Difference: TauTriggerPublicResults (1 vs. 39)

Revision 392019-07-11 - BertrandMartin

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META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
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Plots for Summer 2019

Changed:
<
<
Efficiency of 𝜏-lepton triggers as a function of the offline 𝜏-lepton transverse momentum pT, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to 1-prong offline 𝜏-leptons passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are considered. The HLT tau25 medium BDT (w/ Ntrack presel) trigger is described in ATLAS-CONF-2017-061: a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm is applied at HLT preselection level to save CPU; the 𝜏-lepton identification is based on a Boosted Decision Tree algorithm. This version has run for the whole Run-2 period. The HLT tau25 medium BDT (w/o Ntrack presel) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
[png] [pdf] [eps]
Efficiency of 𝜏-lepton triggers as a function of the offline 𝜏-lepton transverse momentum pT, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to 3-prong offline 𝜏-leptons passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are considered. The HLT tau25 medium BDT (w/ Ntrack presel) trigger is described in ATLAS-CONF-2017-061: a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm is applied at HLT preselection level to save CPU; the 𝜏-lepton identification is based on a Boosted Decision Tree algorithm. This version has run for the whole Run-2 period. The HLT tau25 medium BDT (w/o Ntrack presel) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
[png] [pdf] [eps]
Efficiency of 𝜏-lepton triggers as a function of the average number of pileup interactions, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to 1-prong offline 𝜏-leptons with pT > 30 GeV passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are considered. The HLT tau25 medium BDT (w/ Ntrack presel) trigger is described in ATLAS-CONF-2017-061: a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm is applied at HLT preselection level to save CPU; the 𝜏-lepton identification is based on a Boosted Decision Tree algorithm. This version has run for the whole Run-2 period. The inefficiency of the Ntrack preselection at high pileup is due to the larger number of fake tracks reconstructed from random hits alignment in the inner detector. The HLT tau25 medium BDT (w/o Ntrack presel) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
[png] [pdf] [eps]
Efficiency of 𝜏-lepton triggers as a function of the average number of pileup interactions, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to 3-prong offline 𝜏-leptons with pT > 30 GeV passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are considered. The HLT tau25 medium BDT (w/ Ntrack presel) trigger is described in ATLAS-CONF-2017-061: a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm is applied at HLT preselection level to save CPU; the 𝜏-lepton identification is based on a Boosted Decision Tree algorithm. This version has run for the whole Run-2 period. The inefficiency of the Ntrack preselection at high pileup is due to the larger number of fake tracks reconstructed from random hits alignment in the inner detector. The HLT tau25 medium BDT (w/o Ntrack presel) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
[png] [pdf] [eps]
>
>
Average rate of 𝜏-lepton triggers as a function of the average number of pileup interactions, in pp collisions at √s = 13 TeV delivered by the LHC between July and October 2018, corresponding to an integrated luminosity of 36.8 fb-1. Rates are shown for a) the single-tau trigger with an ET threshold of 160 GeV at the High Level Trigger (HLT), and b) the di-tau trigger with a L1Topo and a jet requirement at Level 1, and ET thresholds of 35 and 25 GeV at the HLT. The medium BDT (1-3 fast tracks) trigger described in ATLAS-CONF-2017-061 applies a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm at HLT preselection level, and uses a Boosted Decision Tree algorithm for 𝜏-lepton identification. The track preselection reduces CPU and rates but induces inefficiency for 3-prong 𝜏-leptons at high pileup. The medium BDT (1-3 precision tracks) trigger is identical, except that the track multiplicity requirement is applied to precision tracks reconstructed at a later HLT stage. Efficiency at high pileup is recovered at the expense of a slight rate increase. The medium RNN (0-3 precision tracks) trigger applies a requirement on the number of precision tracks, and uses a Recurrent Neural Network algorithm for 𝜏-lepton identification. The larger increase in the RNN di-tau trigger rate at high pileup comes from HLT tau candidates with no associated track, which were included in the RNN trigger to recover efficiency at low ET. The single-tau trigger does not exhibit this behaviour due to its high-ET threshold.
a) [png] [pdf] [eps]

b) [png] [pdf] [eps]

Efficiency of 𝜏-lepton triggers as a function of the offline 𝜏-lepton transverse momentum pT, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to a) 1-prong and b) 3-prong offline 𝜏-leptons passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are shown. The HLT tau25 medium BDT (1-3 fast tracks) trigger described in ATLAS-CONF-2017-061 applies a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm at HLT preselection level, and uses a Boosted Decision Tree algorithm for 𝜏-lepton identification. This version has run for the whole Run-2 period. The HLT tau25 medium BDT (1-3 precision tracks) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN (0-3 precision tracks) trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
a) [png] [pdf] [eps]

b) [png] [pdf] [eps]
Efficiency of 𝜏-lepton triggers as a function of the average number of pileup interactions, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to a) 1-prong and b) 3-prong offline 𝜏-leptons with pT > 30 GeV passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are shown. The HLT tau25 medium BDT (1-3 fast tracks) trigger described in ATLAS-CONF-2017-061 applies a requirement on the number of tracks reconstructed by a Fast Track Finder (FTF) algorithm at HLT preselection level, and uses a Boosted Decision Tree algorithm for 𝜏-lepton identification. This version has run for the whole Run-2 period. The inefficiency of the FTF track multiplicity requirement at high pileup is due to the larger number of fake tracks reconstructed from random hits alignment in the inner detector. The HLT tau25 medium BDT (1-3 precision tracks) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN (0-3 precision tracks) trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
a) [png] [pdf] [eps]

b) [png] [pdf] [eps]
 

Plots for ICHEP 2016 (Obsolete) ATL-COM-DAQ-2016-088

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Revision 382019-07-10 - BertrandMartin

Line: 1 to 1
 
META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
Line: 22 to 22
 

Preliminary Plots:

Changed:
<
<

Plots for LHCP 2019

>
>

Plots for Summer 2019

 
Efficiency of 𝜏-lepton triggers as a function of the offline 𝜏-lepton transverse momentum pT, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to 1-prong offline 𝜏-leptons passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are considered. The HLT tau25 medium BDT (w/ Ntrack presel) trigger is described in ATLAS-CONF-2017-061: a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm is applied at HLT preselection level to save CPU; the 𝜏-lepton identification is based on a Boosted Decision Tree algorithm. This version has run for the whole Run-2 period. The HLT tau25 medium BDT (w/o Ntrack presel) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
[png] [pdf] [eps]
Efficiency of 𝜏-lepton triggers as a function of the offline 𝜏-lepton transverse momentum pT, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to 3-prong offline 𝜏-leptons passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are considered. The HLT tau25 medium BDT (w/ Ntrack presel) trigger is described in ATLAS-CONF-2017-061: a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm is applied at HLT preselection level to save CPU; the 𝜏-lepton identification is based on a Boosted Decision Tree algorithm. This version has run for the whole Run-2 period. The HLT tau25 medium BDT (w/o Ntrack presel) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
[png] [pdf] [eps]

Revision 372019-04-30 - BertrandMartin

Line: 1 to 1
 
META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
Line: 22 to 22
 

Preliminary Plots:

Added:
>
>

Plots for LHCP 2019

Efficiency of 𝜏-lepton triggers as a function of the offline 𝜏-lepton transverse momentum pT, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to 1-prong offline 𝜏-leptons passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are considered. The HLT tau25 medium BDT (w/ Ntrack presel) trigger is described in ATLAS-CONF-2017-061: a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm is applied at HLT preselection level to save CPU; the 𝜏-lepton identification is based on a Boosted Decision Tree algorithm. This version has run for the whole Run-2 period. The HLT tau25 medium BDT (w/o Ntrack presel) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
[png] [pdf] [eps]
Efficiency of 𝜏-lepton triggers as a function of the offline 𝜏-lepton transverse momentum pT, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to 3-prong offline 𝜏-leptons passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are considered. The HLT tau25 medium BDT (w/ Ntrack presel) trigger is described in ATLAS-CONF-2017-061: a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm is applied at HLT preselection level to save CPU; the 𝜏-lepton identification is based on a Boosted Decision Tree algorithm. This version has run for the whole Run-2 period. The HLT tau25 medium BDT (w/o Ntrack presel) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
[png] [pdf] [eps]
Efficiency of 𝜏-lepton triggers as a function of the average number of pileup interactions, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to 1-prong offline 𝜏-leptons with pT > 30 GeV passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are considered. The HLT tau25 medium BDT (w/ Ntrack presel) trigger is described in ATLAS-CONF-2017-061: a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm is applied at HLT preselection level to save CPU; the 𝜏-lepton identification is based on a Boosted Decision Tree algorithm. This version has run for the whole Run-2 period. The inefficiency of the Ntrack preselection at high pileup is due to the larger number of fake tracks reconstructed from random hits alignment in the inner detector. The HLT tau25 medium BDT (w/o Ntrack presel) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
[png] [pdf] [eps]
Efficiency of 𝜏-lepton triggers as a function of the average number of pileup interactions, for an ET threshold of 12 GeV and a medium isolation requirement at Level 1, and an ET threshold of 25 GeV at the High Level Trigger (HLT). The efficiencies are estimated from Monte Carlo simulation using prompt 𝜏-leptons produced in W(𝜏ν)+jets and tt events. Efficiencies are computed with respect to 3-prong offline 𝜏-leptons with pT > 30 GeV passing the medium BDT identification criteria. The three 𝜏-lepton trigger versions present in the 2018 trigger menu are considered. The HLT tau25 medium BDT (w/ Ntrack presel) trigger is described in ATLAS-CONF-2017-061: a requirement on the number of tracks reconstructed by a Fast Track Finder algorithm is applied at HLT preselection level to save CPU; the 𝜏-lepton identification is based on a Boosted Decision Tree algorithm. This version has run for the whole Run-2 period. The inefficiency of the Ntrack preselection at high pileup is due to the larger number of fake tracks reconstructed from random hits alignment in the inner detector. The HLT tau25 medium BDT (w/o Ntrack presel) trigger is identical, except that the track multiplicity requirement is only applied to tracks from precision tracking reconstructed at a later HLT stage; this version has run for the whole 2018 data taking. The HLT tau25 medium RNN trigger uses a Boosted Regression Tree for energy calibration (instead of the pileup and response corrections applied in BDT triggers) and a Recurrent Neural Network algorithm for 𝜏-lepton identification; this version was deployed in July 2018. Only statistical uncertainties are displayed. The three HLT versions have comparable trigger rates.
[png] [pdf] [eps]
 

Plots for ICHEP 2016 (Obsolete) ATL-COM-DAQ-2016-088

Tau trigger efficiency measured in data and compared to simulation, with respect to offline reconstructed tau candidate with one or three tracks and passing the offline medium identification criteria, as function of the offline transverse momentum. The trigger efficiency is measured in a tag and probe analysis with 𝑍 → 𝜏𝜏 → 𝜇𝜏ℎ𝑎𝑑 event from the 2016 dataset in 13TeV collision (8.0fb-1). The corresponding online tau requirements are transverse momentum above 25 GeV, between one and three tracks and pass the online medium identification. The error bars correspond to statistical uncertainty.
[png] [pdf] [eps]
Tau trigger efficiency measured in data with respect to offline reconstructed tau candidate with one or three tracks and passing the offline medium identification criteria, as function of the offline transverse momentum. The trigger efficiency is measured in a tag and probe analysis with 𝑍 → 𝜏𝜏 → 𝜇𝜏ℎ𝑎𝑑 event from the 2016 dataset in 13TeV collision (8.0fb-1). The corresponding online tau requirements are transverse momentum above 12 GeV and pass the isolation criteria at L1 and above 25 GeV, between one and three tracks and pass the online medium identification at HLT. The error bars correspond to statistical uncertainty.
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  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.
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2016 Data @ 13 TeV

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Run2

 
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Plots for ICHEP 2016 ATL-COM-DAQ-2016-088

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Publications

Preliminary Plots:

Plots for ICHEP 2016 (Obsolete) ATL-COM-DAQ-2016-088

 
Tau trigger efficiency measured in data and compared to simulation, with respect to offline reconstructed tau candidate with one or three tracks and passing the offline medium identification criteria, as function of the offline transverse momentum. The trigger efficiency is measured in a tag and probe analysis with 𝑍 → 𝜏𝜏 → 𝜇𝜏ℎ𝑎𝑑 event from the 2016 dataset in 13TeV collision (8.0fb-1). The corresponding online tau requirements are transverse momentum above 25 GeV, between one and three tracks and pass the online medium identification. The error bars correspond to statistical uncertainty.
[png] [pdf] [eps]
Tau trigger efficiency measured in data with respect to offline reconstructed tau candidate with one or three tracks and passing the offline medium identification criteria, as function of the offline transverse momentum. The trigger efficiency is measured in a tag and probe analysis with 𝑍 → 𝜏𝜏 → 𝜇𝜏ℎ𝑎𝑑 event from the 2016 dataset in 13TeV collision (8.0fb-1). The corresponding online tau requirements are transverse momentum above 12 GeV and pass the isolation criteria at L1 and above 25 GeV, between one and three tracks and pass the online medium identification at HLT. The error bars correspond to statistical uncertainty.
[png] [pdf] [eps]
Tau trigger efficiency measured in data with respect to offline reconstructed tau candidate with transverse momentum above 30 GeV, one or three tracks and passing the offline medium identification criteria, as function of the number of pileup. The trigger efficiency is measured in a tag and probe analysis with 𝑍 → 𝜏𝜏 → 𝜇𝜏ℎ𝑎𝑑 event from the 2016 dataset in 13TeV collision (8.0fb-1). The corresponding online tau requirements are transverse momentum above 12 GeV and pass the isolation criteria at L1 and above 25 GeV, between one and three tracks and pass the online medium identification at HLT. The error bars correspond to statistical uncertainty.
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2015 Data @ 13 TeV

Plots for LHCC 2015 ATL-COM-PHYS-2015-1392

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Plots for LHCC 2015 (Obsolete) ATL-COM-PHYS-2015-1392

 
The BDT tau identification score for online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events from the 2015 dataset in 13 TeV collisions, corresponding to an integrated luminosity of 3.3fb-1. These events are collected using a single muon trigger. The HLT tau candidates are matched with offline tau candidates passing the offline medium tau identification. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303. Only statistical uncertainties are shown.
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Tau trigger efficiency measured in data and compared to simulation, with respect to offline reconstructed tau candidates with transverse momentum above 25 GeV, one or three tracks and passing the offline medium identification requirement. The corresponding online tau candidate is required to have a transverse momentum of at least 25 GeV, between one and three tracks and pass the online medium identification requirement. The trigger efficiency is measured in an enriched sample of Z→ττ→μτ(had) events from the 2015 dataset in 13 TeV collisions, corresponding to an integrated luminosity of 3.3fb-1. These events are collected using a single muon trigger. The efficiency is plotted as function of the transverse momentum of the offline tau candidate. Error bars are statistical uncertainties. Further details are described in ATL-PHYSPUB-2015-025 and in Eur. Phys. J. C75 (2015) 303. Only statistical uncertainties are shown.
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Plots for Lepton Photon 2015 ATL-COM-DAQ-2015-125

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Plots for Lepton Photon 2015 (Obsolete) ATL-COM-DAQ-2015-125

 
The transverse momentum distribution of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events and are considered if matched to a tau candidate passing the offline medium tau identification criteria. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal Z→ττ Monte Carlo and a combined background consisting of Z→ll, W+jets, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
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The pseudo-rapidity distribution of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events and are considered if matched to a tau candidate passing the offline medium tau identification criteria. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal Z→ττ Monte Carlo and a combined background consisting of Z→ll, W+jets, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
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The fraction of transverse energy deposited in a cone of ∆R < 0.1 to the energy deposited in a cone of ∆R < 0.2 with respect to the tau axis for online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of W→μν events and are likely to be jets originating from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→ττ events. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal W→μν+jets Monte Carlo and a combined background consisting of Z→ττ,Z→ll, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
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The BDT tau identification score for online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of W→μν events and are likely to be jets originating from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→ττ events. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal W→μν+jets Monte Carlo and a combined background consisting of Z→ττ,Z→ll, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303
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Plots for EPS 2015 ATL-COM-DAQ-2015-097

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Plots for EPS 2015 (Obsolete) ATL-COM-DAQ-2015-097

