trigger for Run3 are defined from these distributions. .png
png eps
.png
png eps
contact: Tomoe Kishimoto
L1_MU20 trigger efficiencies when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) with respect to the trigger efficiency of the TGC Big Wheel (BW) standalone. The track segment finding efficiency in the NSW is assumed to be 97%. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The trigger efficiencies are measured with offline reconstructed muons with 1.3 < |eta| < 2.5, and shown as a function of the transverse momentum of the muons. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
pT distributions of offline reconstructed muons with 1.3 < |eta| < 2.5 matched to a L1_MU20 candidate. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The distribution with L1_MU20 candidates generated by the TGC Big Wheel (BW) standalone are obtained from a data sample collected by pass-through triggers (HLT_noalg_L1MU20) in run276329, which was taken on 16-17 Aug. 2015 with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) are estimated by multiplying the relative trigger efficiencies measured by simulations. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
 

L1Muon Trigger : 2011-2012

Line: 922 to 977
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig6.pdf" attr="" comment="" date="1481568019" name="ATL-COM-DAQ-2015-205-fig6.pdf" path="ATL-COM-DAQ-2015-205-fig6.pdf" size="29112" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig6.png" attr="" comment="" date="1481568019" name="ATL-COM-DAQ-2015-205-fig6.png" path="ATL-COM-DAQ-2015-205-fig6.png" size="314008" user="mishino" version="1"
META FILEATTACHMENT attachment="atl-com-daq-2015-205.tar.gz" attr="" comment="" date="1481643093" name="atl-com-daq-2015-205.tar.gz" path="atl-com-daq-2015-205.tar.gz" size="1110112" user="mishino" version="1"
Added:
>
>
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1a.eps" attr="" comment="" date="1494155576" name="ATL-COM-DAQ-2017-022-fig1a.eps" path="ATL-COM-DAQ-2017-022-fig1a.eps" size="19881" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1a.pdf" attr="" comment="" date="1494155576" name="ATL-COM-DAQ-2017-022-fig1a.pdf" path="ATL-COM-DAQ-2017-022-fig1a.pdf" size="16336" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1a.png" attr="" comment="" date="1494155576" name="ATL-COM-DAQ-2017-022-fig1a.png" path="ATL-COM-DAQ-2017-022-fig1a.png" size="18470" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1b.eps" attr="" comment="" date="1494155576" name="ATL-COM-DAQ-2017-022-fig1b.eps" path="ATL-COM-DAQ-2017-022-fig1b.eps" size="17293" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1b.pdf" attr="" comment="" date="1494155576" name="ATL-COM-DAQ-2017-022-fig1b.pdf" path="ATL-COM-DAQ-2017-022-fig1b.pdf" size="15822" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig1b.png" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig1b.png" path="ATL-COM-DAQ-2017-022-fig1b.png" size="17927" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig2.eps" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig2.eps" path="ATL-COM-DAQ-2017-022-fig2.eps" size="13657" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig2.pdf" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig2.pdf" path="ATL-COM-DAQ-2017-022-fig2.pdf" size="16825" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig2.png" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig2.png" path="ATL-COM-DAQ-2017-022-fig2.png" size="21216" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig3.eps" attr="" comment="" date="1494155577" name="ATL-COM-DAQ-2017-022-fig3.eps" path="ATL-COM-DAQ-2017-022-fig3.eps" size="17248" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig3.pdf" attr="" comment="" date="1494155634" name="ATL-COM-DAQ-2017-022-fig3.pdf" path="ATL-COM-DAQ-2017-022-fig3.pdf" size="17375" user="junpei" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2017-022-fig3.png" attr="" comment="" date="1494155634" name="ATL-COM-DAQ-2017-022-fig3.png" path="ATL-COM-DAQ-2017-022-fig3.png" size="26900" user="junpei" version="1"

Revision 182016-12-13 - MasayaIshino

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 921 to 921
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig5.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig5.png" path="ATL-COM-DAQ-2015-205-fig5.png" size="277669" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig6.pdf" attr="" comment="" date="1481568019" name="ATL-COM-DAQ-2015-205-fig6.pdf" path="ATL-COM-DAQ-2015-205-fig6.pdf" size="29112" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig6.png" attr="" comment="" date="1481568019" name="ATL-COM-DAQ-2015-205-fig6.png" path="ATL-COM-DAQ-2015-205-fig6.png" size="314008" user="mishino" version="1"
Added:
>
>
META FILEATTACHMENT attachment="atl-com-daq-2015-205.tar.gz" attr="" comment="" date="1481643093" name="atl-com-daq-2015-205.tar.gz" path="atl-com-daq-2015-205.tar.gz" size="1110112" user="mishino" version="1"

Revision 172016-12-12 - MasayaIshino

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 314 to 314
 
Changed:
<
<

L1Muon Trigger rates 2011-2012

>
>

L1Muon Trigger : 2011-2012

The expected eta-distributions of the LVL1 muon trigger in Run-2: ATL-COM-DAQ-2015-205 (Dec. 2016)

The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.

The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.

The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon. The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a transverse momentum of more than 20 GeV.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

.png
png pdf

contact: Masaya Ishino
.png
png pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.

The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.

The green histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon with a transverse momentum of more than 20 GeV.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

.png
png pdf

contact: Masaya Ishino
.png
png pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.

The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.

The red histogram shows the η distribution of MU20 that are associated with an offline reconstructed muon.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

.png
png pdf

contact: Masaya Ishino
The pseudo-rapidity (η) distributions of the Level-1 muon trigger objects (MU20) as expected in Run 2 are shown (an update of the Fig.43 of the ATLAS TDAQ Phase-1 TDR [1]). They are emulated by using data taken in 2012 at a centerof-mass energy of 8 TeV and a bunch-crossing interval of 25 ns.

The black line shows the η distribution of MU20 in Run 1. The emulated rejection with new Level-1 muon trigger logics of FI-TGC coincidence [1], Tile Calorimeter coincidence [1], and hot RoI mask are shown in white, hatched green, and hatched magenta respectively. The hot RoI masking is applied to small specific regions where a particularly high rate is observed due to a weak magnetic field.

