Difference: ApprovedPlotsTileUpgrade (1 vs. 5)

Revision 52018-06-27 - RomainMadar

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META TOPICPARENT name="TileCaloPublicResults"
AtlasPublicTopicHeader.png
Line: 12 to 12
 

Upgrade

Changed:
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<
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>

Energy distribution measured by FATALIC in test beam conditions. The charge Q is the sum of energies measured by two cells (four PMTs), corresponding to a retro-projective tower with 0.3<|η|<0.40.3<|η|<0.4. The scale is approximately 1 GeV for 1 pC.

Contacts: romain.madar@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2018-033
Date: 20th June 2018

FATALIC_TB.png
[pdf]
Simulated energy resolution at the cell level for different pile-up scenarios. The cell energy $E^{cell}_{True}$ is the true energy deposited in the cell by in-time particles (not from pile-up). The jump at 200 GeV corresponds to low gain samples, mostly dominated by electronic noise.

Contacts: romain.madar@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2018-034
Date: 20th June 2018

FATALIC_PUreso.png
[pdf]
  Muon detection efficiency of the Level-1 Tile-Muon Trigger as a function of TileCal cell energy sum threshold. Results were obtained in proton-proton collision at √s = 13 TeV data collected during run 304337 of the 2016 data period. Tile Muon Digitizer Board (TMDB) has been designed to process (receive and digitize) the data coming from D-Layer channels of the TileCal extended barrel, estimate energy with Matched-Filter and apply threshold. The result is sent to the TGC Sector-Logic Boards. The efficiency denominator consists «good muons» selected by the TGC trigger (1.0 < |η| < 1.3, pT threshold = 6 ) and offline muon selections (pT_muon > 15 GeV, MuonType = combined, dR = √( (eta_trig - eta_muon)^2 + (phi_trig - phi_muon)^2 ) < 0.1). In the numerator - the quantity of «good muons» where one TGC sector (48 sectors) coincident with one of the two TileCal Modules (64 modules), which energy is higher than the threshold, using special pre-defined mapping between TGC Trigger sector number and Tile Module number. The "emulation" for taking coincidence is performed on software (not hardware). Using information of D5+D6 Tile outer radius cells of the extended barrel covering 1.0 < |η| < 1.3 and a threshold cut of 500 MeV (dashed line), a muon detection efficiency of 98.2% is achieved.
Line: 159 to 186
 
META FILEATTACHMENT attachment="efficiency.png" attr="" comment="TMDB Plots for poster TWEPP 2016" date="1474306177" name="efficiency.png" path="efficiency.png" size="120780" user="aryzhov" version="1"
META FILEATTACHMENT attachment="NoiseMap.pdf" attr="" comment="TMDB Plots for poster TWEPP 2016" date="1474306177" name="NoiseMap.pdf" path="NoiseMap.pdf" size="41321" user="aryzhov" version="1"
META FILEATTACHMENT attachment="NoiseMap.png" attr="" comment="TMDB Plots for poster TWEPP 2016" date="1474306177" name="NoiseMap.png" path="NoiseMap.png" size="105373" user="aryzhov" version="1"
Added:
>
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META FILEATTACHMENT attachment="FATALIC_TB.pdf" attr="" comment="" date="1530086390" name="FATALIC_TB.pdf" path="FATALIC_TB.pdf" size="26634" user="rmadar" version="1"
META FILEATTACHMENT attachment="FATALIC_TB.png" attr="" comment="" date="1530086390" name="FATALIC_TB.png" path="FATALIC_TB.png" size="68705" user="rmadar" version="1"
META FILEATTACHMENT attachment="FATALIC_PUreso.png" attr="" comment="" date="1530086597" name="FATALIC_PUreso.png" path="FATALIC_PUreso.png" size="134803" user="rmadar" version="1"
META FILEATTACHMENT attachment="FATALIC_PUreso.pdf" attr="" comment="" date="1530086598" name="FATALIC_PUreso.pdf" path="FATALIC_PUreso.pdf" size="167748" user="rmadar" version="1"

Revision 42016-09-22 - AndreyRyzhov

Line: 1 to 1
 
META TOPICPARENT name="TileCaloPublicResults"
AtlasPublicTopicHeader.png
Line: 12 to 12
 