 
Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 single-tau and combined tau+X chains. ‘TAU’, ‘EM’, ‘J’ and ‘XE’ indicate the type of L1 object, tau, electron, jet or missing energy, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 30 GeV for L1 TAU30. ‘IM’ and ‘HI’ indicate that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_ALLTAU.png
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Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 di-tau chains. ‘TAU’ and ‘J’ indicate the type of L1 object, tau or jet, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 20 GeV for L1 TAU20. ‘IM’ indicates that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_RATE_TAU_DI.png
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Comparison of the ATLAS HLT expected single-tau trigger efficiency in Run-I and Run-II simulations. The efficiency is computed for offline reconstructed tau candidates with transverse momentum above 20 GeV, one or three tracks and passing the offline medium identification criteria [Eur.Phys.J.C75(2015)303] in simulated Z→ ττ events, where one tau lepton decays leptonically and the other hadronically. The correspondent online tau candidate is required to have a transverse momentum of at least 35 GeV, between one and three tracks and passing the online medium identification. The efficiency is plotted as function of the transverse momentum of the offline tau candidate. Error bars are statistical uncertainties. The overall improvement in the trigger efficiency expected in Run-II is due to the new high-level trigger strategy which includes a more precise energy calibration, a faster tracking and an online identification requirement closer to the one used in the offline tau reconstruction. TurnOn_v0810-1.png
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Plots for EPS 2015 ATL-COM-DAQ-2015-097 (Obsolete)

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Plots for EPS 2015 (Obsolete) ATL-COM-DAQ-2015-097

 
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-PHYS-PUB-2015-025. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_pt.png
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Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-PHYS-PUB-2015-025. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_eta.png
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2012 Data @ 8 TeV

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Run1

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Plots for Summer 2013

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  • Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in pp collisions at √s = 8 TeV
    PERF-2013-06
  • Performance of the ATLAS tau trigger in p-p collisions at √s = 7 TeV
    ATLAS-CONF-2010-090

Preliminary Plots:

Plots for Summer 2013 (Obsolete)

 
The tau trigger efficiency, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of the offline tau transverse energy (pT). The trigger efficiency is measured with the full 2012 ATLAS dataset (20.3 fb­‐1), using a tag-­and-­probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). The tau trigger considered here has calorimetric isolation and a pT threshold of 11 GeV at L1, a 20 GeV requirement on pT, the number of tracks restricted to three or less, and medium selection on the BDT score at the EF. The error bars correspond to the statistical uncertainty on the efficiency. tau_trig_2012_eff_L1L2EF_pt.png
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The tau trigger efficiency, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of the number of primary vertices. The trigger efficiency is measured with the full 2012 ATLAS dataset (20.3 fb-1), using a tag-­and­‐probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). The tau trigger considered here has calorimetric isolation and a pT threshold of 11 GeV at L1, a 20 GeV requirement on pT, the number of tracks restricted to three or less, and medium selection on the BDT score at the EF. To ensure the efficiency is measured on the plateau of this tau trigger, a threshold of 30 GeV is applied to the offline transverse energy (pT). The error bars correspond to the statistical uncertainty on the efficiency. tau_trig_2012_eff_L1L2EF_nvxp.png
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The measured resolution of the transverse energy (pT), with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, at the second level of the ATLAS tau trigger chain in 2012 (level two, L2). The resolution is measured with the full ATLAS 2012 dataset (20.3 fb-1), using a tag-and-probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). Data (dots) are compared to the simulation of the background and signal PDFs (stacked filled histograms). The statistical errors on the sum of the signal and background PDFs are shown (grey, hashed). The signal process, where a Z boson decays into two tau leptons, is shown in blue. The W+jets background, where a real muon comes from the W decay and a jet is misidentified as a hadronic tau candidate, is shown in yellow. The ‘Same Sign’ background, dominated by QCD multi-jet production where one jet fakes a prompt muon and the other fakes a hadronic tau candidate, is shown in green. This background is estimated in a data-driven manner from same-sign data events. The remaining SM processes which have smaller contributions, such as Z boson decays into two muons or two electrons, are shown in brown. The reconstructed energy at L2 is overestimated since it is a scalar sum of energy deposits within a square Region of Interest (RoI), and so it is sensitive to the geometry of the RoI. tau_trig_2012_resL2_pt.png
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The measured resolution of the transverse energy (pT), with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, at the final level of the ATLAS tau trigger chain in 2012 (event filter, EF). The resolution is measured with the full ATLAS 2012 dataset (20.3 fb-1), using a tag-and-probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). Data (dots) are compared to the simulation of the background and signal PDFs (stacked filled histograms). The statistical errors on the sum of the signal and background PDFs are shown (grey, hashed). The signal process, where a Z boson decays into two tau leptons, is shown in blue. The W+jets background, where a real muon comes from the W decay and a jet is misidentified as a hadronic tau candidate, is shown in yellow. The ‘Same Sign’ background, dominated by QCD multi-jet production where one jet fakes a prompt muon and the other fakes a hadronic tau candidate, is shown in green. This background is estimated in a data-driven manner from same-sign data events. The remaining SM processes which have smaller contributions, such as Z boson decays into two muons or two electrons, are shown in brown. tau_trig_2012_resEF_pt.png
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Plots for ICHEP 2012 ATL-COM-DAQ-2012-139 (Obsolete)

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Plots for ICHEP 2012 (Obsolete) ATL-COM-DAQ-2012-139

  Note that they are obsolete. Please use the plots with full dataset (20.3fb-1).
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Efficiency of tau20_medium1 trigger, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of offline tau pT measured in 2012 data. The trigger efficiency is measured using a tag and probe analysis with Z -> τ_mu τ_h events following the offline tau identification efficiency measurement in ATLAS-CONF-2011-152. The term tau20_medium1 implies a 20 GeV requirement on the transverse energy, number of tracks restricted up to 3 and medium selections on the BDT score at EF. ichep2012_BDTeff_vs_pt_2012.png
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Shown are the trigger rates, for single and combined tau triggers, at EF as a function of instantaneous luminosity. The numerical figures in the name of each trigger chain correspond to the thresholds applied at EF. The symbol “xe” represents the missing transverse energy. ichep2012_trigrate_may14-Jun18.png
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Plots for L2 ATL-COM-DAQ-2012-086

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Plots for L2 (Obsolete) ATL-COM-DAQ-2012-086

 
ΔZ0 distribution taken from 2012 (8 TeV) data, with a peak of eighteen interactions per bunch crossing. The ΔZ0 of a track associated with an L2 tau trigger object is defined as the Z0 difference with respect to the lead track Z0. Large values of ΔZ0 correspond to pileup tracks. A Lorentzian function is fitted to the distribution and the quoted value of σ integrates 68% of the area of the central peak. Dependence of the trigger variables on pileup is avoided when only tracks with -2mm < ΔZ0 < 2mm are considered. DatadZ0_convert.png
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ΔZ0 distribution from Z->ττ MC events with an average of eight interactions per bunch crossing. The ΔZ0 of a track associated with an L2 tau trigger object is defined as the Z0 difference with respect to the lead track Z0. Large values of ΔZ0 correspond to pileup tracks. The wide Gaussian distribution corresponds to pileup tracks while the central peak, displayed in the upper right hand side corner, corresponds to the main interaction tracks. A Lorentzian function is fitted to the central peak and the quoted value of the σ integrates 68% of the area. Dependence of the trigger variables on pileup is avoided when only tracks with -2mm < ΔZ0 < 2mm are considered. ZMCdZ0_i_convert.png
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Average L2 SumPtRatio as a function of the average number of interactions per bunch crossing in Z->ττ events. The SumPtRatio is the ratio of the scalar sum of the pT of all the tracks in the isolation region, defined as annulus 0.1<ΔR<0.3 with respect to the leading track in the RoI, to the scalar sum of the pT of all the tracks in the core region, defined as the ΔR<0.1 cone around the leading track. The ΔZ0 of a track associated with an L2 tau trigger object is defined as the Z0 distance with respect to the lead track. Pileup dependence is avoided when only tracks with -2mm < ΔZ0 < 2mm are considered. ZMCSumPtRatio_convert.png
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Marginal efficiencies for L2 SumPtRatio as well as L2 EM radius calculated in cones of ΔR < 0.2 and 0.4 are shown as a function of the average number of interactions per bunch crossing. EM radius is the electromagnetic energy weighted radius and SumPtRatio is the ratio of the scalar sum of pT of all tracks in an isolation region to that in a core region. The isolation region is the annulus 0.1<ΔR<0.3 around the direction of the highest momentum track, while the core region is defined to be a cone of radius ΔR<0.1. Average number of interactions per bunch crossing provides a measure of pileup. These marginal efficiencies have been calculated with respect to a specific L2 trigger selection optimized for low pT taus, L2_tau20_medium1. L2ConeComparison_convert.png
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Plots for CHEP 2012 ATL-COM-DAQ-2012-035

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Plots for CHEP 2012 (Obsolete) ATL-COM-DAQ-2012-035

 
Efficiency with respect to the offline identified tau candidates as a function of number of vertices measured in 2011. The efficiency of the tau20_medium trigger measured using a tag and probe analysis with Z ­‐> ττ ­‐> μh events collected by ATLAS in 2011. The term tau20_medium implies a 20 GeV requirement on the transverse energy at EF and medium selections on the shower shape variables. The analysis follows closely the tau ID efficiency measurement ATLAS-CONF­-2011-­152. chep2012_eff_vs_nvtx_2011.png
[png] [eps]
Expected efficiency in 2012 with respect to the offline identified tau candidates as a function of number of vertices. The tau trigger is rerun on the full 2011 dataset from unbiased Z ­‐> ττ ‐> μh events, where muon trigger is used to collect Z ­‐> ττ ‐> μh data and measure the efficiency of the tau20_medium trigger by a tag and probe method. The term tau20_medium implies a 20 GeV requirement on the transverse energy at EF and medium selections on the shower shape variables. In 2012, smaller calorimeter cone size of 0.2 compared to 0.4 in 2011 and implementation of ΔZ selection with respect to the leading track (abs(ΔZ) < 2mm) will provide robustness against pile-­up. The analysis follows closely the tau ID efficiency measurement ATLAS-­CONF-­2011-­152. chep2012_eff_vs_nvtx_expected2012.png
[png] [eps]
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Performance of the multivariate‐based tau triggers at EF. The signal efficiency is defined with respect to the offline identified tau candidates from the truth tau and the background rejection is from a jet. The figure shows multi‐prong tau trigger candidates for BDT-­ and LLH-­based triggers. The trigger decision is optimized to be 85% and 80% with respect to the offline candidates for 1­‐prong and multi-­prong, respectively. chep2012_EFsignal_vs_rejection_multiprong.png
[png] [eps]
Shown are the trigger rates as a function of instantaneous luminosity for combined tau triggers. A linear rise in rates is seen in data taken after the April technical stop. This is due to the small cone size (0.2) and implementation of ΔZ selection with respect to the leading track (abs(ΔZ) < 2mm) at the HLT. The numerical figures in the name of each trigger chain correspond to the transverse energy or momentum threshold applied at EF. chep2012_trigrate_may1-9.png
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2011 Data @ 7 TeV

Plots for Winter 2012 ATL-COM-DAQ-2012-001

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Plots for Winter 2012 (Obsolete) ATL-COM-DAQ-2012-001

 
Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 tau items that seed tau chains at HLT. The last digits in the L1 item name correspond to the ET requirement, e.g. a L1 ET > 11 GeV for L1 TAU11. The data have been collected at a center-of-mass energy of 7 TeV in 2011. ALlperiodL1.png
[png] [eps]
Cross-section (rate to luminosity ratio) versus the average number of interactions per bunch crossings measured by ATLAS for L1 tau items that seed tau chains at HLT. The last digits in the L1 item name correspond to the ET requirement, e.g. a L1 ET > 11 GeV for L1 TAU11. The data have been collected at a center-of-mass energy of 7 TeV in 2011. ALlperiodL1mu.png
[png] [eps]
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Number of tracks of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_ntrack.png
[png] [eps]
pT weighted track radius of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_trkAvgDist.png
[png] [eps]
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Plots for PostLP 2011 ATL-COM-DAQ-2011-065

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Plots for PostLP 2011 (Obsolete) ATL-COM-DAQ-2011-065

 
EF_tau20_medium1 efficiency:
Efficiency of the EF\_tau20\_medium1 trigger chain with respect to offline reconstructed tau candidates, as a function of the offline $\pt$. The trigger includes a strict requirement on the number of tracks associated to the trigger object in addition to the regular 'medium' selection. The measurement was made using a tag and probe analysis with $Z\rightarrow\tau\tau\rightarrow\mu h$ events in 2011 data. The tau candidates are required to pass medium identification criteria. The analysis follows closely the method from the $Z\rightarrow\tau\tau$ cross-section measurement http://arxiv.org/abs/1108.2016.
EF_tau20_medium1_tau_Pt_Period-F-G_ToyMC.png
[png] [eps]
EF_tau29_medium1 efficiency:
Efficiency of the EF\_tau29\_medium1 trigger chain with respect to offline reconstructed tau candidates, as a function of the offline $\pt$. The trigger includes a strict requirement on the number of tracks associated to the trigger object in addition to the regular 'medium' selection. The measurement was made using a tag and probe analysis with $Z\rightarrow\tau\tau\rightarrow\mu h$ events in 2011 data. The tau candidates are required to pass medium identification criteria. The analysis follows closely the method from the $Z\rightarrow\tau\tau$ cross-section measurement http://arxiv.org/abs/1108.2016.
EF_tau29_medium1_tau_Pt_Period-F-G_ToyMC.png
[png] [eps]
L2 transverse energy:
Distribution of transverse energy in a cone of radius 0.4 around the tau direction at L2. The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the black points represent the data. A dijet selection has been applied to select the events in data.
EtNor.png
[png] [eps]
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EF-offline comparision of centrality fraction for 1-prong taus:
Distribution of the ratio of the transverse energy in a cone of radius 0.1 to the transverse energy in a larger cone of radius 0.4 around the tau direction, $f_{\mathrm{core}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 1 associated track (1-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. A less precise energy calibration applied at EF causes a shift on this distribution with respect to offline.
CentFrac1P.png
[png] [eps]
EF-offline comparision of centrality fraction for 3-prong taus:
Distribution of the ratio of the transverse energy in a cone of radius 0.1 to the transverse energy in a larger cone of radius 0.4 around the tau direction, $f_{\mathrm{core}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 3 associated track (3-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. A less precise energy calibration applied at EF causes a shift on this distribution with respect to offline.
CentFrac3P.png
[png] [eps]
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Plots for PLHC 2011 ATL-COM-DAQ-2011-035

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Plots for PLHC 2011 (Obsolete) ATL-COM-DAQ-2011-035

 
tau16_loose efficiency with simulation:
Fraction of the offline tau candidates with tight cut-based identification passing L1, L2 and EF of the tau16_loose trigger as a function of the calibrated ET of the offline tau candidate. Distributions are produced from Monte-Carlo (MC) Z->tau tau events. The ET requirements are 7 GeV at L1, 12 GeV at L2 and 16 GeV at EF. Loose selection corresponds to softer cuts on shower shape variables at trigger level than used in offline.
tau16_loose_Ztautau_menutest_plotapproval.png
[png] [eps]
tau29_medium efficiency with simulation:
Fraction of the offline tau candidates with tight cut-based identification passing L1, L2 and EF of the tau29_medium single trigger as a function of the calibrated ET of the offline tau candidate. Distributions are produced from Monte-Carlo (MC) ??tt events. The ET requirements are 11 GeV at L1, 23 GeV at L2 and 29 GeV at EF. Medium selection corresponds to moderate cuts on shower shape variables
tau29_medium_Ztautau_menutest_plotapproval.png
[png] [eps]
Line: 148 to 161
 
L1 rate before prescale:
Level 1 (L1) rates before prescale versus the instantaneous luminosity measured by ATLAS for four different L1 tau items that are feeding primary High Level Trigger (HLT) tau chains. The last digits in the L1 item name correspond to the ET requirement, e.g. a L1 ET > 11 GeV for L1_TAU11. The data has been collected in 14 runs at a centre-of-mass energy of 7 TeV in spring 2011.
tau_L1rates.png
[png] [eps]
EF output rate:
Event Filter (EF) output rates versus the instantaneous luminosity measured by ATLAS for four selected High Level Trigger (HLT) tau chains. The numbers in the item names correspond to ET requirements at EF for a given trigger type, e.g. a muon candidate with ET > 15 GeV in mu15 or missing transverse energy > 35 GeV in xe35. The data has been collected in 14 runs at a centre-of-mass energy of 7 TeV in spring 2011.
tau_HLTrates.png
[png] [eps]
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2010 Data @ 7 TeV

Plots for PLHC 2011 ATL-COM-DAQ-2011-035

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Plots for PLHC 2011 (Obsolete) ATL-COM-DAQ-2011-035