[1] CERN-LHCC-2013-018 (2013), ATLAS Collaboration, Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System

.png
png pdf

contact: Masaya Ishino

 

Performance of the ATLAS Level-1 Trigger: ATL-COM-DAQ-2012-033 (May 02, 2012)

Line: 785 to 909
 
META FILEATTACHMENT attachment="fig_12.png" attr="" comment="" date="1455901018" name="fig_12.png" path="fig_12.png" size="19745" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.pdf" attr="" comment="" date="1455901018" name="fig_13.pdf" path="fig_13.pdf" size="14870" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.png" attr="" comment="" date="1455901018" name="fig_13.png" path="fig_13.png" size="12938" user="dellasta" version="1"
Added:
>
>
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig1.pdf" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig1.pdf" path="ATL-COM-DAQ-2015-205-fig1.pdf" size="35536" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig1.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig1.png" path="ATL-COM-DAQ-2015-205-fig1.png" size="289311" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig2.pdf" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig2.pdf" path="ATL-COM-DAQ-2015-205-fig2.pdf" size="30886" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig2.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig2.png" path="ATL-COM-DAQ-2015-205-fig2.png" size="281038" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig3.pdf" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig3.pdf" path="ATL-COM-DAQ-2015-205-fig3.pdf" size="34916" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig3.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig3.png" path="ATL-COM-DAQ-2015-205-fig3.png" size="501343" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig4.pdf" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig4.pdf" path="ATL-COM-DAQ-2015-205-fig4.pdf" size="30154" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig4.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig4.png" path="ATL-COM-DAQ-2015-205-fig4.png" size="314590" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig5.pdf" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig5.pdf" path="ATL-COM-DAQ-2015-205-fig5.pdf" size="29875" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig5.png" attr="" comment="" date="1481567949" name="ATL-COM-DAQ-2015-205-fig5.png" path="ATL-COM-DAQ-2015-205-fig5.png" size="277669" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig6.pdf" attr="" comment="" date="1481568019" name="ATL-COM-DAQ-2015-205-fig6.pdf" path="ATL-COM-DAQ-2015-205-fig6.pdf" size="29112" user="mishino" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-205-fig6.png" attr="" comment="" date="1481568019" name="ATL-COM-DAQ-2015-205-fig6.png" path="ATL-COM-DAQ-2015-205-fig6.png" size="314008" user="mishino" version="1"

Revision 162016-02-19 - LidiaDellAsta

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 775 to 775
 
META FILEATTACHMENT attachment="fig_07.png" attr="" comment="" date="1455900978" name="fig_07.png" path="fig_07.png" size="17607" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_08.pdf" attr="" comment="" date="1455900978" name="fig_08.pdf" path="fig_08.pdf" size="15540" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_08.png" attr="" comment="" date="1455900978" name="fig_08.png" path="fig_08.png" size="20454" user="dellasta" version="1"
Changed:
<
<
META FILEATTACHMENT attachment="fig_09.pdf" attr="" comment="" date="1455900978" name="fig_09.pdf" path="fig_09.pdf" size="21129" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_09.png" attr="" comment="" date="1455900978" name="fig_09.png" path="fig_09.png" size="17281" user="dellasta" version="1"
>
>
META FILEATTACHMENT attachment="fig_09.pdf" attr="" comment="" date="1455911386" name="fig_09.pdf" path="fig_09.pdf" size="21133" user="dellasta" version="2"
META FILEATTACHMENT attachment="fig_09.png" attr="" comment="" date="1455911411" name="fig_09.png" path="fig_09.png" size="17560" user="dellasta" version="2"
 
META FILEATTACHMENT attachment="fig_10.pdf" attr="" comment="" date="1455900978" name="fig_10.pdf" path="fig_10.pdf" size="19110" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_10.png" attr="" comment="" date="1455900978" name="fig_10.png" path="fig_10.png" size="50454" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_11.pdf" attr="" comment="" date="1455900978" name="fig_11.pdf" path="fig_11.pdf" size="18018" user="dellasta" version="1"

Revision 152016-02-19 - LidiaDellAsta

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 11 to 11
  Approved plots that can be shown by ATLAS speakers at conferences and similar events. Please do not add figures on your own. Contact the responsible project leader in case of questions and/or suggestions. Follow the guidelines on the trigger public results page.
Added:
>
>

2015 data

Level 1 Barrel Muon trigger and RPC performance in 2015

RPC trigger coverage
Distribution RPC trigger hits in the pivot layer associated with an high-pT trigger, shown in terms of the η and φ strip coordinates. The black lines indicate the contours of individual RPC chambers. The data set corresponds to pp collisions collected with 25 ns spacing between colliding bunches.
.pdf
png pdf
RPC trigger coverage (in terms of strip index)
Distribution RPC trigger hits in the pivot layer associated with an high-pT trigger shown in term of the strip index of η and φ strips. The black lines indicate the contour of individual RPC chambers.
.pdf
png pdf
RPC efficiency
Distribution of the measured RPC "gap efficiency" of each gas volume, defined by the presence of hits on at least one of the two strip panels (η and φ), and of the "detector efficiency" for each strip panel, defined by the presence of hits in the strip panel. The total number of panels (η + φ) is 8592, the number of gaps is 4296. The efficiency is measured using standalone RPC tracks obtained removing the hits on the unit under test. Trigger biases are removed requiring that the remaining hits satisfy the trigger coincidence.
.pdf
png pdf
RPC dead strips
Distribution of the fraction of dead strips per readout panel for both views. Dead strips can originate from different reasons, e.g. readout problems, masking of noisy channels or gas gaps disconnected from HV. The peak at 1 shows that the fraction of readout panels in which all strips are dead is approximately 2%.
.pdf
png pdf
RPC cluster size
Distribution of RPC cluster size as measured in readout hits for the η and φ strips.
.pdf
png pdf
Average RPC cluster size per panel
Distribution of average RPC cluster size for each readout panel for both the η and φ views.
.pdf
png pdf
L1 Barrel Trigger Bunch Crossing identification
Difference between the event bunch crossing (BC) number identified by the Level-1 Muon Barrel trigger and the collision bunch crossing number, for muons passing reconstructed offline with pT > 15 GeV and passing the corresponding Level-1 threshold MU15. The collision bunch crossing is identified using independent triggers. The plot shows that 99.7% of the L1 barrel events have been tagged with the correct BC number. Data from a single pp collision run at √s = 13 TeV ( Oct 31/Nov 1, LHC fill 4560).
.pdf
png pdf
L1 Barrel Trigger timing
RPC hit time distribution for trigger hits, measured from readout data (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing (BC). One time unit on the horizontal axis is 1/8 of a BC (3.125 ns). The horizontal axis covers the readout window in which data are collected that corresponds to 8 BCs. The plot shows that the RPC trigger hit distribution is within the collision BC, and has a sigma equal to 0.94 ticks (= 2.9 ns).
.pdf
png pdf
L1 Barrel Trigger timing per tower
Fraction of RPC trigger hits associated correctly to the collision Bunch Crossing for each of the 428 Barrel Muon trigger towers. The red contours show the new trigger towers of the “feet”-chamber upgrade that have been activated at the end of 2015 data taking and have not been yet fully commissioned. One tower with hardware problems (Tower=2, Sector=38) is visible as an orange area. The two white areas (Tower=3, Sector=23, 24, 55, 56) correspond to the “elevator” chambers, not yet commissioned in 2015. Data from pp runs at √s = 5 TeV, integrated luminosity L=28 pb-1.
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\eta$
L1 muon barrel trigger efficiency for reconstructed muons with $p_T>15$ GeV as a function of η. The efficiency is shown for two thresholds: MU10 (pT > 10 GeV, selected with a coincidence of the two inner RPC stations) and MU11 (pT > 10 GeV selected with a further coincidence with the outer RPC stations). The dashed histograms show the results from a special MC simulation which includes measured efficiencies of the RPC chambers. The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures. The efficiency was measured using events selected by independent triggers.
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of $\phi$
L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV as a function of φ. The efficiency is shown for two thresholds: MU10 (pT > 10 GeV, selected with a coincidence of the two inner RPC stations) and MU11 (pT > 10 GeV selected with a further coincidence with the outer RPC stations). The dashed histograms show the results from a special MC simulation which includes measured efficiencies of the RPC chambers. The regions with lower efficiency around φ = -2 and φ = -1 correspond to the “feet” structures that support the ATLAS calorimeters, in which the muon chamber coverage is reduced. The efficiency was measured using events selected by independent triggers.
.pdf
png pdf
L1 Barrel Trigger efficiency as a function of pT
L1 muon barrel trigger efficiency for reconstructed muons with pT > 15 GeV and |η| < 1.05 as a function of transverse momentum. The efficiency is shown for the six Level-1 thresholds: MU4,MU6, MU10 which require a coincidence of the two inner RPC stations, and MU11,MU15,MU20 with a further coincidence on the outer RPC stations. The fitted plateau efficiency for MU10 and MU11 is also shown. The efficiency was measured using events selected by independent triggers.
.pdf
png pdf
RPC efficiency with the Z “tag and probe” method
The plot shows the distribution of the measured RPC detector efficiencies defined by the positive response of the η strips (similar to Figure 3) measured using reconstructed muons from Z → μ μ decays with the “tag-and-probe method”.
.pdf
png pdf
 