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Changed:
<
<
Muon detection efficiency and L1_MU20 (see the text) rate reduction as a function of TileCal cell energy sum threshold. Rate reduction is also shown, the probability that in each bunch crossing the sum of the energies deposited in D5 and D6 will be over threshold, given that there is no offline combined muon. Results were obtained using standard offline read-out data. A smearing of 200 MeV was introduced in the response of each cell to simulate the electronics noise of the Level-1 read-out.
Contact: Toshi Sumida
Reference: ATL-COM-TILECAL-2013-039
Date: September 2013

PDF
Muon detection efficiency and background reduction using a prototype receiver module connected to the Level-1 calorimeter trigger electronics. In 2012 data, 50 ns runs are used to collect enough good muon tracks, 25 ns runs are taken to calculate the fake trigger rate with the slow particles coming from the previous bunch.
Contact: Toshi Sumida
Reference: ATL-COM-TILECAL-2013-039
Date: September 2013

PDF
The scope of the TileCal electronic upgrades for phase 2 is to digitize all the calorimeter signals at 40MHz and transmit all the samples to pipeline memories in the off-detector electronics. The trigger will profit from the continuous stream of samples to deal with pile-up and the full radial granularity of the detector. These plot shows the jet efficiency for a Level-1 jet trigger item: L1_J20 (L1_J40 and L1_J70, respectively), currently in use (jet window of 8x8 Trigger Towers and ET>20 GeV (ET>40 GeV and ET>70, respectively) with 1 GeV Trigger Tower precision) and for a jet trigger item planned for phase-2 (jet window of 8x8 Trigger Towers and ET>20 GeV (ET>40 GeV and ET>70 GeV, respectively) with offline cell energy precision (~20 MeV, at the cell noise level precision) to build the TileCal Trigger Towers, while the EM LAr Trigger Towers are taken with the current 1 GeV precision) versus the offline jet pT in GeV, also called turn-on efficiency curves. There is no difference between both L1_J20 turn-on curves, this is due to the fact that we include low energy jets, which don't deposit almost energy at the Tile Calorimeter. However, there is a difference between both L1_J40 (L1_J70) turn-on curves, this is due to include larger jet energies, which deposit larger energies at the Tile Calorimeter and check the impact of the TileCal Trigger Towers with higher precision. The L1_J40 (L1_J70) turn-on curve with offline cell energy precision (planned for phase-2) from 10% to 90% of jet efficiency is ~9% (~12.5%) more narrow than with the current system.
These distributions correspond to all TileCal Trigger Towers: 0<|η|<1.37 and 1.52<|η|<1.7.

Jet offline selection cuts and trigger matching:
Offline jet: pT >30GeV, 0<|η|<1.37 & 1.52<|η|<1.7
Event Filter (EF) jet trigger: ΔR (offline, EF trigger)<0.4 & passed EF_j40
L1 jet trigger: ΔR (offline, L1 trigger)<0.4 & ET (8x8 TTs) > 20 (40 and 70, respectively) GeV.

In this particular case, for all L1 jet trigger items is used the EF_j40 as Event Filter jet trigger, which corresponds to the trigger chain: EF_j40->L2_j35->L1_J20. Since there is only one more EF trigger item: EF_j300, which is too high for this study.
A Monte Carlo data sample has been used for this study:
mc10_14TeV.105568.ttbar_Pythia.recon.ESD.e662_s1107_d459_r2037
which contains 10k events with <μ> ~ 46.

Contact: lmarch@cern.ch
Reference: ATLAS Tile weekly operations meeting (22/04/13) ATLAS-PLOT-TILECAL-2013-004
Date: 2nd May 2013
L1_J20_prelim.png
[pdf]
L1_J40_prelim.png
[pdf]
L1_J70_prelim.png
[pdf]
>
>