 
Efficiency of 16 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 16 GeV tau trigger, for di-jet events firing a 50 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Differences between data and signal due to wider shower profile of jets.
dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png
[png] [eps]
Efficiency of 50 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 50 GeV tau trigger, for di-jet events firing the 75 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Discrepancy between data and QCD di-jet MC attributed to imperfect modeling of EF variables in MC.
dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png
[png] [eps]
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tau16_loose efficiency from muon channel:
Fraction of tau candidates with tight cut-based identification passing tau16_loose for Z -> tau tau in the muon channel for data and MC. eT Data 2010 refers to the total efficiency for all selected events, while eS Data 2010 refers to the trigger estimated after background correction. eS MC refers to efficiency for all selected events in signal MC. Statistical errors only are shown.
ZToTauTau_Oregon_eff16loo_mu.png
[png] [eps]
Efficiency plot combining electron and muon channel :
Tau trigger efficiency from combined electron and muon channels for Z -> tau tau events in data after background correction, for EF_tau12_loose and tau16_loose, versus offline tau candidate pT. Statistical errors only are shown.
ZToTauTau_Oregon_eff.png
[png] [eps]
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Performance of the ATLAS tau trigger in p-p collisions at √s = 7 TeV ATLAS-CONF-2010-090

 
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Tau Trigger plots for approval for Tau2010 ATL-COM-DAQ-2010-130

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Tau Trigger plots for approval for Tau2010 (Obsolete) ATL-COM-DAQ-2010-130

 
L1 Tau11 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 11 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau11TurnOn.png
[eps] [pdf]
L1 Tau20 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 20 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau20TurnOn.png
[eps] [pdf]

Revision 352016-08-01 - DanieleZanzi

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2016 Data @ 13 TeV

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Plots for ICHEP 2016 [[https://cds.cern.ch/record/2200714][ATL-COM-DAQ-2016-088]

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Plots for ICHEP 2016 ATL-COM-DAQ-2016-088

Tau trigger efficiency measured in data and compared to simulation, with respect to offline reconstructed tau candidate with one or three tracks and passing the offline medium identification criteria, as function of the offline transverse momentum. The trigger efficiency is measured in a tag and probe analysis with 𝑍 → 𝜏𝜏 → 𝜇𝜏ℎ𝑎𝑑 event from the 2016 dataset in 13TeV collision (8.0fb-1). The corresponding online tau requirements are transverse momentum above 25 GeV, between one and three tracks and pass the online medium identification. The error bars correspond to statistical uncertainty.
[png] [pdf] [eps]
Tau trigger efficiency measured in data with respect to offline reconstructed tau candidate with one or three tracks and passing the offline medium identification criteria, as function of the offline transverse momentum. The trigger efficiency is measured in a tag and probe analysis with 𝑍 → 𝜏𝜏 → 𝜇𝜏ℎ𝑎𝑑 event from the 2016 dataset in 13TeV collision (8.0fb-1). The corresponding online tau requirements are transverse momentum above 12 GeV and pass the isolation criteria at L1 and above 25 GeV, between one and three tracks and pass the online medium identification at HLT. The error bars correspond to statistical uncertainty.
[png] [pdf] [eps]
Tau trigger efficiency measured in data with respect to offline reconstructed tau candidate with transverse momentum above 30 GeV, one or three tracks and passing the offline medium identification criteria, as function of the number of pileup. The trigger efficiency is measured in a tag and probe analysis with 𝑍 → 𝜏𝜏 → 𝜇𝜏ℎ𝑎𝑑 event from the 2016 dataset in 13TeV collision (8.0fb-1). The corresponding online tau requirements are transverse momentum above 12 GeV and pass the isolation criteria at L1 and above 25 GeV, between one and three tracks and pass the online medium identification at HLT. The error bars correspond to statistical uncertainty.
[png] [pdf] [eps]
 

2015 Data @ 13 TeV

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  • ratio.png:
    ratio.png

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    TrigEff_0prong_0ETA_2BDT_25trig__n_avg_int_cor.root.png

  • TrigEff_0prong_0ETA_2BDT_25trig.root.png:
    TrigEff_0prong_0ETA_2BDT_25trig.root.png
 
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META FILEATTACHMENT attachment="HLT_BDT_Tau_ID_Score.pdf" attr="" comment="LHCC plots" date="1448877801" name="HLT_BDT_Tau_ID_Score.pdf" path="HLT_BDT_Tau_ID_Score.pdf" size="27544" user="dzanzi" version="1"
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  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.
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2016 Data @ 13 TeV

Plots for ICHEP 2016 [[https://cds.cern.ch/record/2200714][ATL-COM-DAQ-2016-088]

 

2015 Data @ 13 TeV

Plots for LHCC 2015 ATL-COM-PHYS-2015-1392

Revision 332015-12-09 - DanieleZanzi

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    HLT_BDT_Tau_ID_Score.png

 
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2015 Data @ 13 TeV

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Plots for LHCC 2015 ATL-COM-PHYS-2015-1392

The BDT tau identification score for online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events from the 2015 dataset in 13 TeV collisions, corresponding to an integrated luminosity of 3.3fb-1. These events are collected using a single muon trigger. The HLT tau candidates are matched with offline tau candidates passing the offline medium tau identification. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303. Only statistical uncertainties are shown.
[png] [pdf] [eps]
Tau trigger efficiency measured in data and compared to simulation, with respect to offline reconstructed tau candidates with transverse momentum above 25 GeV, one or three tracks and passing the offline medium identification requirement. The corresponding online tau candidate is required to have a transverse momentum of at least 25 GeV, between one and three tracks and pass the online medium identification requirement. The trigger efficiency is measured in an enriched sample of Z→ττ→μτ(had) events from the 2015 dataset in 13 TeV collisions, corresponding to an integrated luminosity of 3.3fb-1. These events are collected using a single muon trigger. The efficiency is plotted as function of the transverse momentum of the offline tau candidate. Error bars are statistical uncertainties. Further details are described in ATL-PHYSPUB-2015-025 and in Eur. Phys. J. C75 (2015) 303. Only statistical uncertainties are shown.
[png] [pdf] [eps]
 

Plots for Lepton Photon 2015 ATL-COM-DAQ-2015-125

The transverse momentum distribution of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events and are considered if matched to a tau candidate passing the offline medium tau identification criteria. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal Z→ττ Monte Carlo and a combined background consisting of Z→ll, W+jets, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]
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  • LHCC plots:
    Tau_Trigger_Efficiency.png

  • LHCC plots:
    HLT_BDT_Tau_ID_Score.png

 
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META FILEATTACHMENT attachment="Tau_Trigger_Efficiency.png" attr="" comment="LHCC plots" date="1448877801" name="Tau_Trigger_Efficiency.png" path="Tau_Trigger_Efficiency.png" size="14009" user="dzanzi" version="1"
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META FILEATTACHMENT attachment="HLT_BDT_Tau_ID_Score.png" attr="" comment="LHCC plots" date="1448877801" name="HLT_BDT_Tau_ID_Score.png" path="HLT_BDT_Tau_ID_Score.png" size="20001" user="dzanzi" version="1"
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META FILEATTACHMENT attachment="HLT_BDT_Tau_ID_Score.pdf" attr="" comment="LHCC plots" date="1448877801" name="HLT_BDT_Tau_ID_Score.pdf" path="HLT_BDT_Tau_ID_Score.pdf" size="27544" user="dzanzi" version="1"

Revision 312015-08-28 - MatthewBeckingham

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Plots for Lepton Photon 2015 ATL-COM-DAQ-2015-125

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The transverse momentum distribution of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events and are considered if matched to a tau candidate passing the offline medium tau identification criteria. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal Z→ττ Monte Carlo and a combined background consisting of Z→ll, W+jets, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The pseudo-rapidity distribution of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events and are considered if matched to a tau candidate passing the offline medium tau identification criteria. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal Z→ττ Monte Carlo and a combined background consisting of Z→ll, W+jets, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The track multiplicity distribution, for tracks within a ΔR<0.2 of the tau axis, of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events and are considered if matched to a tau candidate passing the offline medium tau identification criteria. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal Z→ττ Monte Carlo and a combined background consisting of Z→ll, W+jets, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The track multiplicity distribution, for tracks within a 0.2<ΔR<0.4 of the tau axis, of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events and are considered if matched to a tau candidate passing the offline medium tau identification criteria. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal Z→ττ Monte Carlo and a combined background consisting of Z→ll, W+jets, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The fraction of transverse energy deposited in a cone of ∆R < 0.1 to the energy deposited in a cone of ∆R < 0.2 with respect to the tau axis for online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events and are considered if matched to a tau candidate passing the offline medium tau identification criteria. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal Z→ττ Monte Carlo and a combined background consisting of Z→ll, W+jets, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The BDT tau identification score for online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement.The HLT tau candidates are observed in an enriched sample of Z→ττ→μτ(had) events and are considered if matched to a tau candidate passing the offline medium tau identification criteria. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal Z→ττ Monte Carlo and a combined background consisting of Z→ll, W+jets, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The Level-1 tau trigger efficiency measured in data and compared to simulation, with respect to offline reconstructed tau candidates with transverse momentum above 20 GeV, one or three tracks and passing the offline medium identification criteria. The online tau candidates are reconstructed at Level-1 of the ATLAS trigger and are required to have a transverse energy of 12 GeV and pass the medium isolation criteria. The trigger efficiency is measured in an enriched sample of Z→ττ→μτ(had) events recorded in the first 13 TeV collisions in 2015. The efficiency is plotted as function of the transverse momentum of the offline tau candidate. Error bars are statistical uncertainties. Further details are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The combined Level-1 and HLT tau trigger efficiency measured in data and compared to simulation, with respect to offline reconstructed tau candidates with transverse momentum above 20 GeV, one or three tracks and passing the offline medium identification criteria. The corresponding online tau candidate is required to have a transverse momentum of at least 25 GeV, between one and three tracks and pass the online medium identification. The trigger efficiency is measured in an enriched sample of Z→ττ→μτ(had) events recorded in the first 13 TeV collisions in 2015. The efficiency is plotted as function of the transverse momentum of the offline tau candidate. Error bars are statistical uncertainties. Further details are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The transverse momentum distribution of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of W→μν events and are likely to be jets originating from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→ττ events. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal W→μν+jets Monte Carlo and a combined background consisting of Z→ττ, Z→ll, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The pseudo-rapidity distribution of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement.The HLT tau candidates are observed in an enriched sample of W→μν events and are likely to be jets originating from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→ττ events. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal W→μν+jets Monte Carlo and a combined background consisting of Z→ττ, Z→ll, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The track multiplicity distribution, for tracks within a ΔR<0.2 of the tau axis, of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of W→μν events and are likely to be jets originating from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→ττ events. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal W→μν+jets Monte Carlo and a combined background consisting of Z→ττ, Z→ll, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The track multiplicity distribution, for tracks within a 0.2<ΔR<0.4 of the tau axis, of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of W→μν events and are likely to be jets originating from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→ττ events. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal W→μν+jets Monte Carlo and a combined background consisting of Z→ττ, Z→ll, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The fraction of transverse energy deposited in a cone of ∆R < 0.1 to the energy deposited in a cone of ∆R < 0.2 with respect to the tau axis for online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of W→μν events and are likely to be jets originating from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→ττ events. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal W→μν+jets Monte Carlo and a combined background consisting of Z→ττ,Z→ll, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303.
[png] [pdf] [eps]

The BDT tau identification score for online tau candidates passing the HLT tau trigger with transverse momentum threshold at 25 GeV and online medium identification requirement. The HLT tau candidates are observed in an enriched sample of W→μν events and are likely to be jets originating from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→ττ events. Data has been recorded in the first 13 TeV collisions in 2015. The data are compared to a signal W→μν+jets Monte Carlo and a combined background consisting of Z→ττ,Z→ll, and Top Monte Carlo and a data driven multijet estimate. Only statistical uncertainties are shown. The ratio of the observed data to the expected signal and background events is also shown, where the red band shows the statistical uncertainty on the total expectation. Event selections and background estimations are described in ATL-PHYS-PUB-2015-025 and in Eur. Phys. J. C75 (2015) 303
[png] [pdf] [eps]
 

Plots for EPS 2015 ATL-COM-DAQ-2015-097

Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 single-tau and combined tau+X chains. ‘TAU’, ‘EM’, ‘J’ and ‘XE’ indicate the type of L1 object, tau, electron, jet or missing energy, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 30 GeV for L1 TAU30. ‘IM’ and ‘HI’ indicate that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_ALLTAU.png
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META TOPICPARENT name="AtlasResults"
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2015 Data @ 13 TeV

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Plots for Lepton Photon 2015 ATL-COM-DAQ-2015-125

Plots for EPS 2015 ATL-COM-DAQ-2015-097

 
Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 single-tau and combined tau+X chains. ‘TAU’, ‘EM’, ‘J’ and ‘XE’ indicate the type of L1 object, tau, electron, jet or missing energy, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 30 GeV for L1 TAU30. ‘IM’ and ‘HI’ indicate that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_ALLTAU.png
[png][pdf][eps]
Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 di-tau chains. ‘TAU’ and ‘J’ indicate the type of L1 object, tau or jet, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 20 GeV for L1 TAU20. ‘IM’ indicates that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_RATE_TAU_DI.png
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Comparison of the ATLAS HLT expected single-tau trigger efficiency in Run-I and Run-II simulations. The efficiency is computed for offline reconstructed tau candidates with transverse momentum above 20 GeV, one or three tracks and passing the offline medium identification criteria [Eur.Phys.J.C75(2015)303] in simulated Z→ ττ events, where one tau lepton decays leptonically and the other hadronically. The correspondent online tau candidate is required to have a transverse momentum of at least 35 GeV, between one and three tracks and passing the online medium identification. The efficiency is plotted as function of the transverse momentum of the offline tau candidate. Error bars are statistical uncertainties. The overall improvement in the trigger efficiency expected in Run-II is due to the new high-level trigger strategy which includes a more precise energy calibration, a faster tracking and an online identification requirement closer to the one used in the offline tau reconstruction. TurnOn_v0810-1.png
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Plots for EPS 2015 ATL-COM-DAQ-2015-097 (Obsolete)

 
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-PHYS-PUB-2015-025. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_pt.png
[png][pdf][eps]
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-PHYS-PUB-2015-025. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_eta.png
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Revision 292015-08-12 - MatthewBeckingham

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META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
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Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 single-tau and combined tau+X chains. ‘TAU’, ‘EM’, ‘J’ and ‘XE’ indicate the type of L1 object, tau, electron, jet or missing energy, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 30 GeV for L1 TAU30. ‘IM’ and ‘HI’ indicate that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_ALLTAU.png
[png][pdf][eps]
Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 di-tau chains. ‘TAU’ and ‘J’ indicate the type of L1 object, tau or jet, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 20 GeV for L1 TAU20. ‘IM’ indicates that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_RATE_TAU_DI.png
[png][pdf][eps]
Changed:
<
<
Comparison of the ATLAS HLT expected single-tau trigger efficiency in Run-I and Run-II simulations. The efficiency is computed for offline reconstructed tau candidates with transverse momentum above 20 GeV, one or three tracks and passing the offline medium identification criteria [Eur.Phys.J.C75(2015)303] in simulated Z→ ττ events, where one tau lepton decays leptonically and the other hadronically. The correspondent online tau candidate is required to have a transverse momentum of at least 35 GeV, between one and three tracks and passing the online medium identification. The efficiency is plotted as function of the transverse momentum of the offline tau candidate. Error bars are statistical uncertainties. The overall improvement in the trigger efficiency expected in Run-II is due to the new high-level trigger strategy which includes a more precise energy calibration, a faster tracking and an online identification requirement closer to the one used in the offline tau reconstruction. Eff_Full.stat_v6.png
[png][pdf][eps]
>
>
Comparison of the ATLAS HLT expected single-tau trigger efficiency in Run-I and Run-II simulations. The efficiency is computed for offline reconstructed tau candidates with transverse momentum above 20 GeV, one or three tracks and passing the offline medium identification criteria [Eur.Phys.J.C75(2015)303] in simulated Z→ ττ events, where one tau lepton decays leptonically and the other hadronically. The correspondent online tau candidate is required to have a transverse momentum of at least 35 GeV, between one and three tracks and passing the online medium identification. The efficiency is plotted as function of the transverse momentum of the offline tau candidate. Error bars are statistical uncertainties. The overall improvement in the trigger efficiency expected in Run-II is due to the new high-level trigger strategy which includes a more precise energy calibration, a faster tracking and an online identification requirement closer to the one used in the offline tau reconstruction. TurnOn_v0810-1.png
[png][pdf][eps]
 
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-PHYS-PUB-2015-025. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_pt.png
[png][pdf][eps]
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-PHYS-PUB-2015-025. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_eta.png
[png][pdf][eps]
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Deleted:
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  • L1_ALLTAU.png:
    L1_ALLTAU.png

  • c1404_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_eta.png:
    c1404_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_eta.png

  • Eff_Full.stat_v6.png:
    Eff_Full.stat_v6.png

  • L1_RATE_TAU_DI.png:
    L1_RATE_TAU_DI.png

  • c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_pt.png:
    c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_pt.png
 