2015 data @ 13 TeV

Performance of Level1 Endcap FI coincidence in Run2:

Line: 604 to 759
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig4.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig4.png" path="ATL-COM-DAQ-2015-201-fig4.png" size="31294" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig5.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig5.png" path="ATL-COM-DAQ-2015-201-fig5.png" size="45616" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig6.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig6.png" path="ATL-COM-DAQ-2015-201-fig6.png" size="47459" user="masato" version="1"
Added:
>
>
META FILEATTACHMENT attachment="fig_01.pdf" attr="" comment="" date="1455900633" name="fig_01.pdf" path="fig_01.pdf" size="39152" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_01.png" attr="" comment="" date="1455900633" name="fig_01.png" path="fig_01.png" size="31891" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_02.pdf" attr="" comment="" date="1455900942" name="fig_02.pdf" path="fig_02.pdf" size="40585" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_02.png" attr="" comment="" date="1455900942" name="fig_02.png" path="fig_02.png" size="51382" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_03.pdf" attr="" comment="" date="1455900942" name="fig_03.pdf" path="fig_03.pdf" size="20176" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_03.png" attr="" comment="" date="1455900942" name="fig_03.png" path="fig_03.png" size="22012" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_04.pdf" attr="" comment="" date="1455900942" name="fig_04.pdf" path="fig_04.pdf" size="14591" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_04.png" attr="" comment="" date="1455900942" name="fig_04.png" path="fig_04.png" size="13370" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_05.pdf" attr="" comment="" date="1455900942" name="fig_05.pdf" path="fig_05.pdf" size="19203" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_05.png" attr="" comment="" date="1455900942" name="fig_05.png" path="fig_05.png" size="15941" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_06.pdf" attr="" comment="" date="1455900942" name="fig_06.pdf" path="fig_06.pdf" size="20020" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_06.png" attr="" comment="" date="1455900942" name="fig_06.png" path="fig_06.png" size="16302" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_07.pdf" attr="" comment="" date="1455900978" name="fig_07.pdf" path="fig_07.pdf" size="14746" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_07.png" attr="" comment="" date="1455900978" name="fig_07.png" path="fig_07.png" size="17607" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_08.pdf" attr="" comment="" date="1455900978" name="fig_08.pdf" path="fig_08.pdf" size="15540" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_08.png" attr="" comment="" date="1455900978" name="fig_08.png" path="fig_08.png" size="20454" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_09.pdf" attr="" comment="" date="1455900978" name="fig_09.pdf" path="fig_09.pdf" size="21129" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_09.png" attr="" comment="" date="1455900978" name="fig_09.png" path="fig_09.png" size="17281" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_10.pdf" attr="" comment="" date="1455900978" name="fig_10.pdf" path="fig_10.pdf" size="19110" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_10.png" attr="" comment="" date="1455900978" name="fig_10.png" path="fig_10.png" size="50454" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_11.pdf" attr="" comment="" date="1455900978" name="fig_11.pdf" path="fig_11.pdf" size="18018" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_11.png" attr="" comment="" date="1455900978" name="fig_11.png" path="fig_11.png" size="48418" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_12.pdf" attr="" comment="" date="1455901018" name="fig_12.pdf" path="fig_12.pdf" size="16844" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_12.png" attr="" comment="" date="1455901018" name="fig_12.png" path="fig_12.png" size="19745" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.pdf" attr="" comment="" date="1455901018" name="fig_13.pdf" path="fig_13.pdf" size="14870" user="dellasta" version="1"
META FILEATTACHMENT attachment="fig_13.png" attr="" comment="" date="1455901018" name="fig_13.png" path="fig_13.png" size="12938" user="dellasta" version="1"

Revision 142015-11-30 - MasatoAoki

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 13 to 13
 

2015 data @ 13 TeV

Added:
>
>

Performance of Level1 Endcap FI coincidence in Run2:

(top) Efficiency of Level1(L1) muon trigger with the pT threshold of 15 GeV (L1_MU15) in the region 1.3 < |η| <1.9, as a function of φ. It is computed with respect to offline muon candidates which are reconstructed using standardATLAS software and are categorized as “combined” muons with tracks in InnerDetector and MuonSpectrometer. It is measured in the Tag-and-Probe method using the Z→μμ candidate events in runs of 13 TeV data taking with 25ns LHC bunch spacing, applying 15 GeV threshold to the offline muons used as probe. Blue and red points show the efficiency [without] and [with] the FI coincidence enabled, respectively. The values “with FI coincidence” are calculated with requiring coincidence flags in the FI chambers. (bottom) Ratio of the efficiency values in the top plot: [with FI] / [without FI]. The values ( ~98% ) shows the efficiency in the same pseudo-rapidity region 1.3 < |η| < 1.9 as in the top plot, which is negligible in the total eta region. .pdf
png pdf
contact: Toshi Sumida
(top) Efficiency of L1_MU15 trigger in the endcap region, as a function of pT of offline muons. It is measured in the Tag-and-Prove method using Z→μμ events. Blue and red points show the efficiency without and with the FI coincidence enabled, respectively. (bottom) Ratio of the absolute trigger efficiency values in the top plot: [with FI] / [without FI], which shows the additional efficiency of the FI coincidence. .pdf
png pdf
contact: Toshi Sumida
(top) η distributions of Region of Interest (RoI) from the L1_MU15 trigger. The number of the entries are normalized with the integrated luminosities in the runs with and without the FI coincidence enabled. (bottom) Reduction on the trigger rate of L1_MU15, calculated in (1-N[with FI]/N[without FI], N: number of entry in each bin). The rate reductions in the regions with no FI chambers are consistent with 0 within the errors, which are computed in the statistics only. The binning for those regions are merged to reduce the visual effect from the statistical fluctuation. .pdf
png pdf
contact: Toshi Sumida
(top) η distributions of Region of Interest (RoI) from the L1 muon trigger with the pT threshold of 20 GeV (L1_MU20). The number of the entries are normalized with the integrated luminosities in the runs with and without the FI coincidence enabled. (bottom) Reduction on the trigger rate of L1_MU20, calculated in (1-N[with FI]/N[without FI], N: number of entry in each bin). The rate reductions in the regions with no FI chambers are consistent with 0 in the errors, which are computed in the statistics only. The binning for those regions are merged to reduce the visual effect from the statistical fluctuation. .pdf
png pdf
contact: Toshi Sumida
Trigger rates of the L1_MU15 in the runs with and without the FI coincidence enabled, as functions of the instantaneous luminosity of LHC. The reduction computed from the slope of the linear fitting is 15%. .pdf
png pdf
contact: Toshi Sumida
Trigger rates of the L1_MU20 in the runs with and without the FI coincidence enabled, as functions of the instantaneous luminosity of LHC. The reduction computed from the slope of the linear fitting is 21%. .pdf
png pdf
contact: Toshi Sumida

 

Trigger rates for muon trigger for Run2: (September 23, 2015)

Line: 516 to 592
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig3.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig3.png" path="ATL-COM-DAQ-2015-142-fig3.png" size="25039" user="tomoe" version="1"
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.pdf" attr="" comment="" date="1447238930" name="mu20tbp_vs_lumi.pdf" path="mu20tbp_vs_lumi.pdf" size="222389" user="strom" version="1"
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.png" attr="" comment="" date="1447238930" name="mu20tbp_vs_lumi.png" path="mu20tbp_vs_lumi.png" size="142406" user="strom" version="1"
Added:
>
>
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig1.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig1.pdf" path="ATL-COM-DAQ-2015-201-fig1.pdf" size="27078" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig2.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig2.pdf" path="ATL-COM-DAQ-2015-201-fig2.pdf" size="19343" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig3.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig3.pdf" path="ATL-COM-DAQ-2015-201-fig3.pdf" size="18370" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig4.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig4.pdf" path="ATL-COM-DAQ-2015-201-fig4.pdf" size="18764" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig5.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig5.pdf" path="ATL-COM-DAQ-2015-201-fig5.pdf" size="15192" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig6.pdf" attr="" comment="" date="1448902134" name="ATL-COM-DAQ-2015-201-fig6.pdf" path="ATL-COM-DAQ-2015-201-fig6.pdf" size="15273" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig1.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig1.png" path="ATL-COM-DAQ-2015-201-fig1.png" size="41113" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig2.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig2.png" path="ATL-COM-DAQ-2015-201-fig2.png" size="31202" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig3.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig3.png" path="ATL-COM-DAQ-2015-201-fig3.png" size="30426" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig4.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig4.png" path="ATL-COM-DAQ-2015-201-fig4.png" size="31294" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig5.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig5.png" path="ATL-COM-DAQ-2015-201-fig5.png" size="45616" user="masato" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-201-fig6.png" attr="" comment="" date="1448902152" name="ATL-COM-DAQ-2015-201-fig6.png" path="ATL-COM-DAQ-2015-201-fig6.png" size="47459" user="masato" version="1"

Revision 132015-11-11 - DavidMStrom

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 13 to 13
 

2015 data @ 13 TeV

Changed:
<
<
--++ Trigger rates for muon trigger for Run2: (September 23, 2015)
>
>

Trigger rates for muon trigger for Run2: (September 23, 2015)

 
The Level 1 rate for the single muon trigger with a pT threshold of 20 GeV versus instantaneous luminosity. The black (red)  points correspond to data recorded with (without) a coincidence between the FI (Forward-Inner) muon layers with the big-wheel of the muon spectrometer. This coincidence removes collision background from secondary interactions in the ATLAS Endcap toroid which produces particles that only traverse the big wheel. These background signals arrive at the big-wheel layer with a delay of approximately 25ns and therefore did not contribute significantly to the muon trigger rate during the 50ns running in Run-1 and Run-2.  The rate reduction due the coincidence is approximately 25%.
Changed:
<
<

contact: Tomoe Kishimoto
>
>
.pdf
png pdf
contact: Philipp Fleischmann
 
Line: 509 to 514
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig2.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig2.png" path="ATL-COM-DAQ-2015-142-fig2.png" size="18391" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig3.eps" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig3.eps" path="ATL-COM-DAQ-2015-142-fig3.eps" size="12685" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig3.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig3.png" path="ATL-COM-DAQ-2015-142-fig3.png" size="25039" user="tomoe" version="1"
Added:
>
>
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.pdf" attr="" comment="" date="1447238930" name="mu20tbp_vs_lumi.pdf" path="mu20tbp_vs_lumi.pdf" size="222389" user="strom" version="1"
META FILEATTACHMENT attachment="mu20tbp_vs_lumi.png" attr="" comment="" date="1447238930" name="mu20tbp_vs_lumi.png" path="mu20tbp_vs_lumi.png" size="142406" user="strom" version="1"

Revision 122015-11-10 - DavidMStrom

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 13 to 13
 

2015 data @ 13 TeV

Added:
>
>
--++ Trigger rates for muon trigger for Run2: (September 23, 2015)
The Level 1 rate for the single muon trigger with a pT threshold of 20 GeV versus instantaneous luminosity. The black (red)  points correspond to data recorded with (without) a coincidence between the FI (Forward-Inner) muon layers with the big-wheel of the muon spectrometer. This coincidence removes collision background from secondary interactions in the ATLAS Endcap toroid which produces particles that only traverse the big wheel. These background signals arrive at the big-wheel layer with a delay of approximately 25ns and therefore did not contribute significantly to the muon trigger rate during the 50ns running in Run-1 and Run-2.  The rate reduction due the coincidence is approximately 25%.


contact: Tomoe Kishimoto

 

Performance estimation of Level1 endcap muon trigger for Run3: ATL-COM-DAQ-2015-142 (September 20, 2015)

Revision 112015-09-20 - TomoeKishimoto

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 11 to 11
  Approved plots that can be shown by ATLAS speakers at conferences and similar events. Please do not add figures on your own. Contact the responsible project leader in case of questions and/or suggestions. Follow the guidelines on the trigger public results page.
Added:
>
>

2015 data @ 13 TeV

Performance estimation of Level1 endcap muon trigger for Run3: ATL-COM-DAQ-2015-142 (September 20, 2015)