Muon detection efficiency of the Level-1 Tile-Muon Trigger as a function of TileCal cell energy sum threshold. Results were obtained in proton-proton collision at √s = 13 TeV data collected during run 304337 of the 2016 data period. Tile Muon Digitizer Board (TMDB) has been designed to process (receive and digitize) the data coming from D-Layer channels of the TileCal extended barrel, estimate energy with Matched-Filter and apply threshold. The result is sent to the TGC Sector-Logic Boards. The efficiency denominator consists «good muons» selected by the TGC trigger (1.0 < |η| < 1.3, pT threshold = 6 ) and offline muon selections (pT_muon > 15 GeV, MuonType = combined, dR = √( (eta_trig - eta_muon)^2 + (phi_trig - phi_muon)^2 ) < 0.1). In the numerator - the quantity of «good muons» where one TGC sector (48 sectors) coincident with one of the two TileCal Modules (64 modules), which energy is higher than the threshold, using special pre-defined mapping between TGC Trigger sector number and Tile Module number. The "emulation" for taking coincidence is performed on software (not hardware). Using information of D5+D6 Tile outer radius cells of the extended barrel covering 1.0 < |η| < 1.3 and a threshold cut of 500 MeV (dashed line), a muon detection efficiency of 98.2% is achieved.

Contacts: andrey.ryzhov@SPAMNOTcern.ch and dayane.oliveira.goncalves@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2016-033
Date: 19th September 2016

efficiency.png
[pdf]

The calibration of TMDB output (estimated by Matched-Filter, Arbitrary Units) for EBC03 channel D5L to convert the value to MeV. The calibration constants are computed through a linear fit based on the TileCal channel energy (in MeV) reconstructed offline. Results were obtained in proton-proton collision at √s = 13 TeV data collected during run 304178 of the 2016 data period.

Contacts: andrey.ryzhov@SPAMNOTcern.ch and dayane.oliveira.goncalves@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2016-033
Date: 19th September 2016

Calibration.png
[pdf]
Muon detection efficiency and L1_MU20 (see the text) rate reduction as a function of TileCal cell energy sum threshold. Rate reduction is also shown, the probability that in each bunch crossing the sum of the energies deposited in D5 and D6 will be over threshold, given that there is no offline combined muon. Results were obtained using standard offline read-out data. A smearing of 200 MeV was introduced in the response of each cell to simulate the electronics noise of the Level-1 read-out.
Contact: Toshi Sumida
Reference: ATL-COM-TILECAL-2013-039
Date: September 2013

PDF
Muon detection efficiency and background reduction using a prototype receiver module connected to the Level-1 calorimeter trigger electronics. In 2012 data, 50 ns runs are used to collect enough good muon tracks, 25 ns runs are taken to calculate the fake trigger rate with the slow particles coming from the previous bunch.
Contact: Toshi Sumida
Reference: ATL-COM-TILECAL-2013-039
Date: September 2013

PDF
The scope of the TileCal electronic upgrades for phase 2 is to digitize all the calorimeter signals at 40MHz and transmit all the samples to pipeline memories in the off-detector electronics. The trigger will profit from the continuous stream of samples to deal with pile-up and the full radial granularity of the detector. These plot shows the jet efficiency for a Level-1 jet trigger item: L1_J20 (L1_J40 and L1_J70, respectively), currently in use (jet window of 8x8 Trigger Towers and ET>20 GeV (ET>40 GeV and ET>70, respectively) with 1 GeV Trigger Tower precision) and for a jet trigger item planned for phase-2 (jet window of 8x8 Trigger Towers and ET>20 GeV (ET>40 GeV and ET>70 GeV, respectively) with offline cell energy precision (~20 MeV, at the cell noise level precision) to build the TileCal Trigger Towers, while the EM LAr Trigger Towers are taken with the current 1 GeV precision) versus the offline jet pT in GeV, also called turn-on efficiency curves. There is no difference between both L1_J20 turn-on curves, this is due to the fact that we include low energy jets, which don't deposit almost energy at the Tile Calorimeter. However, there is a difference between both L1_J40 (L1_J70) turn-on curves, this is due to include larger jet energies, which deposit larger energies at the Tile Calorimeter and check the impact of the TileCal Trigger Towers with higher precision. The L1_J40 (L1_J70) turn-on curve with offline cell energy precision (planned for phase-2) from 10% to 90% of jet efficiency is ~9% (~12.5%) more narrow than with the current system.
These distributions correspond to all TileCal Trigger Towers: 0<|η|<1.37 and 1.52<|η|<1.7.