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Added:
>
>
META FILEATTACHMENT attachment="TurnOn_v0810-1.pdf" attr="" comment="Updated efficiency plots" date="1439385874" name="TurnOn_v0810-1.pdf" path="TurnOn_v0810-1.pdf" size="15447" user="mbecking" version="1"
META FILEATTACHMENT attachment="TurnOn_v0810.eps" attr="" comment="Updated efficiency plots" date="1439385874" name="TurnOn_v0810.eps" path="TurnOn_v0810.eps" size="10527" user="mbecking" version="1"
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Revision 282015-07-26 - DanieleZanzi

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META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
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Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 single-tau and combined tau+X chains. ‘TAU’, ‘EM’, ‘J’ and ‘XE’ indicate the type of L1 object, tau, electron, jet or missing energy, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 30 GeV for L1 TAU30. ‘IM’ and ‘HI’ indicate that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_ALLTAU.png
[png][pdf][eps]
Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 di-tau chains. ‘TAU’ and ‘J’ indicate the type of L1 object, tau or jet, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 20 GeV for L1 TAU20. ‘IM’ indicates that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_RATE_TAU_DI.png
[png][pdf][eps]
Comparison of the ATLAS HLT expected single-tau trigger efficiency in Run-I and Run-II simulations. The efficiency is computed for offline reconstructed tau candidates with transverse momentum above 20 GeV, one or three tracks and passing the offline medium identification criteria [Eur.Phys.J.C75(2015)303] in simulated Z→ ττ events, where one tau lepton decays leptonically and the other hadronically. The correspondent online tau candidate is required to have a transverse momentum of at least 35 GeV, between one and three tracks and passing the online medium identification. The efficiency is plotted as function of the transverse momentum of the offline tau candidate. Error bars are statistical uncertainties. The overall improvement in the trigger efficiency expected in Run-II is due to the new high-level trigger strategy which includes a more precise energy calibration, a faster tracking and an online identification requirement closer to the one used in the offline tau reconstruction. Eff_Full.stat_v6.png
[png][pdf][eps]
Changed:
<
<
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-COM-PHYS-2015-633. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_pt.png
[png][pdf][eps]
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-COM-PHYS-2015-633. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_eta.png
[png][pdf][eps]
>
>
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-PHYS-PUB-2015-025. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_pt.png
[png][pdf][eps]
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-PHYS-PUB-2015-025. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_eta.png
[png][pdf][eps]
 

2012 Data @ 8 TeV

Revision 272015-07-20 - DanieleZanzi

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META TOPICPARENT name="AtlasResults"
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.
Added:
>
>

2015 Data @ 13 TeV

Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 single-tau and combined tau+X chains. ‘TAU’, ‘EM’, ‘J’ and ‘XE’ indicate the type of L1 object, tau, electron, jet or missing energy, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 30 GeV for L1 TAU30. ‘IM’ and ‘HI’ indicate that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_ALLTAU.png
[png][pdf][eps]
Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 di-tau chains. ‘TAU’ and ‘J’ indicate the type of L1 object, tau or jet, respectively. The digit before these names indicates the object multiplicity, while the digits after correspond to the ET requirement, e.g. a L1 ET > 20 GeV for L1 TAU20. ‘IM’ indicates that isolation requirements are applied. The data have been collected at a center-of-mass energy of 13 TeV in 2015, from the 6th to the 12th of July. L1_RATE_TAU_DI.png
[png][pdf][eps]
Comparison of the ATLAS HLT expected single-tau trigger efficiency in Run-I and Run-II simulations. The efficiency is computed for offline reconstructed tau candidates with transverse momentum above 20 GeV, one or three tracks and passing the offline medium identification criteria [Eur.Phys.J.C75(2015)303] in simulated Z→ ττ events, where one tau lepton decays leptonically and the other hadronically. The correspondent online tau candidate is required to have a transverse momentum of at least 35 GeV, between one and three tracks and passing the online medium identification. The efficiency is plotted as function of the transverse momentum of the offline tau candidate. Error bars are statistical uncertainties. The overall improvement in the trigger efficiency expected in Run-II is due to the new high-level trigger strategy which includes a more precise energy calibration, a faster tracking and an online identification requirement closer to the one used in the offline tau reconstruction. Eff_Full.stat_v6.png
[png][pdf][eps]
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-COM-PHYS-2015-633. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_pt.png
[png][pdf][eps]
Transverse momentum and pseudo-rapidity distributions of online tau candidates passing the HLT tau trigger with transverse momentum threshold at 35 GeV and online medium identification requirement. These tau candidates are observed in W→μν events and are likely to be jets originated from quarks or gluons that are reconstructed as tau jets and accepted by the tau trigger. Such fake tau candidates represent the dominant source of background in the measurement of the performance of the tau trigger for real tau leptons in Z→𝜏𝜏 events. Data has been recorded in the first 13 TeV collisions in 2015. Events have been selected as described in ATL-COM-PHYS-2015-633. Only statistical uncertainties are shown. c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_eta.png
[png][pdf][eps]
 

2012 Data @ 8 TeV

Line: 170 to 177
 
Added:
>
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  • L1_ALLTAU.png:
    L1_ALLTAU.png

  • c1404_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_eta.png:
    c1404_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_eta.png

  • Eff_Full.stat_v6.png:
    Eff_Full.stat_v6.png

  • L1_RATE_TAU_DI.png:
    L1_RATE_TAU_DI.png

  • c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_pt.png:
    c1403_trig_wjets_HLT_tau35_medium1_tracktwo_tauTrig1_0_HLT_pt.png
 
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Added:
>
>
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Revision 262013-06-06 - SoshiTsuno

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META TOPICPARENT name="AtlasResults"
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The measured resolution of the transverse energy (pT), with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, at the second level of the ATLAS tau trigger chain in 2012 (level two, L2). The resolution is measured with the full ATLAS 2012 dataset (20.3 fb-1), using a tag-and-probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). Data (dots) are compared to the simulation of the background and signal PDFs (stacked filled histograms). The statistical errors on the sum of the signal and background PDFs are shown (grey, hashed). The signal process, where a Z boson decays into two tau leptons, is shown in blue. The W+jets background, where a real muon comes from the W decay and a jet is misidentified as a hadronic tau candidate, is shown in yellow. The ‘Same Sign’ background, dominated by QCD multi-jet production where one jet fakes a prompt muon and the other fakes a hadronic tau candidate, is shown in green. This background is estimated in a data-driven manner from same-sign data events. The remaining SM processes which have smaller contributions, such as Z boson decays into two muons or two electrons, are shown in brown. The reconstructed energy at L2 is overestimated since it is a scalar sum of energy deposits within a square Region of Interest (RoI), and so it is sensitive to the geometry of the RoI. tau_trig_2012_resL2_pt.png
[png] [eps]
The measured resolution of the transverse energy (pT), with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, at the final level of the ATLAS tau trigger chain in 2012 (event filter, EF). The resolution is measured with the full ATLAS 2012 dataset (20.3 fb-1), using a tag-and-probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). Data (dots) are compared to the simulation of the background and signal PDFs (stacked filled histograms). The statistical errors on the sum of the signal and background PDFs are shown (grey, hashed). The signal process, where a Z boson decays into two tau leptons, is shown in blue. The W+jets background, where a real muon comes from the W decay and a jet is misidentified as a hadronic tau candidate, is shown in yellow. The ‘Same Sign’ background, dominated by QCD multi-jet production where one jet fakes a prompt muon and the other fakes a hadronic tau candidate, is shown in green. This background is estimated in a data-driven manner from same-sign data events. The remaining SM processes which have smaller contributions, such as Z boson decays into two muons or two electrons, are shown in brown. tau_trig_2012_resEF_pt.png
[png] [eps]
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Plots for ICHEP 2012 ATL-COM-DAQ-2012-139

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Plots for ICHEP 2012 ATL-COM-DAQ-2012-139 (Obsolete)

Note that they are obsolete. Please use the plots with full dataset (20.3fb-1).

 
Efficiency of tau20_medium1 trigger, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of number of vertices measured in 2012 data. The trigger efficiency is measured using a tag and probe analysis with Z -> τ_mu τ_h events following the offline tau identification efficiency measurement in ATLAS-CONF-2011-152. The term tau20_medium1 implies a 20 GeV requirement on the transverse energy, number of tracks restricted up to 3 and medium selections on the BDT score at EF. ichep2012_eff_vs_nvtx_2012.png
[png] [eps]
Efficiency of tau20_medium1 trigger, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of offline tau pT measured in 2012 data. The trigger efficiency is measured using a tag and probe analysis with Z -> τ_mu τ_h events following the offline tau identification efficiency measurement in ATLAS-CONF-2011-152. The term tau20_medium1 implies a 20 GeV requirement on the transverse energy, number of tracks restricted up to 3 and medium selections on the BDT score at EF. ichep2012_BDTeff_vs_pt_2012.png
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Revision 252013-06-06 - SoshiTsuno

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The tau trigger efficiency, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of the offline tau transverse energy (pT). The trigger efficiency is measured with the full 2012 ATLAS dataset (20.3 fb­‐1), using a tag-­and-­probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). The tau trigger considered here has calorimetric isolation and a pT threshold of 11 GeV at L1, a 20 GeV requirement on pT, the number of tracks restricted to three or less, and medium selection on the BDT score at the EF. The error bars correspond to the statistical uncertainty on the efficiency. tau_trig_2012_eff_L1L2EF_pt.png
[png] [eps]
The tau trigger efficiency, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of the number of primary vertices. The trigger efficiency is measured with the full 2012 ATLAS dataset (20.3 fb-1), using a tag-­and­‐probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). The tau trigger considered here has calorimetric isolation and a pT threshold of 11 GeV at L1, a 20 GeV requirement on pT, the number of tracks restricted to three or less, and medium selection on the BDT score at the EF. To ensure the efficiency is measured on the plateau of this tau trigger, a threshold of 30 GeV is applied to the offline transverse energy (pT). The error bars correspond to the statistical uncertainty on the efficiency. tau_trig_2012_eff_L1L2EF_nvxp.png
[png] [eps]
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The measured tau trigger efficiencies in both data and simulation, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of offline tau transverse energy (pT). The trigger efficiency is measured with the full 2012 ATLAS dataset (20.3 fb-1), using a tag-and-probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). The ratio of the efficiency in data to that in simulation is also shown. The uncertainty bands on the ratio correspond to the statistical uncertainties associated to the data and simulation, and the systematic uncertainty associated to the background subtraction in data. The tau trigger considered here has calorimetric isolation and a pT threshold of 11 GeV at L1, a 20 GeV requirement pT, the number of tracks restricted to three or less, and medium selection on the BDT score at the EF. tau_trig_2012_eff_DataMC_pt.png
[png] [eps]
The measured resolution of the transverse energy (pT), with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, at the first level of the ATLAS tau trigger chain in 2012 (level one, L1). The resolution is measured with the full ATLAS 2012 dataset (20.3 fb-1), using a tag-and-probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). Data (dots) are compared to the simulation of the background and signal PDFs (stacked filled histograms). The statistical errors on the sum of the signal and background PDFs are shown (grey, hashed). The signal process, where a Z boson decays into two tau leptons, is shown in blue. The W+jets background, where a real muon comes from the W decay and a jet is misidentified as a hadronic tau candidate, is shown in yellow. The ‘Same Sign’ background, dominated by QCD multi-jet production where one jet fakes a prompt muon and the other fakes a hadronic tau candidate, is shown in green. This background is estimated in a data-driven manner from same-sign data events. The remaining SM processes which have smaller contributions, such as Z boson decays into two muons or two electrons, are shown in brown. The reconstructed energy at L1 is underestimated due to the lack of calibration at this trigger level. tau_trig_2012_resL1_pt.png
[png] [eps]
The measured resolution of the transverse energy (pT), with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, at the second level of the ATLAS tau trigger chain in 2012 (level two, L2). The resolution is measured with the full ATLAS 2012 dataset (20.3 fb-1), using a tag-and-probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). Data (dots) are compared to the simulation of the background and signal PDFs (stacked filled histograms). The statistical errors on the sum of the signal and background PDFs are shown (grey, hashed). The signal process, where a Z boson decays into two tau leptons, is shown in blue. The W+jets background, where a real muon comes from the W decay and a jet is misidentified as a hadronic tau candidate, is shown in yellow. The ‘Same Sign’ background, dominated by QCD multi-jet production where one jet fakes a prompt muon and the other fakes a hadronic tau candidate, is shown in green. This background is estimated in a data-driven manner from same-sign data events. The remaining SM processes which have smaller contributions, such as Z boson decays into two muons or two electrons, are shown in brown. The reconstructed energy at L2 is overestimated since it is a scalar sum of energy deposits within a square Region of Interest (RoI), and so it is sensitive to the geometry of the RoI. tau_trig_2012_resL2_pt.png
[png] [eps]
The measured resolution of the transverse energy (pT), with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, at the final level of the ATLAS tau trigger chain in 2012 (event filter, EF). The resolution is measured with the full ATLAS 2012 dataset (20.3 fb-1), using a tag-and-probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). Data (dots) are compared to the simulation of the background and signal PDFs (stacked filled histograms). The statistical errors on the sum of the signal and background PDFs are shown (grey, hashed). The signal process, where a Z boson decays into two tau leptons, is shown in blue. The W+jets background, where a real muon comes from the W decay and a jet is misidentified as a hadronic tau candidate, is shown in yellow. The ‘Same Sign’ background, dominated by QCD multi-jet production where one jet fakes a prompt muon and the other fakes a hadronic tau candidate, is shown in green. This background is estimated in a data-driven manner from same-sign data events. The remaining SM processes which have smaller contributions, such as Z boson decays into two muons or two electrons, are shown in brown. tau_trig_2012_resEF_pt.png
[png] [eps]
 

Plots for ICHEP 2012 ATL-COM-DAQ-2012-139

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META FILEATTACHMENT attachment="tau_trig_2012_eff_DataMC_pt.png" attr="h" comment="" date="1370526767" name="tau_trig_2012_eff_DataMC_pt.png" path="tau_trig_2012_eff_DataMC_pt.png" size="25116" user="stsuno" version="1"
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META FILEATTACHMENT attachment="tau_trig_2012_resL2_pt.eps" attr="h" comment="" date="1370528138" name="tau_trig_2012_resL2_pt.eps" path="tau_trig_2012_resL2_pt.eps" size="49592" user="stsuno" version="1"
META FILEATTACHMENT attachment="tau_trig_2012_resEF_pt.eps" attr="h" comment="" date="1370528158" name="tau_trig_2012_resEF_pt.eps" path="tau_trig_2012_resEF_pt.eps" size="46601" user="stsuno" version="1"

Revision 242013-06-06 - SoshiTsuno

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META TOPICPARENT name="AtlasResults"
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2012 Data @ 8 TeV

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Plots for Summer 2013

The tau trigger efficiency, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of the offline tau transverse energy (pT). The trigger efficiency is measured with the full 2012 ATLAS dataset (20.3 fb­‐1), using a tag-­and-­probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). The tau trigger considered here has calorimetric isolation and a pT threshold of 11 GeV at L1, a 20 GeV requirement on pT, the number of tracks restricted to three or less, and medium selection on the BDT score at the EF. The error bars correspond to the statistical uncertainty on the efficiency. tau_trig_2012_eff_L1L2EF_pt.png
[png] [eps]
The tau trigger efficiency, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of the number of primary vertices. The trigger efficiency is measured with the full 2012 ATLAS dataset (20.3 fb-1), using a tag-­and­‐probe analysis with Z -> τ_mu τ_had events similar to that described in the 2011 ATLAS tau trigger performance conference paper (ATLAS‐CONF­‐2013­‐006). The tau trigger considered here has calorimetric isolation and a pT threshold of 11 GeV at L1, a 20 GeV requirement on pT, the number of tracks restricted to three or less, and medium selection on the BDT score at the EF. To ensure the efficiency is measured on the plateau of this tau trigger, a threshold of 30 GeV is applied to the offline transverse energy (pT). The error bars correspond to the statistical uncertainty on the efficiency. tau_trig_2012_eff_L1L2EF_nvxp.png
[png] [eps]
 