Distributions of position differences between the Level-1 Region of Interest (RoI) in the TGC Big Wheel (BW) and track segments in the New Small Wheel (NSW). The distributions are obtained by simulations with muon pT = 20 GeV (top), 40 GeV (bottom). Two peaks are observed in the distribution with muon pT = 20 GeV since the position differences depend on muon’s charge. Criteria of the position matching between the BW-RoI and NSW-track for the Level-1 endcap muon trigger for Run3 are defined from these distributions. .png
png eps
.png
png eps
contact: Tomoe Kishimoto
L1_MU20 trigger efficiencies when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) with respect to the trigger efficiency of the TGC Big Wheel (BW) standalone. The track segment finding efficiency in the NSW is assumed to be 97%. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The trigger efficiencies are measured with offline reconstructed muons with 1.3 < |eta| < 2.5, and shown as a function of the transverse momentum of the muons. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
pT distributions of offline reconstructed muons with 1.3 < |eta| < 2.5 matched to a L1_MU20 candidate. L1_MU20 is a Level-1 trigger for a single muon with transverse momentum above 20 GeV. The distribution with L1_MU20 candidates generated by the TGC Big Wheel (BW) standalone are obtained from a data sample collected by pass-through triggers (HLT_noalg_L1MU20) in run276329, which was taken on 16-17 Aug. 2015 with a center-of-mass energy of 13 TeV and a bunch-crossing interval of 25 nsec. The distributions when including the TGC Forward Inner station (FI) or New Small Wheel (NSW) are estimated by multiplying the relative trigger efficiencies measured by simulations. During Run1, only TGC BW was used to generate the Level-1 endcap muon triggers. In Run3 (Run2), a coincidence with NSW (TGC FI) will be introduced to reduce the trigger rate. .png
png eps
contact: Tomoe Kishimoto
 

L1Muon Trigger rates 2011-2012

Performance of the ATLAS Level-1 Trigger: ATL-COM-DAQ-2012-033 (May 02, 2012)

Line: 434 to 485
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig3.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig3.png" path="ATL-COM-DAQ-2014-010-fig3.png" size="19670" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig4.eps" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig4.eps" path="ATL-COM-DAQ-2014-010-fig4.eps" size="24975" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig4.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig4.png" path="ATL-COM-DAQ-2014-010-fig4.png" size="28695" user="yhorii" version="1"
Added:
>
>
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig1a.eps" attr="" comment="" date="1442715639" name="ATL-COM-DAQ-2015-142-fig1a.eps" path="ATL-COM-DAQ-2015-142-fig1a.eps" size="28075" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig1a.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig1a.png" path="ATL-COM-DAQ-2015-142-fig1a.png" size="21961" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig1b.eps" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig1b.eps" path="ATL-COM-DAQ-2015-142-fig1b.eps" size="26557" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig1b.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig1b.png" path="ATL-COM-DAQ-2015-142-fig1b.png" size="21989" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig2.eps" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig2.eps" path="ATL-COM-DAQ-2015-142-fig2.eps" size="11198" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig2.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig2.png" path="ATL-COM-DAQ-2015-142-fig2.png" size="18391" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig3.eps" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig3.eps" path="ATL-COM-DAQ-2015-142-fig3.eps" size="12685" user="tomoe" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2015-142-fig3.png" attr="" comment="" date="1442715640" name="ATL-COM-DAQ-2015-142-fig3.png" path="ATL-COM-DAQ-2015-142-fig3.png" size="25039" user="tomoe" version="1"

Revision 102014-06-03 - YasuyukiHorii

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 14 to 14
 

L1Muon Trigger rates 2011-2012

Performance of the ATLAS Level-1 Trigger: ATL-COM-DAQ-2012-033 (May 02, 2012)

Changed:
<
<
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU10 trigger, measured in a run from 2011 and a run from 2012. Distributions are individually normalized to unit area. The large fraction at approximately η=1 is due to gamma rays from the beam penetrating through a narrow unshielded region between the barrel and endcap regions of the experiment. Additional shielding was installed in this region between 2011 and 2012 running. L1_MU10 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in the TGC and two-stations in the RPC regions of the L1Muon trigger chambers. .png
png eps
contact: Will Buttinger
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU11 trigger, with the distribution of the subset of RoIs matched (ΔR<0.2) to an offline reconstructed muon (with a combined inner detector and muon spectrometer track and additional interaction-point parameter cuts to exclude cosmic muons, and pT at least 3 GeV), and offline reconstructed muons with a pT greater than 10 GeV. L1_MU11 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in all regions of the L1Muon trigger chambers. .png
png eps
contact: Will Buttinger
>
>

η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU10 trigger, measured in a run from 2011 and a run from 2012. Distributions are individually normalized to unit area. The large fraction at approximately η=1 is due to gamma rays from the beam penetrating through a narrow unshielded region between the barrel and endcap regions of the experiment. Additional shielding was installed in this region between 2011 and 2012 running. L1_MU10 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in the TGC and two-stations in the RPC regions of the L1Muon trigger chambers. .png
png eps
contact: Will Buttinger
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU11 trigger, with the distribution of the subset of RoIs matched (ΔR<0.2) to an offline reconstructed muon (with a combined inner detector and muon spectrometer track and additional interaction-point parameter cuts to exclude cosmic muons, and pT at least 3 GeV), and offline reconstructed muons with a pT greater than 10 GeV. L1_MU11 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in all regions of the L1Muon trigger chambers. .png
png eps
contact: Will Buttinger

 

L1 Barrel Muon Trigger Efficiency 2012

L1 Barrel Muon Trigger Efficiency with 2012 Data: ATL-COM-DAQ-2014-007 (February 21, 2014)

Changed:
<
<
L1 muon barrel trigger efficiency vs. Ď•
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of Ď•, and its comparison with MC data.
The plot shows a lower trigger efficiency in the feet region (around Ď• = -1 and Ď• = -2) where the detector coverage is lower due to the ATLAS mechanical supports. The trigger efficiency is also lower in the small sectors than in the large ones, because of the toroid mechanical structures again affecting the detector coverage.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent triggers based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of η, and its comparison with MC data.
The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon trigger efficiency for the barrel (1.05 < η < 1.05, within the red dotted lines) and end-cap regions, as a function of η, and its comparison to MC data. The barrel low-pT MU10 threshold selects muons with pT > 10 GeV with a coincidence of the two inner RPC stations, while the high-pT MU11 threshold selects muons with pT > 10 GeV with a further coincidence the third outer RPC station. The end-cap MU10 and MU11 thresholds select muons with pT > 10 GeV with a coincidence of three TGC stations.
The plot shows a lower trigger efficiency than the end-cap in some barrel regions, because of the reduced RPC detector coverage where the barrel toroid mechanical structures and the ATLAS feet supports are.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger turn on curves
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency as a function of pT, for the six trigger thresholds.
MU4, MU6, MU10 are the low-pT thresholds (muons selected with the two inner RPC stations), while MU11, MU15, MU20 are the high-pT thresholds (low-pT muons confirmed with the third outer RPC station).
The lower trigger efficiency for the three high-pT thresholds is due to the reduced RPC detector coverage in the outer planes, due to the ATLAS feet support structure.
The efficiency is measured with offline reconstructed combined muons and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger efficiency (Ď• vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations), as a function of η and Ď•.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon trigger efficiency (Ď• vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel and end-cap trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations in the barrel region, and three TGC stations in the end-cap region), as a function of eta and phi.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger Bunch Crossing number distribution for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations).
The plot shows that 99.64% of the L1 barrel events have been tagged with the correct Bunch Crossing number.
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel readout Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
RPC timing distribution for trigger hits measured from readout data as a function of time (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing.
One time unit on the X-axis is 1/8 of a BC (3.125 ns).
The plot shows that the RPC barrel hit distribution is within the collision Bunch Crossing, and has a sigma equal to 0.9 ticks (= 2.83 ns).
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
>
>