Jet offline selection cuts and trigger matching:
Offline jet: pT >30GeV, 0<|η|<1.37 & 1.52<|η|<1.7
Event Filter (EF) jet trigger: ΔR (offline, EF trigger)<0.4 & passed EF_j40
L1 jet trigger: ΔR (offline, L1 trigger)<0.4 & ET (8x8 TTs) > 20 (40 and 70, respectively) GeV.

In this particular case, for all L1 jet trigger items is used the EF_j40 as Event Filter jet trigger, which corresponds to the trigger chain: EF_j40->L2_j35->L1_J20. Since there is only one more EF trigger item: EF_j300, which is too high for this study.
A Monte Carlo data sample has been used for this study:
mc10_14TeV.105568.ttbar_Pythia.recon.ESD.e662_s1107_d459_r2037
which contains 10k events with <μ> ~ 46.

Contact: lmarch@cern.ch
Reference: ATLAS Tile weekly operations meeting (22/04/13) ATLAS-PLOT-TILECAL-2013-004
Date: 2nd May 2013
L1_J20_prelim.png
[pdf]
L1_J40_prelim.png
[pdf]
L1_J70_prelim.png
[pdf]
 
Concerning the ATLAS hadronic Tile calorimeter, the current Level-1 online trigger system will profit from full detector granularity at phase-2, but at phase-1 a higher precision of the Trigger Towers can be used. The electromagnetic (LAr) calorimeter will use 256 MeV, instead of the current 1 GeV precision. The Tile Calorimeter is evaluating if using 256 or 512 MeV instead of the current 1 GeV precision.
This table shows different electromagnetic (LAr) and hadronic (Tile Calorimeter) Trigger Tower energy precisions and their impact on the turn-on curves by looking at the difference of the offline energy between the 10% and 90% of jet efficiency. In addition, the improvements (taking as reference the current precision at the Level-1 trigger system) are shown at the last column.
A Monte Carlo data sample has been used for this study:
mc10_14TeV.105568.ttbar_Pythia.recon.ESD.e662_s1107_d459_r2037
which contains 10k events with <μ> ~ 46.
Line: 88 to 107
 
L1_MU15_eta_matched_tile_n_mu10_efficiency.png
[pdf]
Deleted:
<
<

Muon detection efficiency of the Level-1 Tile-Muon Trigger as a function of TileCal cell energy sum threshold. Results were obtained in proton-proton collision at √s = 13 TeV data collected during run 304337 of the 2016 data period. Tile Muon Digitizer Board (TMDB) has been designed to process (receive and digitize) the data coming from D-Layer channels of the TileCal extended barrel, estimate energy with Matched-Filter and apply threshold. The result is sent to the TGC Sector-Logic Boards. The efficiency denominator consists «good muons» selected by the TGC trigger (1.0 < |η| < 1.3, pT threshold = 6 ) and offline muon selections (pT_muon > 15 GeV, MuonType = combined, dR = √( (eta_trig - eta_muon)^2 + (phi_trig - phi_muon)^2 ) < 0.1). In the numerator - the quantity of «good muons» where one TGC sector (48 sectors) coincident with one of the two TileCal Modules (64 modules), which energy is higher than the threshold, using special pre-defined mapping between TGC Trigger sector number and Tile Module number. The "emulation" for taking coincidence is performed on software (not hardware). Using information of D5+D6 Tile outer radius cells of the extended barrel covering 1.0 < |η| < 1.3 and a threshold cut of 500 MeV (dashed line), a muon detection efficiency of 98.2% is achieved.

Contacts: andrey.ryzhov@SPAMNOTcern.ch and dayane.oliveira.goncalves@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2016-033
Date: 19th September 2016

efficiency.png
[pdf]

The calibration of TMDB output (estimated by Matched-Filter, Arbitrary Units) for EBC03 channel D5L to convert the value to MeV. The calibration constants are computed through a linear fit based on the TileCal channel energy (in MeV) reconstructed offline. Results were obtained in proton-proton collision at √s = 13 TeV data collected during run 304178 of the 2016 data period.

Contacts: andrey.ryzhov@SPAMNOTcern.ch and dayane.oliveira.goncalves@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2016-033
Date: 19th September 2016

Calibration.png
[pdf]

TMDB electronic noise channel map acquired during the pedestal run 304457 of 2016. RMS of noise distribution converted to MeV is shown on the plot. Fourteen channels have problems (2.7%) – white color. Global noise RMS average is better than the estimation of 2013 (140 MeV): Side A (EBA) - 105.5 MeV, Side C (EBC) - 105.3 MeV.