Plots for ICHEP 2012 ATL-COM-DAQ-2012-139

Efficiency of tau20_medium1 trigger, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of number of vertices measured in 2012 data. The trigger efficiency is measured using a tag and probe analysis with Z -> τ_mu τ_h events following the offline tau identification efficiency measurement in ATLAS-CONF-2011-152. The term tau20_medium1 implies a 20 GeV requirement on the transverse energy, number of tracks restricted up to 3 and medium selections on the BDT score at EF. ichep2012_eff_vs_nvtx_2012.png
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META FILEATTACHMENT attachment="ichep2012_trigrate_may14-Jun18.png" attr="h" comment="" date="1340639300" name="ichep2012_trigrate_may14-Jun18.png" path="ichep2012_trigrate_may14-Jun18.png" size="33269" user="stsuno" version="1"
META FILEATTACHMENT attachment="Eff_EFL2L1_taupt.eps" attr="" comment="" date="1369941131" name="Eff_EFL2L1_taupt.eps" path="Eff_EFL2L1_taupt.eps" size="12540" user="prados" version="1"
META FILEATTACHMENT attachment="Eff_EFL2L1_taupt.png" attr="" comment="" date="1369941193" name="Eff_EFL2L1_taupt.png" path="Eff_EFL2L1_taupt.png" size="21798" user="prados" version="1"
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META FILEATTACHMENT attachment="tau_trig_2012_eff_L1L2EF_pt.png" attr="h" comment="" date="1370521566" name="tau_trig_2012_eff_L1L2EF_pt.png" path="tau_trig_2012_eff_L1L2EF_pt.png" size="22098" user="stsuno" version="1"
META FILEATTACHMENT attachment="tau_trig_2012_eff_L1L2EF_pt.eps" attr="h" comment="" date="1370521828" name="tau_trig_2012_eff_L1L2EF_pt.eps" path="tau_trig_2012_eff_L1L2EF_pt.eps" size="12512" user="stsuno" version="1"
META FILEATTACHMENT attachment="tau_trig_2012_eff_L1L2EF_nvxp.eps" attr="h" comment="" date="1370522745" name="tau_trig_2012_eff_L1L2EF_nvxp.eps" path="tau_trig_2012_eff_L1L2EF_nvxp.eps" size="18394" user="stsuno" version="1"
META FILEATTACHMENT attachment="tau_trig_2012_eff_L1L2EF_nvxp.png" attr="h" comment="" date="1370522763" name="tau_trig_2012_eff_L1L2EF_nvxp.png" path="tau_trig_2012_eff_L1L2EF_nvxp.png" size="23067" user="stsuno" version="1"

Revision 232013-05-30 - PereRados

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META FILEATTACHMENT attachment="ichep2012_trigrate_may14-Jun18.eps" attr="h" comment="" date="1340639300" name="ichep2012_trigrate_may14-Jun18.eps" path="ichep2012_trigrate_may14-Jun18.eps" size="31762" user="stsuno" version="1"
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META FILEATTACHMENT attachment="Eff_EFL2L1_taupt.eps" attr="" comment="" date="1369941131" name="Eff_EFL2L1_taupt.eps" path="Eff_EFL2L1_taupt.eps" size="12540" user="prados" version="1"
META FILEATTACHMENT attachment="Eff_EFL2L1_taupt.png" attr="" comment="" date="1369941193" name="Eff_EFL2L1_taupt.png" path="Eff_EFL2L1_taupt.png" size="21798" user="prados" version="1"

Revision 222012-08-22 - SoshiTsuno

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Revision 212012-06-25 - SoshiTsuno

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2012 Data @ 8 TeV

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Plots for ICHEP 2012 ATL-COM-DAQ-2012-139

Efficiency of tau20_medium1 trigger, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of number of vertices measured in 2012 data. The trigger efficiency is measured using a tag and probe analysis with Z -> τ_mu τ_h events following the offline tau identification efficiency measurement in ATLAS-CONF-2011-152. The term tau20_medium1 implies a 20 GeV requirement on the transverse energy, number of tracks restricted up to 3 and medium selections on the BDT score at EF. ichep2012_eff_vs_nvtx_2012.png
[png] [eps]
Efficiency of tau20_medium1 trigger, with respect to the offline tau candidates identified by the Boosted Decision Tree (BDT) algorithm, as a function of offline tau pT measured in 2012 data. The trigger efficiency is measured using a tag and probe analysis with Z -> τ_mu τ_h events following the offline tau identification efficiency measurement in ATLAS-CONF-2011-152. The term tau20_medium1 implies a 20 GeV requirement on the transverse energy, number of tracks restricted up to 3 and medium selections on the BDT score at EF. ichep2012_BDTeff_vs_pt_2012.png
[png] [eps]
Shown are the trigger rates, for single and combined tau triggers, at EF as a function of instantaneous luminosity. The numerical figures in the name of each trigger chain correspond to the thresholds applied at EF. The symbol “xe” represents the missing transverse energy. ichep2012_trigrate_may14-Jun18.png
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Plots for L2 ATL-COM-DAQ-2012-086

ΔZ0 distribution taken from 2012 (8 TeV) data, with a peak of eighteen interactions per bunch crossing. The ΔZ0 of a track associated with an L2 tau trigger object is defined as the Z0 difference with respect to the lead track Z0. Large values of ΔZ0 correspond to pileup tracks. A Lorentzian function is fitted to the distribution and the quoted value of σ integrates 68% of the area of the central peak. Dependence of the trigger variables on pileup is avoided when only tracks with -2mm < ΔZ0 < 2mm are considered. DatadZ0_convert.png
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META FILEATTACHMENT attachment="ZMCSumPtRatio_convert.png" attr="h" comment="" date="1338370540" name="ZMCSumPtRatio_convert.png" path="ZMCSumPtRatio_convert.png" size="25476" user="ccuenca" version="1"
META FILEATTACHMENT attachment="ZMCdZ0_i_convert.png" attr="h" comment="" date="1338370539" name="ZMCdZ0_i_convert.png" path="ZMCdZ0_i_convert.png" size="29255" user="ccuenca" version="1"
META FILEATTACHMENT attachment="DatadZ0_convert.png" attr="h" comment="" date="1338370539" name="DatadZ0_convert.png" path="DatadZ0_convert.png" size="20747" user="ccuenca" version="1"
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META FILEATTACHMENT attachment="ichep2012_BDTeff_vs_pt_2012.eps" attr="h" comment="" date="1340639300" name="ichep2012_BDTeff_vs_pt_2012.eps" path="ichep2012_BDTeff_vs_pt_2012.eps" size="14906" user="stsuno" version="1"
META FILEATTACHMENT attachment="ichep2012_BDTeff_vs_pt_2012.png" attr="h" comment="" date="1340639300" name="ichep2012_BDTeff_vs_pt_2012.png" path="ichep2012_BDTeff_vs_pt_2012.png" size="19353" user="stsuno" version="1"
META FILEATTACHMENT attachment="ichep2012_eff_vs_nvtx_2012.eps" attr="h" comment="" date="1340639300" name="ichep2012_eff_vs_nvtx_2012.eps" path="ichep2012_eff_vs_nvtx_2012.eps" size="16821" user="stsuno" version="1"
META FILEATTACHMENT attachment="ichep2012_eff_vs_nvtx_2012.png" attr="h" comment="" date="1340639300" name="ichep2012_eff_vs_nvtx_2012.png" path="ichep2012_eff_vs_nvtx_2012.png" size="21046" user="stsuno" version="1"
META FILEATTACHMENT attachment="ichep2012_trigrate_may14-Jun18.eps" attr="h" comment="" date="1340639300" name="ichep2012_trigrate_may14-Jun18.eps" path="ichep2012_trigrate_may14-Jun18.eps" size="31762" user="stsuno" version="1"
META FILEATTACHMENT attachment="ichep2012_trigrate_may14-Jun18.png" attr="h" comment="" date="1340639300" name="ichep2012_trigrate_may14-Jun18.png" path="ichep2012_trigrate_may14-Jun18.png" size="33269" user="stsuno" version="1"

Revision 202012-05-30 - SoshiTsuno

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META TOPICPARENT name="AtlasResults"
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 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.
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L2 for 2012: Data and MC

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2012 Data @ 8 TeV

 
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Plots from ATL-COM-DAQ-2012-086

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Plots for L2 ATL-COM-DAQ-2012-086

 
ΔZ0 distribution taken from 2012 (8 TeV) data, with a peak of eighteen interactions per bunch crossing. The ΔZ0 of a track associated with an L2 tau trigger object is defined as the Z0 difference with respect to the lead track Z0. Large values of ΔZ0 correspond to pileup tracks. A Lorentzian function is fitted to the distribution and the quoted value of σ integrates 68% of the area of the central peak. Dependence of the trigger variables on pileup is avoided when only tracks with -2mm < ΔZ0 < 2mm are considered. DatadZ0_convert.png
[png] [eps] [pdf]
ΔZ0 distribution from Z->ττ MC events with an average of eight interactions per bunch crossing. The ΔZ0 of a track associated with an L2 tau trigger object is defined as the Z0 difference with respect to the lead track Z0. Large values of ΔZ0 correspond to pileup tracks. The wide Gaussian distribution corresponds to pileup tracks while the central peak, displayed in the upper right hand side corner, corresponds to the main interaction tracks. A Lorentzian function is fitted to the central peak and the quoted value of the σ integrates 68% of the area. Dependence of the trigger variables on pileup is avoided when only tracks with -2mm < ΔZ0 < 2mm are considered. ZMCdZ0_i_convert.png
[png] [eps] [pdf]
Average L2 SumPtRatio as a function of the average number of interactions per bunch crossing in Z->ττ events. The SumPtRatio is the ratio of the scalar sum of the pT of all the tracks in the isolation region, defined as annulus 0.1<ΔR<0.3 with respect to the leading track in the RoI, to the scalar sum of the pT of all the tracks in the core region, defined as the ΔR<0.1 cone around the leading track. The ΔZ0 of a track associated with an L2 tau trigger object is defined as the Z0 distance with respect to the lead track. Pileup dependence is avoided when only tracks with -2mm < ΔZ0 < 2mm are considered. ZMCSumPtRatio_convert.png
[png] [eps] [pdf]
Marginal efficiencies for L2 SumPtRatio as well as L2 EM radius calculated in cones of ΔR < 0.2 and 0.4 are shown as a function of the average number of interactions per bunch crossing. EM radius is the electromagnetic energy weighted radius and SumPtRatio is the ratio of the scalar sum of pT of all tracks in an isolation region to that in a core region. The isolation region is the annulus 0.1<ΔR<0.3 around the direction of the highest momentum track, while the core region is defined to be a cone of radius ΔR<0.1. Average number of interactions per bunch crossing provides a measure of pileup. These marginal efficiencies have been calculated with respect to a specific L2 trigger selection optimized for low pT taus, L2_tau20_medium1. L2ConeComparison_convert.png
[png] [eps] [pdf]
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2012 Data @ 8 TeV

 

Plots for CHEP 2012 ATL-COM-DAQ-2012-035

Efficiency with respect to the offline identified tau candidates as a function of number of vertices measured in 2011. The efficiency of the tau20_medium trigger measured using a tag and probe analysis with Z ­‐> ττ ­‐> μh events collected by ATLAS in 2011. The term tau20_medium implies a 20 GeV requirement on the transverse energy at EF and medium selections on the shower shape variables. The analysis follows closely the tau ID efficiency measurement ATLAS-CONF­-2011-­152. chep2012_eff_vs_nvtx_2011.png
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Revision 192012-05-30 - CristobalCuencaAlmenar

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META TOPICPARENT name="AtlasResults"
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  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:
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L2 for 2012: Data and MC

Plots from ATL-COM-DAQ-2012-086

ΔZ0 distribution taken from 2012 (8 TeV) data, with a peak of eighteen interactions per bunch crossing. The ΔZ0 of a track associated with an L2 tau trigger object is defined as the Z0 difference with respect to the lead track Z0. Large values of ΔZ0 correspond to pileup tracks. A Lorentzian function is fitted to the distribution and the quoted value of σ integrates 68% of the area of the central peak. Dependence of the trigger variables on pileup is avoided when only tracks with -2mm < ΔZ0 < 2mm are considered. DatadZ0_convert.png
[png] [eps] [pdf]
ΔZ0 distribution from Z->ττ MC events with an average of eight interactions per bunch crossing. The ΔZ0 of a track associated with an L2 tau trigger object is defined as the Z0 difference with respect to the lead track Z0. Large values of ΔZ0 correspond to pileup tracks. The wide Gaussian distribution corresponds to pileup tracks while the central peak, displayed in the upper right hand side corner, corresponds to the main interaction tracks. A Lorentzian function is fitted to the central peak and the quoted value of the σ integrates 68% of the area. Dependence of the trigger variables on pileup is avoided when only tracks with -2mm < ΔZ0 < 2mm are considered. ZMCdZ0_i_convert.png
[png] [eps] [pdf]
Average L2 SumPtRatio as a function of the average number of interactions per bunch crossing in Z->ττ events. The SumPtRatio is the ratio of the scalar sum of the pT of all the tracks in the isolation region, defined as annulus 0.1<ΔR<0.3 with respect to the leading track in the RoI, to the scalar sum of the pT of all the tracks in the core region, defined as the ΔR<0.1 cone around the leading track. The ΔZ0 of a track associated with an L2 tau trigger object is defined as the Z0 distance with respect to the lead track. Pileup dependence is avoided when only tracks with -2mm < ΔZ0 < 2mm are considered. ZMCSumPtRatio_convert.png
[png] [eps] [pdf]
Marginal efficiencies for L2 SumPtRatio as well as L2 EM radius calculated in cones of ΔR < 0.2 and 0.4 are shown as a function of the average number of interactions per bunch crossing. EM radius is the electromagnetic energy weighted radius and SumPtRatio is the ratio of the scalar sum of pT of all tracks in an isolation region to that in a core region. The isolation region is the annulus 0.1<ΔR<0.3 around the direction of the highest momentum track, while the core region is defined to be a cone of radius ΔR<0.1. Average number of interactions per bunch crossing provides a measure of pileup. These marginal efficiencies have been calculated with respect to a specific L2 trigger selection optimized for low pT taus, L2_tau20_medium1. L2ConeComparison_convert.png
[png] [eps] [pdf]

 

2012 Data @ 8 TeV

Plots for CHEP 2012 ATL-COM-DAQ-2012-035

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Revision 182012-05-11 - SoshiTsuno

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  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.
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2012 Data @ 8 TeV

Plots for CHEP 2012 ATL-COM-DAQ-2012-035

Efficiency with respect to the offline identified tau candidates as a function of number of vertices measured in 2011. The efficiency of the tau20_medium trigger measured using a tag and probe analysis with Z ­‐> ττ ­‐> μh events collected by ATLAS in 2011. The term tau20_medium implies a 20 GeV requirement on the transverse energy at EF and medium selections on the shower shape variables. The analysis follows closely the tau ID efficiency measurement ATLAS-CONF­-2011-­152. chep2012_eff_vs_nvtx_2011.png
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Expected efficiency in 2012 with respect to the offline identified tau candidates as a function of number of vertices. The tau trigger is rerun on the full 2011 dataset from unbiased Z ­‐> ττ ‐> μh events, where muon trigger is used to collect Z ­‐> ττ ‐> μh data and measure the efficiency of the tau20_medium trigger by a tag and probe method. The term tau20_medium implies a 20 GeV requirement on the transverse energy at EF and medium selections on the shower shape variables. In 2012, smaller calorimeter cone size of 0.2 compared to 0.4 in 2011 and implementation of ΔZ selection with respect to the leading track (abs(ΔZ) < 2mm) will provide robustness against pile-­up. The analysis follows closely the tau ID efficiency measurement ATLAS-­CONF-­2011-­152. chep2012_eff_vs_nvtx_expected2012.png
[png] [eps]
Expected efficiency in 2012 with respect to the offline identified tau candidates as a function of the offline tau pT. The tau trigger is rerun on the full 2011 dataset from unbiased Z ‐> ττ ‐> μh events, where muon trigger is used to collect Z ‐> ττ ­‐> μh data and measure the efficiency of the tau20_medium trigger by a tag and probe method. The selection applied at EF is based on multivariate technique. The figure is based on Boosted Decision Tree method. In 2012, the BDT-­‐based tau triggers will be used as the baseline. chep2012_BDTeff_vs_pt_expected2012.png
[png] [eps]
Expected efficiency in 2012 with respect to the offline identified tau candidates as a function of the offline tau pT. The tau trigger is rerun on the full 2011 dataset from unbiased Z ‐> ττ ‐> μh events, where muon trigger is used to collect Z ‐> ττ ­‐> μh data and measure the efficiency of the tau20_medium trigger by a tag and probe method. The selection applied at EF is based on multivariate technique. The figure is based on log-likelihood method. In 2012, the BDT-­‐based tau triggers will be used as the baseline. chep2012_LLHeff_vs_pt_expected2012.png
[png] [eps]
Performance of the multivariate‐based tau triggers at EF. The signal efficiency is defined with respect to the offline identified tau candidates from the truth tau and the background rejection is from a jet. The figure shows 1‐prong tau trigger candidates for BDT-­ and LLH-­based triggers. The trigger decision is optimized to be 85% and 80% with respect to the offline candidates for 1­‐prong and multi-­prong, respectively. chep2012_EFsignal_vs_rejection_1prong.png
[png] [eps]
Performance of the multivariate‐based tau triggers at EF. The signal efficiency is defined with respect to the offline identified tau candidates from the truth tau and the background rejection is from a jet. The figure shows multi‐prong tau trigger candidates for BDT-­ and LLH-­based triggers. The trigger decision is optimized to be 85% and 80% with respect to the offline candidates for 1­‐prong and multi-­prong, respectively. chep2012_EFsignal_vs_rejection_multiprong.png
[png] [eps]
Shown are the trigger rates as a function of instantaneous luminosity for combined tau triggers. A linear rise in rates is seen in data taken after the April technical stop. This is due to the small cone size (0.2) and implementation of ΔZ selection with respect to the leading track (abs(ΔZ) < 2mm) at the HLT. The numerical figures in the name of each trigger chain correspond to the transverse energy or momentum threshold applied at EF. chep2012_trigrate_may1-9.png
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2011 Data @ 7 TeV