L1 muon barrel trigger efficiency vs. ϕ
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of ϕ, and its comparison with MC data.
The plot shows a lower trigger efficiency in the feet region (around ϕ = -1 and ϕ = -2) where the detector coverage is lower due to the ATLAS mechanical supports. The trigger efficiency is also lower in the small sectors than in the large ones, because of the toroid mechanical structures again affecting the detector coverage.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent triggers based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the low-pT MU10 threshold (muons with pT > 10 GeV selected with a coincidence of the two inner RPC stations) and the high-pT MU11 threshold (muons with pT > 10 GeV selected with a further coincidence the third outer RPC stations), as a function of η, and its comparison with MC data.
The plot shows a lower trigger efficiency in regions where the detector coverage is lower due to the barrel toroid mechanical structures.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon trigger efficiency vs. η
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon trigger efficiency for the barrel (1.05 < η < 1.05, within the red dotted lines) and end-cap regions, as a function of η, and its comparison to MC data. The barrel low-pT MU10 threshold selects muons with pT > 10 GeV with a coincidence of the two inner RPC stations, while the high-pT MU11 threshold selects muons with pT > 10 GeV with a further coincidence the third outer RPC station. The end-cap MU10 and MU11 thresholds select muons with pT > 10 GeV with a coincidence of three TGC stations.
The plot shows a lower trigger efficiency than the end-cap in some barrel regions, because of the reduced RPC detector coverage where the barrel toroid mechanical structures and the ATLAS feet supports are.
The efficiency is measured with offline reconstructed combined muons of pT > 15 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger turn on curves
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency as a function of pT, for the six trigger thresholds.
MU4, MU6, MU10 are the low-pT thresholds (muons selected with the two inner RPC stations), while MU11, MU15, MU20 are the high-pT thresholds (low-pT muons confirmed with the third outer RPC station).
The lower trigger efficiency for the three high-pT thresholds is due to the reduced RPC detector coverage in the outer planes, due to the ATLAS feet support structure.
The efficiency is measured with offline reconstructed combined muons and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations), as a function of η and ϕ.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon trigger efficiency (ϕ vs. η)
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel and end-cap trigger efficiency for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations in the barrel region, and three TGC stations in the end-cap region), as a function of eta and phi.
Orange and red regions represent lower trigger efficiency, due to the reduced RPC detector geometrical acceptance in the regions where there are toroid mechanical supports. The regions where there are no RPC detectors at all are marked as white.
The efficiency is measured with offline reconstructed combined muons of pT > 10 GeV and an independent trigger based on jets and missing transverse energy.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel trigger Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
L1 muon barrel trigger Bunch Crossing number distribution for the high-pT MU11 threshold (muons with pT > 10 GeV selected with a coincidence of three RPC stations).
The plot shows that 99.64% of the L1 barrel events have been tagged with the correct Bunch Crossing number.
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari
L1 muon barrel readout Bunch Crossing identification
Offline data quality monitoring - LHC fill 3203, 20-21 October 2012.
RPC timing distribution for trigger hits measured from readout data as a function of time (yellow histogram), and its gaussian fit (blue line). The red dotted lines identify the collision Bunch Crossing.
One time unit on the X-axis is 1/8 of a BC (3.125 ns).
The plot shows that the RPC barrel hit distribution is within the collision Bunch Crossing, and has a sigma equal to 0.9 ticks (= 2.83 ns).
Events have been selected with all L1 muon triggers and reconstructed offline muons.
.png
png pdf
contact: Massimo Corradi, Riccardo Vari

 

Performance Estimation for Phase-II Level-0/1 Muon Trigger: ATL-COM-DAQ-2014-010 (March 07, 2014)

Changed: <
<
Distributions of the Run 1 Level-1 muon candidates matched with the tracks reconstructed by a full offline analysis as a function of the inverse of the offline transverse momentum 1/pT and the magnitude of the polar-angle difference |β| of the segments measured by the precision tracking chambers between the outer (middle) and middle (inner) stations in the barrel (endcap). This is the study of the expected Phase-II upgrade performance of a cut on |β| made with a Level-0/1 MDT based muon trigger. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. The events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The candidates are selected by the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter, and a spot mask proposed for the Phase-I or Phase-II upgrade, in the transition region of the barrel and endcap toroidal magnets. .png
png eps
.png
png eps
contact: Yasuyuki Horii
Distribution of the Run 1 Level-1 muon candidate's transverse momentum pT for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The distributions are overlaid. .png
png eps
contact: Yasuyuki Horii
The efficiency of selecting the muon candidates matched with the tracks reconstructed by a full offline analysis for a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade (red dots with error bars) and for a requirement based on the MDT chambers proposed for the Phase-II upgrade (blue open circles with error bars) depending on the offline transverse momentum pT. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The values are relative to an expected condition after the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter. .png
png eps
contact: Yasuyuki Horii
Distribution of the Run 1 Level-1 muon candidate's pseudorapidity ηL1 for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The green (shaded) distribution is obtained by further applying a requirement on the transverse momentum pT reconstructed in a full offline analysis to satisfy pT > 20 GeV. The distributions are overlaid. .png
png eps
contact: Yasuyuki Horii
>
>