Contacts: andrey.ryzhov@SPAMNOTcern.ch and dayane.oliveira.goncalves@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2016-033
Date: 19th September 2016

NoiseMap.png
[pdf]
 

<!-- ********************************************************* -->

Revision 32016-09-19 - AndreyRyzhov

Line: 1 to 1
 
META TOPICPARENT name="TileCaloPublicResults"
AtlasPublicTopicHeader.png
Line: 88 to 88
 
L1_MU15_eta_matched_tile_n_mu10_efficiency.png
[pdf]
Added:
>
>

Muon detection efficiency of the Level-1 Tile-Muon Trigger as a function of TileCal cell energy sum threshold. Results were obtained in proton-proton collision at √s = 13 TeV data collected during run 304337 of the 2016 data period. Tile Muon Digitizer Board (TMDB) has been designed to process (receive and digitize) the data coming from D-Layer channels of the TileCal extended barrel, estimate energy with Matched-Filter and apply threshold. The result is sent to the TGC Sector-Logic Boards. The efficiency denominator consists «good muons» selected by the TGC trigger (1.0 < |η| < 1.3, pT threshold = 6 ) and offline muon selections (pT_muon > 15 GeV, MuonType = combined, dR = √( (eta_trig - eta_muon)^2 + (phi_trig - phi_muon)^2 ) < 0.1). In the numerator - the quantity of «good muons» where one TGC sector (48 sectors) coincident with one of the two TileCal Modules (64 modules), which energy is higher than the threshold, using special pre-defined mapping between TGC Trigger sector number and Tile Module number. The "emulation" for taking coincidence is performed on software (not hardware). Using information of D5+D6 Tile outer radius cells of the extended barrel covering 1.0 < |η| < 1.3 and a threshold cut of 500 MeV (dashed line), a muon detection efficiency of 98.2% is achieved.

Contacts: andrey.ryzhov@SPAMNOTcern.ch and dayane.oliveira.goncalves@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2016-033
Date: 19th September 2016

efficiency.png
[pdf]

The calibration of TMDB output (estimated by Matched-Filter, Arbitrary Units) for EBC03 channel D5L to convert the value to MeV. The calibration constants are computed through a linear fit based on the TileCal channel energy (in MeV) reconstructed offline. Results were obtained in proton-proton collision at √s = 13 TeV data collected during run 304178 of the 2016 data period.

Contacts: andrey.ryzhov@SPAMNOTcern.ch and dayane.oliveira.goncalves@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2016-033
Date: 19th September 2016

Calibration.png
[pdf]

TMDB electronic noise channel map acquired during the pedestal run 304457 of 2016. RMS of noise distribution converted to MeV is shown on the plot. Fourteen channels have problems (2.7%) – white color. Global noise RMS average is better than the estimation of 2013 (140 MeV): Side A (EBA) - 105.5 MeV, Side C (EBC) - 105.3 MeV.

Contacts: andrey.ryzhov@SPAMNOTcern.ch and dayane.oliveira.goncalves@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2016-033
Date: 19th September 2016

NoiseMap.png
[pdf]
 

<!-- ********************************************************* -->
Line: 134 to 161
 