Plots for Winter 2012 ATL-COM-DAQ-2012-001

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Revision 172012-01-30 - MPilarCasado

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Revision 162012-01-28 - MansooraShamim

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Revision 152012-01-28 - MansooraShamim

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META TOPICPARENT name="AtlasResults"
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Event Filter output rates versus the instantaneous luminosity measured by ATLAS for selected HLT tau chains. The numbers in the item names correspond to ET requirements at EF for a given trigger type, e.g. an electron candidate with ET > 15 GeV in e15. The saturation in the rates of single tau trigger and a not fully linear increase in combined triggers are due to the 0.4 cone size used to calculate the energy at L2 and EF, which is found to be very sensitive to high pile-up. The data have been collected at a center-of-mass energy of 7 TeV in August 2011. periodK.png
[png] [eps]
Event Filter output rates versus the instantaneous luminosity measured by ATLAS for selected HLT tau chains. The numbers in the item names correspond to ET requirements at EF for a given trigger type, missing transverse energy > 35 GeV in xe35. MET significance, denoted by xs, is defined as MET/(a(sqrt(SumEt)-b)) where a, b are constants determined from the data. In an item containing xsZ term, the trigger requires xs to be above Z/10. The decrease in tau+xs triggers rate is due to the increase in the SumEt at high luminosity. The data have been collected at a center-of-mass energy of 7 TeV in August 2011. periodK2.png
[png] [eps]
Event Filter output rates versus the instantaneous luminosity measured by ATLAS for selected HLT tau chains collected from September to October 2011. The numbers in the item names correspond to ET requirements at EF for a given trigger type, e.g. an electron candidate with ET > 15 GeV in e15vh, where vh implies that the η dependent ET selections were applied at L1 and the energy in core of the hadronic calorimeter is required to be smaller than 1 GeV. The data have been collected at a center-of-mass energy of 7 TeV in 2011. periodL.png
[png] [eps]
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Efficiency of the EF_tau16_loose trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau16_loose implies a 16 GeV requirement on the transverse energy and very loose selections on the shower shape variables of an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Efficiency of the EF_tau20_medium1 trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau20_medium1 implies a 20 GeV requirement on the transverse energy, medium selections on the shower shape variables and strict requirement on the number of tracks for an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Efficiency of the EF_tau29_medium trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau29_medium implies a 29 GeV requirement on the transverse energy, medium selections on the shower shape variables for an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Efficiency of the EF_tau29_medium1 trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau29_medium1 implies a 29 GeV requirement on the transverse energy, medium selections on the shower shape variables and strict requirement on the number of tracks for an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L1 cluster energy with respect to the pT of offline tau candidates. The L1 object is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L1 η with respect to the η of offline tau candidates. The L1 object is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L1 φ with respect to the φ of offline tau candidates. The L1 object is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L2 tau pT with respect to the pT of offline tau candidates. The L2 tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L2 tau η with respect to the η of offline tau candidates. The L2 tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L2 tau φ with respect to the φ of offline tau candidates. The L2 tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the EF tau φ with respect to the φ of offline tau candidates. The EF tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Isolation energy of L1 objects associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Energy weighted radius of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Number of tracks of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Summed pT of tracks within ΔR<0.1 of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Total transverse energy within ΔR<0.4 of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency ATLAS-CONF-2011-152.
Energy weighted radius of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Ratio of the tau ET to the leading track pT of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Number of tracks of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
pT weighted track radius of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
>
>
Efficiency of the EF_tau16_loose trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau16_loose implies a 16 GeV requirement on the transverse energy and very loose selections on the shower shape variables of an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_tau16_loose_tau_pt_custom_fine.png
[png] [eps]
Efficiency of the EF_tau20_medium1 trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau20_medium1 implies a 20 GeV requirement on the transverse energy, medium selections on the shower shape variables and strict requirement on the number of tracks for an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_tau20_medium1_tau_pt_custom_fine.png
[png] [eps]
Efficiency of the EF_tau29_medium trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau29_medium implies a 29 GeV requirement on the transverse energy, medium selections on the shower shape variables for an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_tau29_medium_tau_pt_custom_fine.png
[png] [eps]
Efficiency of the EF_tau29_medium1 trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau29_medium1 implies a 29 GeV requirement on the transverse energy, medium selections on the shower shape variables and strict requirement on the number of tracks for an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_tau29_medium1_tau_pt_custom_fine.png
[png] [eps]
Resolution of the L1 cluster energy with respect to the pT of offline tau candidates. The L1 object is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_L1_ptres.png
[png] [eps]
Resolution of the L1 η with respect to the η of offline tau candidates. The L1 object is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_L1_etares.png
[png] [eps]
Resolution of the L1 φ with respect to the φ of offline tau candidates. The L1 object is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_L1_phires.png
[png] [eps]
Resolution of the L2 tau pT with respect to the pT of offline tau candidates. The L2 tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_L2_ptres.png
[png] [eps]
Resolution of the L2 tau η with respect to the η of offline tau candidates. The L2 tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_L2_etares.png
[png] [eps]
Resolution of the L2 tau φ with respect to the φ of offline tau candidates. The L2 tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_L2_phires.png
[png] [eps]
Resolution of the EF tau φ with respect to the φ of offline tau candidates. The EF tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_phires.png
[png] [eps]
Isolation energy of L1 objects associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_L1_EMIsol.png
[png] [eps]
Energy weighted radius of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_L2_EMRad.png
[png] [eps]
Number of tracks of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_L2_ntrack.png
[png] [eps]
Summed pT of tracks within ΔR<0.1 of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_L2_PtSumCore.png
[png] [eps]
Total transverse energy within ΔR<0.4 of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency ATLAS-CONF-2011-152. c_L2_etNor.png
[png] [eps]
Energy weighted radius of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_EMRad.png
[png] [eps]
Ratio of the tau ET to the leading track pT of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_etOverPtLead.png
[png] [eps]
Number of tracks of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_ntrack.png
[png] [eps]
pT weighted track radius of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152. c_EF_trkAvgDist.png
[png] [eps]
 

Plots for PostLP 2011 ATL-COM-DAQ-2011-065

EF_tau20_medium1 efficiency:
Efficiency of the EF\_tau20\_medium1 trigger chain with respect to offline reconstructed tau candidates, as a function of the offline $\pt$. The trigger includes a strict requirement on the number of tracks associated to the trigger object in addition to the regular 'medium' selection. The measurement was made using a tag and probe analysis with $Z\rightarrow\tau\tau\rightarrow\mu h$ events in 2011 data. The tau candidates are required to pass medium identification criteria. The analysis follows closely the method from the $Z\rightarrow\tau\tau$ cross-section measurement http://arxiv.org/abs/1108.2016.
EF_tau20_medium1_tau_Pt_Period-F-G_ToyMC.png
[png] [eps]
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Changed:
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META FILEATTACHMENT attachment="c_L1_phires.png" attr="" comment="" date="1327748314" name="c_L1_phires.png" path="c_L1_phires.png" size="416571" stream="c_L1_phires.png" tmpFilename="/usr/tmp/CGItemp54314" user="mshamim" version="1"
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Revision 142012-01-28 - WillDavey

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META TOPICPARENT name="AtlasResults"
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Revision 132012-01-28 - MansooraShamim

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META TOPICPARENT name="AtlasResults"
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Revision 122012-01-26 - MansooraShamim

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META TOPICPARENT name="AtlasResults"
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2011 Data @ 7 TeV

Added:
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Plots for Winter 2012 ATL-COM-DAQ-2012-001

Level 1 rates before prescale versus the instantaneous luminosity measured by ATLAS for L1 tau items that seed tau chains at HLT. The last digits in the L1 item name correspond to the ET requirement, e.g. a L1 ET > 11 GeV for L1 TAU11. The data have been collected at a center-of-mass energy of 7 TeV in 2011. ALlperiodL1.png
[png] [eps]
Cross-section (rate to luminosity ratio) versus the average number of interactions per bunch crossings measured by ATLAS for L1 tau items that seed tau chains at HLT. The last digits in the L1 item name correspond to the ET requirement, e.g. a L1 ET > 11 GeV for L1 TAU11. The data have been collected at a center-of-mass energy of 7 TeV in 2011. ALlperiodL1mu.png
[png] [eps]
Event Filter output rates versus the instantaneous luminosity measured by ATLAS for selected HLT tau chains. The numbers in the item names correspond to ET requirements at EF for a given trigger type, e.g. a muon candidate with ET > 15 GeV in mu15. The saturation in the rates of single and di-tau triggers, while a not fully linear increase in combined triggers are due to the 0.4 cone size used to calculate the energy at L2 and EF, which is found to be very sensitive to high pile-up. The data have been collected at a center-of-mass energy of 7 TeV from March to July in 2011. periodI.png
[png] [eps]
Event Filter output rates versus the instantaneous luminosity measured by ATLAS for selected HLT tau chains. The numbers in the item names correspond to ET requirements at EF for a given trigger type, e.g. an electron candidate with ET > 15 GeV in e15. The saturation in the rates of single tau trigger and a not fully linear increase in combined triggers are due to the 0.4 cone size used to calculate the energy at L2 and EF, which is found to be very sensitive to high pile-up. The data have been collected at a center-of-mass energy of 7 TeV in August 2011. periodK.png
[png] [eps]
Event Filter output rates versus the instantaneous luminosity measured by ATLAS for selected HLT tau chains. The numbers in the item names correspond to ET requirements at EF for a given trigger type, missing transverse energy > 35 GeV in xe35. MET significance, denoted by xs, is defined as MET/(a(sqrt(SumEt)-b)) where a, b are constants determined from the data. In an item containing xsZ term, the trigger requires xs to be above Z/10. The decrease in tau+xs triggers rate is due to the increase in the SumEt at high luminosity. The data have been collected at a center-of-mass energy of 7 TeV in August 2011. periodK2.png
[png] [eps]
Event Filter output rates versus the instantaneous luminosity measured by ATLAS for selected HLT tau chains collected from September to October 2011. The numbers in the item names correspond to ET requirements at EF for a given trigger type, e.g. an electron candidate with ET > 15 GeV in e15vh, where vh implies that the η dependent ET selections were applied at L1 and the energy in core of the hadronic calorimeter is required to be smaller than 1 GeV. The data have been collected at a center-of-mass energy of 7 TeV in 2011. periodL.png
[png] [eps]
Efficiency of the EF_tau16_loose trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau16_loose implies a 16 GeV requirement on the transverse energy and very loose selections on the shower shape variables of an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Efficiency of the EF_tau20_medium1 trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau20_medium1 implies a 20 GeV requirement on the transverse energy, medium selections on the shower shape variables and strict requirement on the number of tracks for an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Efficiency of the EF_tau29_medium trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau29_medium implies a 29 GeV requirement on the transverse energy, medium selections on the shower shape variables for an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Efficiency of the EF_tau29_medium1 trigger measured using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The term tau29_medium1 implies a 29 GeV requirement on the transverse energy, medium selections on the shower shape variables and strict requirement on the number of tracks for an EF tau candidate . The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L1 cluster energy with respect to the pT of offline tau candidates. The L1 object is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L1 η with respect to the η of offline tau candidates. The L1 object is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L1 φ with respect to the φ of offline tau candidates. The L1 object is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L2 tau pT with respect to the pT of offline tau candidates. The L2 tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L2 tau η with respect to the η of offline tau candidates. The L2 tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z -> ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the L2 tau φ with respect to the φ of offline tau candidates. The L2 tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Resolution of the EF tau φ with respect to the φ of offline tau candidates. The EF tau is required to be associated to the EF_tau20_medium1 chain and match to an offline probe tau within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Isolation energy of L1 objects associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Energy weighted radius of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Number of tracks of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Summed pT of tracks within ΔR<0.1 of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Total transverse energy within ΔR<0.4 of L2 taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency ATLAS-CONF-2011-152.
Energy weighted radius of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Ratio of the tau ET to the leading track pT of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
Number of tracks of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
pT weighted track radius of EF taus associated to the EF_tau20_medium1 chain and matched to offline probe taus within ΔR<0.2. The offline candidates are selected using a tag and probe analysis with Z ->ττ -> μh events collected by ATLAS during Summer 2011. The analysis follows closely the Tau ID efficiency measurement ATLAS-CONF-2011-152.
 

Plots for PostLP 2011 ATL-COM-DAQ-2011-065

EF_tau20_medium1 efficiency:
Efficiency of the EF\_tau20\_medium1 trigger chain with respect to offline reconstructed tau candidates, as a function of the offline $\pt$. The trigger includes a strict requirement on the number of tracks associated to the trigger object in addition to the regular 'medium' selection. The measurement was made using a tag and probe analysis with $Z\rightarrow\tau\tau\rightarrow\mu h$ events in 2011 data. The tau candidates are required to pass medium identification criteria. The analysis follows closely the method from the $Z\rightarrow\tau\tau$ cross-section measurement http://arxiv.org/abs/1108.2016.
EF_tau20_medium1_tau_Pt_Period-F-G_ToyMC.png
[png] [eps]
EF_tau29_medium1 efficiency:
Efficiency of the EF\_tau29\_medium1 trigger chain with respect to offline reconstructed tau candidates, as a function of the offline $\pt$. The trigger includes a strict requirement on the number of tracks associated to the trigger object in addition to the regular 'medium' selection. The measurement was made using a tag and probe analysis with $Z\rightarrow\tau\tau\rightarrow\mu h$ events in 2011 data. The tau candidates are required to pass medium identification criteria. The analysis follows closely the method from the $Z\rightarrow\tau\tau$ cross-section measurement http://arxiv.org/abs/1108.2016.
EF_tau29_medium1_tau_Pt_Period-F-G_ToyMC.png
[png] [eps]
Line: 226 to 255
 
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META FILEATTACHMENT attachment="periodK.png" attr="" comment="" date="1327598739" name="periodK.png" path="periodK.png" size="28971" stream="periodK.png" tmpFilename="/usr/tmp/CGItemp60884" user="mshamim" version="1"
META FILEATTACHMENT attachment="periodK2.eps" attr="" comment="" date="1327598755" name="periodK2.eps" path="periodK2.eps" size="26517" stream="periodK2.eps" tmpFilename="/usr/tmp/CGItemp60964" user="mshamim" version="1"
META FILEATTACHMENT attachment="periodK2.png" attr="" comment="" date="1327598770" name="periodK2.png" path="periodK2.png" size="24388" stream="periodK2.png" tmpFilename="/usr/tmp/CGItemp60885" user="mshamim" version="1"
META FILEATTACHMENT attachment="periodL.eps" attr="" comment="" date="1327598785" name="periodL.eps" path="periodL.eps" size="22178" stream="periodL.eps" tmpFilename="/usr/tmp/CGItemp60848" user="mshamim" version="1"
META FILEATTACHMENT attachment="periodL.png" attr="" comment="" date="1327598798" name="periodL.png" path="periodL.png" size="26616" stream="periodL.png" tmpFilename="/usr/tmp/CGItemp60866" user="mshamim" version="1"

Revision 112011-08-26 - MarcusMorgenstern

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META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
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2011 Data @ 7 TeV

Added:
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Plots for PostLP 2011 ATL-COM-DAQ-2011-065