Distributions of the Run 1 Level-1 muon candidates matched with the tracks reconstructed by a full offline analysis as a function of the inverse of the offline transverse momentum 1/pT and the magnitude of the polar-angle difference |β| of the segments measured by the precision tracking chambers between the outer (middle) and middle (inner) stations in the barrel (endcap). This is the study of the expected Phase-II upgrade performance of a cut on |β| made with a Level-0/1 MDT based muon trigger. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. The events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The candidates are selected by the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter, and a spot mask proposed for the Phase-I or Phase-II upgrade, in the transition region of the barrel and endcap toroidal magnets. .png
png eps
.png
png eps
contact: Yasuyuki Horii
Distribution of the Run 1 Level-1 muon candidate's transverse momentum pT for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The distributions are overlaid. .png
png eps
contact: Yasuyuki Horii
The efficiency of selecting the muon candidates matched with the tracks reconstructed by a full offline analysis for a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade (red dots with error bars) and for a requirement based on the MDT chambers proposed for the Phase-II upgrade (blue open circles with error bars) depending on the offline transverse momentum pT. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The values are relative to an expected condition after the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap and the extended-barrel tile calorimeter. .png
png eps
contact: Yasuyuki Horii
Distribution of the Run 1 Level-1 muon candidate's pseudorapidity ηL1 for muons matched with the tracks reconstructed by a full offline analysis with various trigger requirements, including the proposed use of the MDT chambers for the Phase-II upgrade. The study is based on a data sample for the LHC fills of 3440-3442 and 3447-3453 taken on 15-16 Dec. 2012 with a center-of-mass energy of 8 TeV and a bunch-crossing interval of 25 nsec. Events are selected by requiring the Level-1 muon trigger with transverse momentum threshold of 20 GeV. The white (unshaded) distribution is obtained by applying the requirements expected for the Phase-I upgrade, based on the precision tracking chambers in the inner station of the endcap (SW) and the extended-barrel tile calorimeter. The red (parallel-hatched) distribution is obtained by further applying a spot mask in the transition region of the barrel and endcap toroidal magnets proposed for the Phase-I or Phase-II upgrade. The blue (cross-hatched) distribution is obtained by further applying a requirement based on the MDT chambers proposed for the Phase-II upgrade. The green (shaded) distribution is obtained by further applying a requirement on the transverse momentum pT reconstructed in a full offline analysis to satisfy pT > 20 GeV. The distributions are overlaid. .png
png eps
contact: Yasuyuki Horii


 

2010 data @ 7 TeV

RPC timing

Deleted: <
<
L1 RPC trigger timing
 Changed: <
<Distribution of the trigger time difference of the L1 RPC trigger in units of bunch crossings (BC) with respect to the minimum bias L1 trigger for collision events containing an offline muon with | eta | <1.05, reconstructed using the muon spectrometer and inner detector data. The L1 RoI to offline matching criteria is DR<0.5. The timing window has been temporarily stretched to accept muon triggers in BC={-2,-1,0} to ensure sufficient statistics for the timing calibration with data. Shown is the calibration obtained with cosmic radiation (black) and the first calibration obtained with collision data (red).

jpg pdf
L1 RPC low-pt trigger timing
Bunch-Crossing (BC) distribution of the RPC low-pt trigger, from any trigger sector, with respect to the L1A BC trigger before and after a calibration with pp data. The blue dotted line represent the BC distribution obtained after calibration with cosmic data.

png eps
L1 RPC high-pt trigger timing
Bunch-Crossing (BC) distribution of the RPC high-pt trigger, from any trigger sector, with respect to the RPC low-pt trigger before and after calibration with pp data.

png eps
>
>

L1 RPC trigger timing

Distribution of the trigger time difference of the L1 RPC trigger in units of bunch crossings (BC) with respect to the minimum bias L1 trigger for collision events containing an offline muon with | eta | <1.05, reconstructed using the muon spectrometer and inner detector data. The L1 RoI to offline matching criteria is DR<0.5. The timing window has been temporarily stretched to accept muon triggers in BC={-2,-1,0} to ensure sufficient statistics for the timing calibration with data. Shown is the calibration obtained with cosmic radiation (black) and the first calibration obtained with collision data (red).


jpg pdf
L1 RPC low-pt trigger timing
Bunch-Crossing (BC) distribution of the RPC low-pt trigger, from any trigger sector, with respect to the L1A BC trigger before and after a calibration with pp data. The blue dotted line represent the BC distribution obtained after calibration with cosmic data.

png eps
L1 RPC high-pt trigger timing
Bunch-Crossing (BC) distribution of the RPC high-pt trigger, from any trigger sector, with respect to the RPC low-pt trigger before and after calibration with pp data.

png eps
 

TGC phase scan

Changed: <
<
TGC Clock Phase Scan
The plot shows the fraction of the TGC hits in the bunch crossing before the colliding bunch as a function of the clock phase shift of the TGC, from which the optimal delay time for the opening gate can be determined. The numerator is the TGC hits in BC={-1}, the denominator is the sum of the TGC hits in BC={-1,0,1} relative to the colliding bunch. A transverse momentum of offline combined muon of greater 5 GeV/c is required. The optimal timing is between -1 nsec and -2 nsec. An adjustment in the TGC timing of -4 nsec is chosen to have a sufficient margin to cover the fluctuation of fiber length between LHC and ATLAS by the variation in temperature.

jpg pdf
>
>

TGC Clock Phase Scan
The plot shows the fraction of the TGC hits in the bunch crossing before the colliding bunch as a function of the clock phase shift of the TGC, from which the optimal delay time for the opening gate can be determined. The numerator is the TGC hits in BC={-1}, the denominator is the sum of the TGC hits in BC={-1,0,1} relative to the colliding bunch. A transverse momentum of offline combined muon of greater 5 GeV/c is required. The optimal timing is between -1 nsec and -2 nsec. An adjustment in the TGC timing of -4 nsec is chosen to have a sufficient margin to cover the fluctuation of fiber length between LHC and ATLAS by the variation in temperature.

jpg pdf
 

RPC and TGC rates

Deleted: <
<
Result of a clock fine delay scan between the Muon-to-CTP-Interface (MUCTPI) and the sector logic modules of the muon trigger detectors (RPC and TGC).
 Changed: <
<The test indirectly measures the relative phase between the incoming muon trigger sector data and the MUCTPI clock. This phase relationship needs to be known in order to safely strobe the incoming data without any errors. The result shows that with the current operating point (MUCTPI clock fine delay setting of 3ns), the signals are strobed correctly with no errors and with timing margins of more than +/- 5ns for all 208 sectors.>
>

Result of a clock fine delay scan between the Muon-to-CTP-Interface (MUCTPI) and the sector logic modules of the muon trigger detectors (RPC and TGC).

The test indirectly measures the relative phase between the incoming muon trigger sector data and the MUCTPI clock. This phase relationship needs to be known in order to safely strobe the incoming data without any errors. The result shows that with the current operating point (MUCTPI clock fine delay setting of 3ns), the signals are strobed correctly with no errors and with timing margins of more than +/- 5ns for all 208 sectors.

Test procedure: the phase of the MUCTPI clock that strobes the incoming muon sector data is shifted by 0.5ns steps over the full 25ns range, while the sector logic modules are sending a known repetitive test pattern. For each delay step, the data transmission is checked using diagnostics memories. The number of sectors with at least one error is shown in the histogram per delay setting. These delay settings with transmission errors, which need to be avoided, cluster far away from the current operating point (delay setting of 3ns) with margins of more than +/- 5ns.


png

png
Rate of each of the RPC (centre lines) and TGC (left and right disks) sectors.