META FILEATTACHMENT attachment="L1_MU15_eta_matched_tile.pdf" attr="" comment="" date="1471966305" name="L1_MU15_eta_matched_tile.pdf" path="L1_MU15_eta_matched_tile.pdf" size="11421" user="klimek" version="1"
META FILEATTACHMENT attachment="TileCal_different_TT_resolutions.png" attr="" comment="" date="1471966305" name="TileCal_different_TT_resolutions.png" path="TileCal_different_TT_resolutions.png" size="25233" user="klimek" version="1"
META FILEATTACHMENT attachment="TileCal_different_TT_resolutions.pdf" attr="" comment="" date="1471966305" name="TileCal_different_TT_resolutions.pdf" path="TileCal_different_TT_resolutions.pdf" size="23874" user="klimek" version="1"
Added:
>
>
META FILEATTACHMENT attachment="Calibration.pdf" attr="" comment="TMDB Plots for poster TWEPP 2016" date="1474309896" name="Calibration.pdf" path="Calibration.pdf" size="182719" user="aryzhov" version="2"
META FILEATTACHMENT attachment="Calibration.png" attr="" comment="TMDB Plots for poster TWEPP 2016" date="1474310002" name="Calibration.png" path="Calibration.png" size="244407" user="aryzhov" version="2"
META FILEATTACHMENT attachment="efficiency.pdf" attr="" comment="TMDB Plots for poster TWEPP 2016" date="1474306177" name="efficiency.pdf" path="efficiency.pdf" size="93587" user="aryzhov" version="1"
META FILEATTACHMENT attachment="efficiency.png" attr="" comment="TMDB Plots for poster TWEPP 2016" date="1474306177" name="efficiency.png" path="efficiency.png" size="120780" user="aryzhov" version="1"
META FILEATTACHMENT attachment="NoiseMap.pdf" attr="" comment="TMDB Plots for poster TWEPP 2016" date="1474306177" name="NoiseMap.pdf" path="NoiseMap.pdf" size="41321" user="aryzhov" version="1"
META FILEATTACHMENT attachment="NoiseMap.png" attr="" comment="TMDB Plots for poster TWEPP 2016" date="1474306177" name="NoiseMap.png" path="NoiseMap.png" size="105373" user="aryzhov" version="1"

Revision 22016-08-24 - PawelKlimek

Line: 1 to 1
 
META TOPICPARENT name="TileCaloPublicResults"
AtlasPublicTopicHeader.png
Line: 8 to 8
 

Introduction

Changed:
<
<
Upgrade.
>
>
This page lists the public plots illustrating upgrade studies.
 

Upgrade

Revision 12016-08-23 - PawelKlimek

Line: 1 to 1
Added:
>
>
META TOPICPARENT name="TileCaloPublicResults"
AtlasPublicTopicHeader.png

ApprovedPlotsTileUpgrade

<!-- this line is optional -->

Introduction

Upgrade.

Upgrade

Muon detection efficiency and L1_MU20 (see the text) rate reduction as a function of TileCal cell energy sum threshold. Rate reduction is also shown, the probability that in each bunch crossing the sum of the energies deposited in D5 and D6 will be over threshold, given that there is no offline combined muon. Results were obtained using standard offline read-out data. A smearing of 200 MeV was introduced in the response of each cell to simulate the electronics noise of the Level-1 read-out.
Contact: Toshi Sumida
Reference: ATL-COM-TILECAL-2013-039
Date: September 2013

PDF
Muon detection efficiency and background reduction using a prototype receiver module connected to the Level-1 calorimeter trigger electronics. In 2012 data, 50 ns runs are used to collect enough good muon tracks, 25 ns runs are taken to calculate the fake trigger rate with the slow particles coming from the previous bunch.
Contact: Toshi Sumida
Reference: ATL-COM-TILECAL-2013-039
Date: September 2013

PDF
The scope of the TileCal electronic upgrades for phase 2 is to digitize all the calorimeter signals at 40MHz and transmit all the samples to pipeline memories in the off-detector electronics. The trigger will profit from the continuous stream of samples to deal with pile-up and the full radial granularity of the detector. These plot shows the jet efficiency for a Level-1 jet trigger item: L1_J20 (L1_J40 and L1_J70, respectively), currently in use (jet window of 8x8 Trigger Towers and ET>20 GeV (ET>40 GeV and ET>70, respectively) with 1 GeV Trigger Tower precision) and for a jet trigger item planned for phase-2 (jet window of 8x8 Trigger Towers and ET>20 GeV (ET>40 GeV and ET>70 GeV, respectively) with offline cell energy precision (~20 MeV, at the cell noise level precision) to build the TileCal Trigger Towers, while the EM LAr Trigger Towers are taken with the current 1 GeV precision) versus the offline jet pT in GeV, also called turn-on efficiency curves. There is no difference between both L1_J20 turn-on curves, this is due to the fact that we include low energy jets, which don't deposit almost energy at the Tile Calorimeter. However, there is a difference between both L1_J40 (L1_J70) turn-on curves, this is due to include larger jet energies, which deposit larger energies at the Tile Calorimeter and check the impact of the TileCal Trigger Towers with higher precision. The L1_J40 (L1_J70) turn-on curve with offline cell energy precision (planned for phase-2) from 10% to 90% of jet efficiency is ~9% (~12.5%) more narrow than with the current system.
These distributions correspond to all TileCal Trigger Towers: 0<|η|<1.37 and 1.52<|η|<1.7.