EF_tau20_medium1 efficiency:
Efficiency of the EF\_tau20\_medium1 trigger chain with respect to offline reconstructed tau candidates, as a function of the offline $\pt$. The trigger includes a strict requirement on the number of tracks associated to the trigger object in addition to the regular 'medium' selection. The measurement was made using a tag and probe analysis with $Z\rightarrow\tau\tau\rightarrow\mu h$ events in 2011 data. The tau candidates are required to pass medium identification criteria. The analysis follows closely the method from the $Z\rightarrow\tau\tau$ cross-section measurement http://arxiv.org/abs/1108.2016.
EF_tau20_medium1_tau_Pt_Period-F-G_ToyMC.png
[png] [eps]
EF_tau29_medium1 efficiency:
Efficiency of the EF\_tau29\_medium1 trigger chain with respect to offline reconstructed tau candidates, as a function of the offline $\pt$. The trigger includes a strict requirement on the number of tracks associated to the trigger object in addition to the regular 'medium' selection. The measurement was made using a tag and probe analysis with $Z\rightarrow\tau\tau\rightarrow\mu h$ events in 2011 data. The tau candidates are required to pass medium identification criteria. The analysis follows closely the method from the $Z\rightarrow\tau\tau$ cross-section measurement http://arxiv.org/abs/1108.2016.
EF_tau29_medium1_tau_Pt_Period-F-G_ToyMC.png
[png] [eps]
L2 transverse energy:
Distribution of transverse energy in a cone of radius 0.4 around the tau direction at L2. The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the black points represent the data. A dijet selection has been applied to select the events in data.
EtNor.png
[png] [eps]
L2 track multiplicity:
Distribution of track multiplicity in a cone of radius 0.1 around the tau direction at L2. The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the black points represent the data. A dijet selection has been applied to select the events in data.
nCoreTracks.png
[png] [eps]
L2 scalar sum of transverse momentum of tracks:
Distribution of the scalar sum of transverse momentum of tracks in a cone of radius 0.1 around the tau direction at L2. The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the black points represent the data. A dijet selection has been applied to select the events in data.
PtCore.png
[png] [eps]
L2 electromagnetic radius:
Distribution of the electromagnetic radius, $R_{\mathrm{EM}}$, at L2. The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the black points represent the data. A dijet selection has been applied to select the events in data.
EMRadius.png
[png] [eps]
EF-offline comparision of track multiplicity:
Distribution of track multiplicity for Event Filter (EF) and offline reconstructed tau candidates. The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. Based on the limited information available, a looser selection is applied at EF level causing a slight shift on this distribution with respect to offline.
numTrack.png
[png] [eps]
EF-offline comparision of average track distance for 1-prong taus:
Distribution of $p_{\mathrm{T}}$ weighted track width, $R_{\mathrm{track}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 1 associated track (1-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. Based on the limited information available, a looser selection is applied at EF level causing a slight shift on this distribution with respect to offline.
TrkAvgDist1P.png
[png] [eps]
EF-offline comparision of average track distance for 3-prong taus:
Distribution of $p_{\mathrm{T}}$ weighted track width, $R_{\mathrm{track}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 3 associated track (3-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. Based on the limited information available, a looser selection is applied at EF level causing a slight shift on this distribution with respect to offline.
TrkAvgDist3P.png
[png] [eps]
EF-offline comparision of the electromagnetic radius for 1-prong taus:
Distribution of radius of energy deposits in electromagnetic calorimeters, $R_{\mathrm{EM}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 1 associated track (1-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. A less precise energy calibration applied at EF causes a shift on this distribution with respect to offline.
EMRadius1P.png
[png] [eps]
EF-offline comparision of the electromagnetic radius for 3-prong taus:
Distribution of radius of energy deposits in electromagnetic calorimeters, $R_{\mathrm{EM}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 3 associated track (3-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. A less precise energy calibration applied at EF causes a shift on this distribution with respect to offline.
EMRadius3P.png
[png] [eps]
EF-offline comparision of calorimeter radius for 1-prong taus:
Distribution of energy weighted radius of energy deposits in calorimeters, $R_{\mathrm{cal}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 1 associated track (1-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. A less precise energy calibration applied at EF causes a shift on this distribution with respect to offline.
CalRadius1P.png
[png] [eps]
EF-offline comparision of calorimeter radius for 3-prong taus:
Distribution of energy weighted radius of energy deposits in calorimeters, $R_{\mathrm{cal}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 3 associated track (3-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. A less precise energy calibration applied at EF causes a shift on this distribution with respect to offline.
CalRadius3P.png
[png] [eps]
EF-offline comparision of track momentum over leading track momentum for 1-prong taus:
Distribution of the fraction of the leading track momentum to the transverse tau energy, $f_{\mathrm{track}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 1 associated track (1-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. Based on the limited information available, a looser selection is applied at EF level causing a slight shift on this distribution with respect to offline.
etOverleadTrkPt1P.png
[png] [eps]
EF-offline comparision of track momentum over leading track momentum for 3-prong taus:
Distribution of the fraction of the leading track momentum to the transverse tau energy, $f_{\mathrm{track}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 3 associated track (3-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. Based on the limited information available, a looser selection is applied at EF level causing a slight shift on this distribution with respect to offline.
etOverleadTrkPt3P.png
[png] [eps]
EF-offline comparision of centrality fraction for 1-prong taus:
Distribution of the ratio of the transverse energy in a cone of radius 0.1 to the transverse energy in a larger cone of radius 0.4 around the tau direction, $f_{\mathrm{core}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 1 associated track (1-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. A less precise energy calibration applied at EF causes a shift on this distribution with respect to offline.
CentFrac1P.png
[png] [eps]
EF-offline comparision of centrality fraction for 3-prong taus:
Distribution of the ratio of the transverse energy in a cone of radius 0.1 to the transverse energy in a larger cone of radius 0.4 around the tau direction, $f_{\mathrm{core}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 3 associated track (3-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. A less precise energy calibration applied at EF causes a shift on this distribution with respect to offline.
CentFrac3P.png
[png] [eps]
 

Plots for PLHC 2011 ATL-COM-DAQ-2011-035

tau16_loose efficiency with simulation:
Fraction of the offline tau candidates with tight cut-based identification passing L1, L2 and EF of the tau16_loose trigger as a function of the calibrated ET of the offline tau candidate. Distributions are produced from Monte-Carlo (MC) Z->tau tau events. The ET requirements are 7 GeV at L1, 12 GeV at L2 and 16 GeV at EF. Loose selection corresponds to softer cuts on shower shape variables at trigger level than used in offline.
tau16_loose_Ztautau_menutest_plotapproval.png
[png] [eps]
Line: 21 to 40
 
L1 rate before prescale:
Level 1 (L1) rates before prescale versus the instantaneous luminosity measured by ATLAS for four different L1 tau items that are feeding primary High Level Trigger (HLT) tau chains. The last digits in the L1 item name correspond to the ET requirement, e.g. a L1 ET > 11 GeV for L1_TAU11. The data has been collected in 14 runs at a centre-of-mass energy of 7 TeV in spring 2011.
tau_L1rates.png
[png] [eps]
EF output rate:
Event Filter (EF) output rates versus the instantaneous luminosity measured by ATLAS for four selected High Level Trigger (HLT) tau chains. The numbers in the item names correspond to ET requirements at EF for a given trigger type, e.g. a muon candidate with ET > 15 GeV in mu15 or missing transverse energy > 35 GeV in xe35. The data has been collected in 14 runs at a centre-of-mass energy of 7 TeV in spring 2011.
tau_HLTrates.png
[png] [eps]
Deleted:
<
<

Plots for PostLP 2011 ATL-COM-DAQ-2011-065

EF-offline comparision of average track distance for 1-prong taus:
Distribution of $p_{\mathrm{T}}$ weighted track width, $R_{\mathrm{track}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 1 associated track (1-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. Based on the limited information available, a looser selection is applied at EF level causing a slight shift on this distribution with respect to offline.
TrkAvgDist1P.png
[png] [eps]
 

2010 Data @ 7 TeV

Plots for PLHC 2011 ATL-COM-DAQ-2011-035

Line: 175 to 190
 
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Changed:
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<
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>
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META FILEATTACHMENT attachment="TrkAvgDist3P.png" attr="" comment="" date="1314377973" name="TrkAvgDist3P.png" path="TrkAvgDist3P.png" size="30931" stream="TrkAvgDist3P.png" tmpFilename="/usr/tmp/CGItemp14804" user="morgens" version="1"

Revision 102011-08-26 - MarcusMorgenstern

Line: 1 to 1
 
META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
Line: 21 to 21
 
L1 rate before prescale:
Level 1 (L1) rates before prescale versus the instantaneous luminosity measured by ATLAS for four different L1 tau items that are feeding primary High Level Trigger (HLT) tau chains. The last digits in the L1 item name correspond to the ET requirement, e.g. a L1 ET > 11 GeV for L1_TAU11. The data has been collected in 14 runs at a centre-of-mass energy of 7 TeV in spring 2011.
tau_L1rates.png
[png] [eps]
EF output rate:
Event Filter (EF) output rates versus the instantaneous luminosity measured by ATLAS for four selected High Level Trigger (HLT) tau chains. The numbers in the item names correspond to ET requirements at EF for a given trigger type, e.g. a muon candidate with ET > 15 GeV in mu15 or missing transverse energy > 35 GeV in xe35. The data has been collected in 14 runs at a centre-of-mass energy of 7 TeV in spring 2011.
tau_HLTrates.png
[png] [eps]
Added:
>
>

Plots for PostLP 2011 ATL-COM-DAQ-2011-065

EF-offline comparision of average track distance for 1-prong taus:
Distribution of $p_{\mathrm{T}}$ weighted track width, $R_{\mathrm{track}}$, for Event Filter (EF) and offline reconstructed tau candidates with exactly 1 associated track (1-prong). The hatched histogram represents the combined contributions from Ztautau -> tau tau, W -> tau nu and Z' -> tau tau signal Monte Carlo samples while the points represent the data. A dijet selection has been applied to select the events in data. Based on the limited information available, a looser selection is applied at EF level causing a slight shift on this distribution with respect to offline.
TrkAvgDist1P.png
[png] [eps]
 

2010 Data @ 7 TeV

Plots for PLHC 2011 ATL-COM-DAQ-2011-035

Line: 171 to 175
 
META FILEATTACHMENT attachment="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" attr="" comment="" date="1307518887" name="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" path="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" size="28917" stream="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" tmpFilename="/usr/tmp/CGItemp12782" user="casadop" version="1"
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META FILEATTACHMENT attachment="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png" attr="" comment="" date="1307518917" name="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png" path="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png" size="27199" stream="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png" tmpFilename="/usr/tmp/CGItemp12712" user="casadop" version="1"
Added:
>
>
META FILEATTACHMENT attachment="TrkAvgDist1P.png" attr="" comment="" date="1314366291" name="TrkAvgDist1P.png" path="TrkAvgDist1P.png" size="30508" stream="TrkAvgDist1P.png" tmpFilename="/usr/tmp/CGItemp20073" user="morgens" version="1"
META FILEATTACHMENT attachment="TrkAvgDist1P.eps" attr="" comment="" date="1314366318" name="TrkAvgDist1P.eps" path="TrkAvgDist1P.eps" size="19148" stream="TrkAvgDist1P.eps" tmpFilename="/usr/tmp/CGItemp20067" user="morgens" version="1"

Revision 92011-06-09 - MansooraShamim

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

2011 Data @ 7 TeV

Changed:
<
<

Plots for PLHC 2011

>
>

Plots for PLHC 2011 ATL-COM-DAQ-2011-035

 
tau16_loose efficiency with simulation:
Fraction of the offline tau candidates with tight cut-based identification passing L1, L2 and EF of the tau16_loose trigger as a function of the calibrated ET of the offline tau candidate. Distributions are produced from Monte-Carlo (MC) Z->tau tau events. The ET requirements are 7 GeV at L1, 12 GeV at L2 and 16 GeV at EF. Loose selection corresponds to softer cuts on shower shape variables at trigger level than used in offline.
tau16_loose_Ztautau_menutest_plotapproval.png
[png] [eps]
tau29_medium efficiency with simulation:
Fraction of the offline tau candidates with tight cut-based identification passing L1, L2 and EF of the tau29_medium single trigger as a function of the calibrated ET of the offline tau candidate. Distributions are produced from Monte-Carlo (MC) ??tt events. The ET requirements are 11 GeV at L1, 23 GeV at L2 and 29 GeV at EF. Medium selection corresponds to moderate cuts on shower shape variables
tau29_medium_Ztautau_menutest_plotapproval.png
[png] [eps]
Line: 23 to 23
 

2010 Data @ 7 TeV

Changed:
<
<

Plots for PLHC 2011

>
>

Plots for PLHC 2011 ATL-COM-DAQ-2011-035

 
Efficiency of 16 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 16 GeV tau trigger, for di-jet events firing a 50 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Differences between data and signal due to wider shower profile of jets.
dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png
[png] [eps]
Efficiency of 50 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 50 GeV tau trigger, for di-jet events firing the 75 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Discrepancy between data and QCD di-jet MC attributed to imperfect modeling of EF variables in MC.
dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png
[png] [eps]

Revision 82011-06-09 - MPilarCasado

Line: 1 to 1
 
META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
Line: 25 to 25
 

Plots for PLHC 2011

Deleted:
<
<
tau12_loose efficiency for offline candidates with at least one track:
The fraction of tau candidate jets reconstructed offline with at least one track passing the tau12_loose trigger as a function of the tau candidate jet ET. The tau12_loose ET requirements are 6 GeV at L1, 9 GeV at L2 and 12 GeV at EF.
MarkPlot.png
[png] [eps]
 
Efficiency of 16 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 16 GeV tau trigger, for di-jet events firing a 50 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Differences between data and signal due to wider shower profile of jets.
dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png
[png] [eps]
Efficiency of 50 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 50 GeV tau trigger, for di-jet events firing the 75 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Discrepancy between data and QCD di-jet MC attributed to imperfect modeling of EF variables in MC.
dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png
[png] [eps]
Line: 150 to 149
 
META FILEATTACHMENT attachment="Rejection_HLT.png" attr="" comment="" date="1307443217" name="Rejection_HLT.png" path="Rejection_HLT.png" size="12531" stream="Rejection_HLT.png" tmpFilename="/usr/tmp/CGItemp13188" user="casadop" version="1"
META FILEATTACHMENT attachment="Rejection_L1.eps" attr="" comment="" date="1307443233" name="Rejection_L1.eps" path="Rejection_L1.eps" size="6303" stream="Rejection_L1.eps" tmpFilename="/usr/tmp/CGItemp13064" user="casadop" version="1"
META FILEATTACHMENT attachment="Rejection_L1.png" attr="" comment="" date="1307443249" name="Rejection_L1.png" path="Rejection_L1.png" size="8416" stream="Rejection_L1.png" tmpFilename="/usr/tmp/CGItemp13107" user="casadop" version="1"
Changed:
<
<
META FILEATTACHMENT attachment="tau16_loose_Ztautau_menutest_plotapproval.png" attr="" comment="" date="1307443265" name="tau16_loose_Ztautau_menutest_plotapproval.png" path="tau16_loose_Ztautau_menutest_plotapproval.png" size="17841" stream="tau16_loose_Ztautau_menutest_plotapproval.png" tmpFilename="/usr/tmp/CGItemp13152" user="casadop" version="1"
META FILEATTACHMENT attachment="tau29_medium_Ztautau_menutest_plotapproval.png" attr="" comment="" date="1307443281" name="tau29_medium_Ztautau_menutest_plotapproval.png" path="tau29_medium_Ztautau_menutest_plotapproval.png" size="18527" stream="tau29_medium_Ztautau_menutest_plotapproval.png" tmpFilename="/usr/tmp/CGItemp12995" user="casadop" version="1"
>
>
META FILEATTACHMENT attachment="tau16_loose_Ztautau_menutest_plotapproval.png" attr="" comment="" date="1307606904" name="tau16_loose_Ztautau_menutest_plotapproval.png" path="tau16_loose_Ztautau_menutest_plotapproval.png" size="17780" stream="tau16_loose_Ztautau_menutest_plotapproval.png" tmpFilename="/usr/tmp/CGItemp13197" user="casadop" version="2"
META FILEATTACHMENT attachment="tau29_medium_Ztautau_menutest_plotapproval.png" attr="" comment="" date="1307606935" name="tau29_medium_Ztautau_menutest_plotapproval.png" path="tau29_medium_Ztautau_menutest_plotapproval.png" size="18432" stream="tau29_medium_Ztautau_menutest_plotapproval.png" tmpFilename="/usr/tmp/CGItemp13061" user="casadop" version="2"
 
META FILEATTACHMENT attachment="tau_HLTrates.eps" attr="" comment="" date="1307443298" name="tau_HLTrates.eps" path="tau_HLTrates.eps" size="22861" stream="tau_HLTrates.eps" tmpFilename="/usr/tmp/CGItemp13250" user="casadop" version="1"
META FILEATTACHMENT attachment="tau_HLTrates.png" attr="" comment="" date="1307443312" name="tau_HLTrates.png" path="tau_HLTrates.png" size="16920" stream="tau_HLTrates.png" tmpFilename="/usr/tmp/CGItemp13221" user="casadop" version="1"
META FILEATTACHMENT attachment="tau_L1rates.png" attr="" comment="" date="1307443348" name="tau_L1rates.png" path="tau_L1rates.png" size="18338" stream="tau_L1rates.png" tmpFilename="/usr/tmp/CGItemp13221" user="casadop" version="1"
Line: 166 to 165
 