Taken during a run of stable beams, the eight-fold structure of the muon detector can be seen in the RPC, this is harder to see in the TGC due to limited statistics. The numbers on the blue/purple coloured background show the MIOCT slot numbers, showing how these are linked between TGC and RPC.


png
RPC and TGC rates as a function of transverse momentum threshold

Shows the rate as a function of PT threshold (y-axis) for each sector (x-axis). The first 4 sectors correspond to the RPC, any gaps appear due to limited statistics. Each threshold can have 2 candidates and there is also a total. The remaining sectors are for the TGC, where the 4th trigger threshold was not being used. Each plot is one MIOCT board (its slot number gives the position of the detector inputs, as shown in the above plot) and all inputs report similar rates.


png
 Deleted: <
<Test procedure: the phase of the MUCTPI clock that strobes the incoming muon sector data is shifted by 0.5ns steps over the full 25ns range, while the sector logic modules are sending a known repetitive test pattern. For each delay step, the data transmission is checked using diagnostics memories. The number of sectors with at least one error is shown in the histogram per delay setting. These delay settings with transmission errors, which need to be avoided, cluster far away from the current operating point (delay setting of 3ns) with margins of more than +/- 5ns.

png

png
Rate of each of the RPC (centre lines) and TGC (left and right disks) sectors.
 Deleted: <
<Taken during a run of stable beams, the eight-fold structure of the muon detector can be seen in the RPC, this is harder to see in the TGC due to limited statistics. The numbers on the blue/purple coloured background show the MIOCT slot numbers, showing how these are linked between TGC and RPC.

png
RPC and TGC rates as a function of transverse momentum threshold
 Deleted: <
<Shows the rate as a function of PT threshold (y-axis) for each sector (x-axis). The first 4 sectors correspond to the RPC, any gaps appear due to limited statistics. Each threshold can have 2 candidates and there is also a total. The remaining sectors are for the TGC, where the 4th trigger threshold was not being used. Each plot is one MIOCT board (its slot number gives the position of the detector inputs, as shown in the above plot) and all inputs report similar rates.

png
 Deleted: <
<
 Changed: <
<Major updates:
-- JoergStelzer - 13-Jun-2011 >
>
Major updates:
-- JoergStelzer - 13-Jun-2011 Responsible: %REVINFO{"$wikiusername" rev="1.1"}%
Subject: public
Line: 81 to 428 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig1a.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig1a.png" path="ATL-COM-DAQ-2014-010-fig1a.png" size="25706" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig1b.eps" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig1b.eps" path="ATL-COM-DAQ-2014-010-fig1b.eps" size="46190" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig1b.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig1b.png" path="ATL-COM-DAQ-2014-010-fig1b.png" size="26248" user="yhorii" version="1"
Changed: <
<
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig2.eps" attr="" comment="" date="1401773155" name="ATL-COM-DAQ-2014-010-fig2.eps" path="ATL-COM-DAQ-2014-010-fig2.eps" size="17519" user="yhorii" version="2"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig2.png" attr="" comment="" date="1401773181" name="ATL-COM-DAQ-2014-010-fig2.png" path="ATL-COM-DAQ-2014-010-fig2.png" size="36957" user="yhorii" version="2"
>
>
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig2.eps" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig2.eps" path="ATL-COM-DAQ-2014-010-fig2.eps" size="17519" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig2.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig2.png" path="ATL-COM-DAQ-2014-010-fig2.png" size="37388" user="yhorii" version="1"
 
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig3.eps" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig3.eps" path="ATL-COM-DAQ-2014-010-fig3.eps" size="10358" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig3.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig3.png" path="ATL-COM-DAQ-2014-010-fig3.png" size="19670" user="yhorii" version="1"
Changed: <
<
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig4.eps" attr="" comment="" date="1401773233" name="ATL-COM-DAQ-2014-010-fig4.eps" path="ATL-COM-DAQ-2014-010-fig4.eps" size="24972" user="yhorii" version="2"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig4.png" attr="" comment="" date="1401773254" name="ATL-COM-DAQ-2014-010-fig4.png" path="ATL-COM-DAQ-2014-010-fig4.png" size="28345" user="yhorii" version="2"
>
>
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig4.eps" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig4.eps" path="ATL-COM-DAQ-2014-010-fig4.eps" size="24975" user="yhorii" version="1"
META FILEATTACHMENT attachment="ATL-COM-DAQ-2014-010-fig4.png" attr="" comment="" date="1394202000" name="ATL-COM-DAQ-2014-010-fig4.png" path="ATL-COM-DAQ-2014-010-fig4.png" size="28695" user="yhorii" version="1"

Revision 92014-06-03 - YasuyukiHorii

Line: 1 to 1
 
META TOPICPARENT name="TriggerPublicResults"
AtlasPublicTopicHeader.png
Line: 14 to 14
 

L1Muon Trigger rates 2011-2012

Performance of the ATLAS Level-1 Trigger: ATL-COM-DAQ-2012-033 (May 02, 2012)

Changed:
<
<

η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU10 trigger, measured in a run from 2011 and a run from 2012. Distributions are individually normalized to unit area. The large fraction at approximately η=1 is due to gamma rays from the beam penetrating through a narrow unshielded region between the barrel and endcap regions of the experiment. Additional shielding was installed in this region between 2011 and 2012 running. L1_MU10 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in the TGC and two-stations in the RPC regions of the L1Muon trigger chambers. .png
png eps
contact: Will Buttinger
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU11 trigger, with the distribution of the subset of RoIs matched (ΔR<0.2) to an offline reconstructed muon (with a combined inner detector and muon spectrometer track and additional interaction-point parameter cuts to exclude cosmic muons, and pT at least 3 GeV), and offline reconstructed muons with a pT greater than 10 GeV. L1_MU11 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in all regions of the L1Muon trigger chambers. .png
png eps
contact: Will Buttinger

>
>
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU10 trigger, measured in a run from 2011 and a run from 2012. Distributions are individually normalized to unit area. The large fraction at approximately η=1 is due to gamma rays from the beam penetrating through a narrow unshielded region between the barrel and endcap regions of the experiment. Additional shielding was installed in this region between 2011 and 2012 running. L1_MU10 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in the TGC and two-stations in the RPC regions of the L1Muon trigger chambers. .png
png eps
contact: Will Buttinger
η distribution of Level-1 Regions of Interest (RoIs) passing the L1_MU11 trigger, with the distribution of the subset of RoIs matched (ΔR<0.2) to an offline reconstructed muon (with a combined inner detector and muon spectrometer track and additional interaction-point parameter cuts to exclude cosmic muons, and pT at least 3 GeV), and offline reconstructed muons with a pT greater than 10 GeV. L1_MU11 is a trigger for a single muon with transverse momentum above 10GeV, requiring a coincidence of hits across three-stations in all regions of the L1Muon trigger chambers. .png
png eps
contact: Will Buttinger
 

L1 Barrel Muon Trigger Efficiency 2012