Jet offline selection cuts and trigger matching:
Offline jet: pT >30GeV, 0<|η|<1.37 & 1.52<|η|<1.7
Event Filter (EF) jet trigger: ΔR (offline, EF trigger)<0.4 & passed EF_j40
L1 jet trigger: ΔR (offline, L1 trigger)<0.4 & ET (8x8 TTs) > 20 (40 and 70, respectively) GeV.

In this particular case, for all L1 jet trigger items is used the EF_j40 as Event Filter jet trigger, which corresponds to the trigger chain: EF_j40->L2_j35->L1_J20. Since there is only one more EF trigger item: EF_j300, which is too high for this study.
A Monte Carlo data sample has been used for this study:
mc10_14TeV.105568.ttbar_Pythia.recon.ESD.e662_s1107_d459_r2037
which contains 10k events with <μ> ~ 46.

Contact: lmarch@cern.ch
Reference: ATLAS Tile weekly operations meeting (22/04/13) ATLAS-PLOT-TILECAL-2013-004
Date: 2nd May 2013
L1_J20_prelim.png
[pdf]
L1_J40_prelim.png
[pdf]
L1_J70_prelim.png
[pdf]

Concerning the ATLAS hadronic Tile calorimeter, the current Level-1 online trigger system will profit from full detector granularity at phase-2, but at phase-1 a higher precision of the Trigger Towers can be used. The electromagnetic (LAr) calorimeter will use 256 MeV, instead of the current 1 GeV precision. The Tile Calorimeter is evaluating if using 256 or 512 MeV instead of the current 1 GeV precision.
This table shows different electromagnetic (LAr) and hadronic (Tile Calorimeter) Trigger Tower energy precisions and their impact on the turn-on curves by looking at the difference of the offline energy between the 10% and 90% of jet efficiency. In addition, the improvements (taking as reference the current precision at the Level-1 trigger system) are shown at the last column.
A Monte Carlo data sample has been used for this study:
mc10_14TeV.105568.ttbar_Pythia.recon.ESD.e662_s1107_d459_r2037
which contains 10k events with <μ> ~ 46.

Contact: augusto.santiago.cerqueira@cern.ch
Reference: ATLAS-PLOT-TILECAL-2013-004
Date: 2nd May 2013

TileCal_different_TT_resolutions.png
[pdf]
Probability that the receiver system confirms the muon triggered by RPC (“Muon detection”curve), with respect to the energy threshold based on the TileCal rear sampling information available at L1 (|η| < 0.7). The TileCal cell energy is estimated from a matched filter design, implemented for a proposed system to receive the TileCal outermost radial sampling signal from the long barrel region and to interface it with the RPC sector logics. The objective is to offer an alternative for the muon barrel trigger to increase L1 rejection over fake triggers due to cavern background and other secondary processes. The “Fake muon detection” curve shows the probability that the receiver system would conrm an RPC sector logic in the absence of muons crossing the long barrel, given the hypothetical scenario where RPC has already misidentied a muon in a given sector logic. In these cases, the receiver system wrongly confirms the sector logic due exclusively to the TileCal noise. Considering a threshold of 350 MeV, the receiver operates with an 80% probability of correctly confirming a muon, but 20% of the misidentified sector logics by RPC would also be confirmed. Offline track extrapolation was used to correctly identify the TileCal cells crossed by reconstructed muons. The results were derived from single muon data from 2010 (high momenta or isolated muons), where spare L1Calo hardware was used to acquire the TileCal rear sampling signal available at L1. The luminosity considered is much smaller than the expected scenario at the ATLAS upgrade.

Contact: Thiago Ciodaro ciodaro@cernNOSPAMPLEASE.ch
Reference: ATLAS-PLOT-TILECAL-2012-014
Date: 13th May 2013

upgrade_muonReceiver_CombPerformance.png

Usage of Tile calorimeter in the muon triggers

Efficiency and rejection rate for the Tile coincidence requirement applied to L1_MU10. The threshold was applied to energy from cells D0-D6 and BC8. The figure is for regions of interest (RoIs) with |η|<1.05 from the PRCs and 1.05<|η|<1.4 from the TGCs. The average number of interactions per bunch crossing, <”>, is 8.5.

Contacts: alexander.paramonov@SPAMNOTcern.ch, Ana.Maria.Henriques.Correia@SPAMNOTcern.ch, and Masaya.Ishino@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2015-022
Date: 23rd March 2015

L1_MU10_Coincidence_Efficiency_AND_Rejection_Rate.png
[pdf]

The distributions in η of RoIs from L1_MU10. The distributions are before (solid black line) and after applying the Tile coincidence (shaded red histogram). The threshold for the coincidence requirement is 150 MeV. The average number of interactions per bunch crossing, <”>, is 8.5.

Contacts: alexander.paramonov@SPAMNOTcern.ch, Ana.Maria.Henriques.Correia@SPAMNOTcern.ch, and Masaya.Ishino@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2015-022
Date: 23rd March 2015

L1_MU10_eta_matched_tile.png
[pdf]

The ratio between the rate of L1_MU10 RoIs before and after applying the Tile coincidence. The distributions in η of RoIs. The threshold for the coincidence requirement is 150 MeV. The average number of interactions per bunch crossing, <”>, is 8.5.

Contacts: alexander.paramonov@SPAMNOTcern.ch, Ana.Maria.Henriques.Correia@SPAMNOTcern.ch, and Masaya.Ishino@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2015-022
Date: 23rd March 2015

L1_MU10_eta_matched_tile_rate_reduction.png
[pdf]

Efficiency and rejection rate for the Tile coincidence requirement applied to L1_MU15. The threshold was applied to energy from cells D0-D6 and BC8. The figure is for regions of interest (RoIs) with |η|<1.05 from the PRCs and 1.05<|η|<1.4 from the TGCs. The average number of interactions per bunch crossing, <”>, is 8.5.

Contacts: alexander.paramonov@SPAMNOTcern.ch, Ana.Maria.Henriques.Correia@SPAMNOTcern.ch, and Masaya.Ishino@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2015-022
Date: 23rd March 2015

L1_MU15_Coincidence_Efficiency_AND_Rejection_Rate.png
[pdf]

The distributions in η of RoIs from L1_MU15. The distributions are before (solid black line) and after applying the Tile coincidence (shaded red histogram). The threshold for the coincidence requirement is 150 MeV. The average number of interactions per bunch crossing, <”>, is 8.5.

Contacts: alexander.paramonov@SPAMNOTcern.ch, Ana.Maria.Henriques.Correia@SPAMNOTcern.ch, and Masaya.Ishino@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2015-022
Date: 23rd March 2015

L1_MU15_eta_matched_tile.png
[pdf]

The ratio between the rate of L1_MU15 RoIs before and after applying the Tile coincidence. The distributions in η of RoIs. The threshold for the coincidence requirement is 150 MeV. The average number of interactions per bunch crossing, <”>, is 8.5.

Contacts: alexander.paramonov@SPAMNOTcern.ch, Ana.Maria.Henriques.Correia@SPAMNOTcern.ch, and Masaya.Ishino@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2015-022
Date: 23rd March 2015

L1_MU15_eta_matched_tile_rate_reduction.png
[pdf]

Efficiency of the Tile coincidence requirement applied to the L1_MU15 trigger. The trigger RoIs were matched to fully-reconstructed muons with pT>10 GeV. The lower muon efficiency observed near η=0 is caused by the variation of the sampling fraction where muons can traverse only iron through all the depth of the calorimeter. The scintillating tiles and iron plates are parallel to the incoming particles at η =0. This effect is negligible for hadron showers. The average number of interactions per bunch crossing, <”>, is 8.5.

Contacts: alexander.paramonov@SPAMNOTcern.ch, Ana.Maria.Henriques.Correia@SPAMNOTcern.ch, and Masaya.Ishino@SPAMNOTcern.ch
Reference: ATL-COM-TILECAL-2015-022
Date: 23rd March 2015

L1_MU15_eta_matched_tile_n_mu10_efficiency.png
[pdf]

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