META FILEATTACHMENT attachment="ZToTauTau_Oregon_eff16loo_mu.eps" attr="" comment="" date="1307443501" name="ZToTauTau_Oregon_eff16loo_mu.eps" path="ZToTauTau_Oregon_eff16loo_mu.eps" size="10748" stream="ZToTauTau_Oregon_eff16loo_mu.eps" tmpFilename="/usr/tmp/CGItemp13068" user="casadop" version="1"
META FILEATTACHMENT attachment="ZToTauTau_Oregon_eff16loo_mu.png" attr="" comment="" date="1307443517" name="ZToTauTau_Oregon_eff16loo_mu.png" path="ZToTauTau_Oregon_eff16loo_mu.png" size="16307" stream="ZToTauTau_Oregon_eff16loo_mu.png" tmpFilename="/usr/tmp/CGItemp13091" user="casadop" version="1"
META FILEATTACHMENT attachment="tau_L1rates.eps" attr="" comment="" date="1307452894" name="tau_L1rates.eps" path="tau_L1rates.eps" size="22727" stream="tau_L1rates.eps" tmpFilename="/usr/tmp/CGItemp18046" user="casadop" version="1"
Changed:
<
<
META FILEATTACHMENT attachment="tau29_medium_Ztautau_menutest_plotapproval.eps" attr="" comment="" date="1307452915" name="tau29_medium_Ztautau_menutest_plotapproval.eps" path="tau29_medium_Ztautau_menutest_plotapproval.eps" size="11801" stream="tau29_medium_Ztautau_menutest_plotapproval.eps" tmpFilename="/usr/tmp/CGItemp18100" user="casadop" version="1"
META FILEATTACHMENT attachment="tau16_loose_Ztautau_menutest_plotapproval.eps" attr="" comment="" date="1307452935" name="tau16_loose_Ztautau_menutest_plotapproval.eps" path="tau16_loose_Ztautau_menutest_plotapproval.eps" size="11620" stream="tau16_loose_Ztautau_menutest_plotapproval.eps" tmpFilename="/usr/tmp/CGItemp18051" user="casadop" version="1"
>
>
META FILEATTACHMENT attachment="tau29_medium_Ztautau_menutest_plotapproval.eps" attr="" comment="" date="1307606921" name="tau29_medium_Ztautau_menutest_plotapproval.eps" path="tau29_medium_Ztautau_menutest_plotapproval.eps" size="11888" stream="tau29_medium_Ztautau_menutest_plotapproval.eps" tmpFilename="/usr/tmp/CGItemp13135" user="casadop" version="2"
META FILEATTACHMENT attachment="tau16_loose_Ztautau_menutest_plotapproval.eps" attr="" comment="" date="1307606889" name="tau16_loose_Ztautau_menutest_plotapproval.eps" path="tau16_loose_Ztautau_menutest_plotapproval.eps" size="11707" stream="tau16_loose_Ztautau_menutest_plotapproval.eps" tmpFilename="/usr/tmp/CGItemp13089" user="casadop" version="2"
 
META FILEATTACHMENT attachment="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.eps" attr="" comment="" date="1307518870" name="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.eps" path="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.eps" size="16864" stream="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.eps" tmpFilename="/usr/tmp/CGItemp12749" user="casadop" version="1"
META FILEATTACHMENT attachment="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" attr="" comment="" date="1307518887" name="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" path="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" size="28917" stream="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" tmpFilename="/usr/tmp/CGItemp12782" user="casadop" version="1"
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Revision 72011-06-08 - MPilarCasado

Line: 1 to 1
 
META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
Line: 26 to 26
 

Plots for PLHC 2011

tau12_loose efficiency for offline candidates with at least one track:
The fraction of tau candidate jets reconstructed offline with at least one track passing the tau12_loose trigger as a function of the tau candidate jet ET. The tau12_loose ET requirements are 6 GeV at L1, 9 GeV at L2 and 12 GeV at EF.
MarkPlot.png
[png] [eps]
Changed:
<
<
Efficiency of 16 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 16 GeV tau trigger, for di-jet events firing a 50 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Differences between data and signal due to wider shower profile of jets.
MarkPlot.png
[png] [eps]
Efficiency of 50 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 50 GeV tau trigger, for di-jet events firing the 75 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Discrepancy between data and QCD di-jet MC attributed to imperfect modeling of EF variables in MC.
MarkPlot.png
[png] [eps]
>
>
Efficiency of 16 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 16 GeV tau trigger, for di-jet events firing a 50 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Differences between data and signal due to wider shower profile of jets.
dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png
[png] [eps]
Efficiency of 50 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 50 GeV tau trigger, for di-jet events firing the 75 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Discrepancy between data and QCD di-jet MC attributed to imperfect modeling of EF variables in MC.
dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png
[png] [eps]
 
tau12_loose efficiency from electron channel :
Fraction of tau candidates with tight cut-based identification passing tau12_loose for Z -> tau tau in the electron channel for data and MC. eT Data 2010 refers to the total efficiency for all selected events, while eS Data 2010 refers to the trigger estimated after background correction. eS MC refers to efficiency for all selected events in signal MC. Statistical errors only are shown.
ZToTauTau_Oregon_eff12loo_e.png
[png] [eps]
tau12_loose efficiency from muon channel :
Fraction of tau candidates with tight cut-based identification passing tau12_loose for Z -> tau tau in the muon channel for data and MC. eT Data 2010 refers to the total efficiency for all selected events, while eS Data 2010 refers to the trigger estimated after background correction. eS MC refers to efficiency for all selected events in signal MC. Statistical errors only are shown.
ZToTauTau_Oregon_eff12loo_mu.png
[png] [eps]
Line: 168 to 168
 
META FILEATTACHMENT attachment="tau_L1rates.eps" attr="" comment="" date="1307452894" name="tau_L1rates.eps" path="tau_L1rates.eps" size="22727" stream="tau_L1rates.eps" tmpFilename="/usr/tmp/CGItemp18046" user="casadop" version="1"
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Added:
>
>
META FILEATTACHMENT attachment="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.eps" attr="" comment="" date="1307518870" name="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.eps" path="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.eps" size="16864" stream="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.eps" tmpFilename="/usr/tmp/CGItemp12749" user="casadop" version="1"
META FILEATTACHMENT attachment="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" attr="" comment="" date="1307518887" name="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" path="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" size="28917" stream="dataGtoI_DiJet_tauCutTight_EF_j50_jetNoEF_EF_tau16_loose_tau_pt.png" tmpFilename="/usr/tmp/CGItemp12782" user="casadop" version="1"
META FILEATTACHMENT attachment="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.eps" attr="" comment="" date="1307518902" name="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.eps" path="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.eps" size="15139" stream="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.eps" tmpFilename="/usr/tmp/CGItemp12734" user="casadop" version="1"
META FILEATTACHMENT attachment="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png" attr="" comment="" date="1307518917" name="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png" path="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png" size="27199" stream="dataGtoI_DiJet_tauCutTight_EF_j75_jetNoEF_EF_tau50_loose_tau_pt.png" tmpFilename="/usr/tmp/CGItemp12712" user="casadop" version="1"

Revision 62011-06-07 - MansooraShamim

Line: 1 to 1
 
META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
Line: 39 to 39
  * http://cdsweb.cern.ch/record/1299105
Changed:
<
<
Tau Trigger ET at L1:
Comparison of the L1 tau candidate ET distribution for 7 TeV data and MB MC. The cut off at 6 GeV corresponds to the L1_TAU5 threshold. MC has been normalised to the number of entries of the data histogram.
Tau_L1Et_7TeV.png
[png] [eps]
Tau Trigger number of tracks at L2:
Comparison of the tau candidate number of tracks distribution at L2 for 7 TeV data and MB MC. MC has been normalised to the number of entries of the data histogram.
Tau_L2Ntrack_7TeV.png
[png] [eps]
Tau Trigger EM radius at EF:
Comparison of the tau candidate EM radius distribution at EF for 7 TeV data and MB MC. MC has been normalised to the number of entries of the data histogram. The shift of the peak has also been observed in the corresponding variable reconstructed offline and can be attributed to the insufficient tuning of MC to 7 TeV collision data. The systematic effects include the description of the hadronic shower, the underlying event and detector material.
Tau_EFEMradius_7TeV.png
[png] [eps]
Tau trigger L1 efficiency:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1Eff_7TeV.png
[png] [eps]
Tau trigger L1 efficiency (zoom to turn-on region):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1EffZoom_7TeV.png
[png] [eps]

* http://cdsweb.cern.ch/record/1287095

>
>

Tau Trigger plots for approval for Tau2010 ATL-COM-DAQ-2010-130

 
L1 Tau11 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 11 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau11TurnOn.png
[eps] [pdf]
L1 Tau20 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 20 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau20TurnOn.png
[eps] [pdf]
Line: 55 to 49
 
Tau single triggers, rate run 161118:
Dynamical prescaling during a run allows to optimize efficiency of physics sample collection. Examples from a few single tau triggers. The naming of the trigger indicates the ET threshold applied at Event Filter , the third and last trigger level.
rate_singletau_161118.png
[png] [pdf]
Tau cosmic triggers, rate run 161118:
Tau trigger chains monitoring non collisions contributions to the rate. L1 tau trigger with ET> 5 GeV in coincidence with isolated unpaired bunch (tauNoCut_unpaired) or first empty bunch (tauNoCut_firstempty) or all empty bunches (tauNoCut_cosmic). HLT is in monitoring mode (no rejection). Cosmic item is very usefull to spot also hot regions in detector.
rate_cosmic_161118.png
[png] [pdf]
Changed:
<
<
* http://cdsweb.cern.ch/record/1263615
>
>

7 TeV plots for approval from tau trigger group ATL-COM-DAQ-2010-042

 
L1 tau trigger turn-on curve (before and after L1 calo timing correction):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_A.png
[png] [eps]
L1 tau trigger turn-on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_B.png
[png] [eps]
Line: 63 to 57
 
Cumulative L1 tau trigger rate vs. ET threshold (up to 50 GeV incl. errors):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue boxes) and 7 TeV (red triangles) data.
L1TauRateThresh7TeVErrors.png
[png] [eps]
Changed:
<
<

2010 Data @ 900 GeV

>
>

2009 Data @ 900 GeV

 

Performance of the ATLAS tau trigger in p-p collisions at √s = 900 GeV ATLAS-CONF-2010-021

* http://cdsweb.cern.ch/record/1277653

Changed:
<
<
Figure 1:
Comparison of the L1 tau candidate ET distribution for 900 GeV data and MB MC. The cut off at 6 GeV corresponds to the L1_TAU5 threshold.
fig_01.png
[png] [eps]
Figure 2:
Comparison of the L1 tau candidate EM isolation distribution for 900 GeV data and MB MC.
fig_02.png
[png] [eps]
Figure 3:
Comparison of the tau candidate ET distribution at L2 for 900 GeV data and MB MC.
fig_03.png
[png] [eps]
Figure 4:
Comparison of the tau candidate EM fraction distribution at L2 for 900 GeV data and MB MC. The values below zero and above one appear because the EM and HAD energies can be negative due to noise fluctuations.
fig_04.png
[png] [eps]
Figure 5:
Comparison of the tau candidate number of tracks distribution at L2 for 900 GeV data and MB MC.
fig_05.png
[png] [eps]
Figure 6:
Comparison of the tau candidate ET distribution at EF for 900 GeV data and MB MC.
fig_06.png
[png] [eps]
Figure 7:
Comparison of the tau candidate EM radius distribution at EF for 900 GeV data and MB MC.
fig_07.png
[png] [eps]
Figure 8:
Distribution for the tau candidate HAD radius at EF for 900 GeV data and MB MC.
fig_08.png
[png] [eps]
Figure 9:
Distribution for number of tracks associated to the tau candidate at EF for 900 GeV data and MB MC. The difference between the number of tracks distribution at L2 (Fig.~5) and that at EF (Fig.~9) is due to the difference in the requirement for the minimum $p_T$ of the track. At L2 the minimum $p_T$ requirement is 1.5GeV, while at the EF it is 1GeV.
fig_09.png
[png] [eps]
Figure 10:
Fraction of the offline tau candidates matched to a L1 trigger object with ET>5 GeV as a function of the ET of the offline tau candidate. The dashed (solid) line represents fit to the data (MC) points.
fig_10.png
[png] [eps]
Figure 11:
Relative difference between EF and reconstructed transverse energy, when offline energy is calculated using DSPs (dashed line) and digital signals from samples of cells (solid line).
fig_11.png
[png] [eps]
Figure 12:
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value.
fig_12.png
[png] [eps]
Figure 13:
ET of the calorimeter cluster found at L2. The solid histogram represents a run with cosmic ray and collisions events while the dashed filled histogram represents a cosmic ray run only. The data used in this plot have no data quality requirements or offline selection criteria applied.
fig_13.png
[png] [eps]
Figure 14:
Number of tracks associated with a cluster at L2. The solid histogram represents a run with cosmic ray and collisions events while the dashed filled histogram represents a cosmic ray run only. The data used in this plot have no data quality requirements or offline selection criteria applied.
fig_14.png
[png] [eps]
>
>
 

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

Revision 52011-06-07 - MPilarCasado

Line: 1 to 1
 
META TOPICPARENT name="AtlasResults"
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.
Added:
>
>

2011 Data @ 7 TeV

Plots for PLHC 2011

tau16_loose efficiency with simulation:
Fraction of the offline tau candidates with tight cut-based identification passing L1, L2 and EF of the tau16_loose trigger as a function of the calibrated ET of the offline tau candidate. Distributions are produced from Monte-Carlo (MC) Z->tau tau events. The ET requirements are 7 GeV at L1, 12 GeV at L2 and 16 GeV at EF. Loose selection corresponds to softer cuts on shower shape variables at trigger level than used in offline.
tau16_loose_Ztautau_menutest_plotapproval.png
[png] [eps]
tau29_medium efficiency with simulation:
Fraction of the offline tau candidates with tight cut-based identification passing L1, L2 and EF of the tau29_medium single trigger as a function of the calibrated ET of the offline tau candidate. Distributions are produced from Monte-Carlo (MC) ??tt events. The ET requirements are 11 GeV at L1, 23 GeV at L2 and 29 GeV at EF. Medium selection corresponds to moderate cuts on shower shape variables
tau29_medium_Ztautau_menutest_plotapproval.png
[png] [eps]
Background rejection with respect to L1:
QCD jet rejection factors of different High Level Trigger (HLT) tau chains determined from collision data taken in 2011. The numbers given are with respect to the output of the associated Level 1 (L1) tau trigger item. The red and black bars show the rejection after Level 2 and EF, respectively.
Rejection_HLT.png
[png] [eps]
L1 rate before prescale:
Level 1 (L1) rates before prescale versus the instantaneous luminosity measured by ATLAS for four different L1 tau items that are feeding primary High Level Trigger (HLT) tau chains. The last digits in the L1 item name correspond to the ET requirement, e.g. a L1 ET > 11 GeV for L1_TAU11. The data has been collected in 14 runs at a centre-of-mass energy of 7 TeV in spring 2011.
tau_L1rates.png
[png] [eps]
EF output rate:
Event Filter (EF) output rates versus the instantaneous luminosity measured by ATLAS for four selected High Level Trigger (HLT) tau chains. The numbers in the item names correspond to ET requirements at EF for a given trigger type, e.g. a muon candidate with ET > 15 GeV in mu15 or missing transverse energy > 35 GeV in xe35. The data has been collected in 14 runs at a centre-of-mass energy of 7 TeV in spring 2011.
tau_HLTrates.png
[png] [eps]
 

2010 Data @ 7 TeV

Added:
>
>

Plots for PLHC 2011

tau12_loose efficiency for offline candidates with at least one track:
The fraction of tau candidate jets reconstructed offline with at least one track passing the tau12_loose trigger as a function of the tau candidate jet ET. The tau12_loose ET requirements are 6 GeV at L1, 9 GeV at L2 and 12 GeV at EF.
MarkPlot.png
[png] [eps]
Efficiency of 16 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 16 GeV tau trigger, for di-jet events firing a 50 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Differences between data and signal due to wider shower profile of jets.
MarkPlot.png
[png] [eps]
Efficiency of 50 GeV tau trigger using tight cut-based offline candidates:
Fraction of offline tau candidates with tight cut-based identification passing the 50 GeV tau trigger, for di-jet events firing the 75 GeV jet trigger in data and QCD di-jet MC, and signal taus from H(120GeV) -> tau tau . Discrepancy between data and QCD di-jet MC attributed to imperfect modeling of EF variables in MC.
MarkPlot.png
[png] [eps]

tau12_loose efficiency from electron channel :
Fraction of tau candidates with tight cut-based identification passing tau12_loose for Z -> tau tau in the electron channel for data and MC. eT Data 2010 refers to the total efficiency for all selected events, while eS Data 2010 refers to the trigger estimated after background correction. eS MC refers to efficiency for all selected events in signal MC. Statistical errors only are shown.
ZToTauTau_Oregon_eff12loo_e.png
[png] [eps]
tau12_loose efficiency from muon channel :
Fraction of tau candidates with tight cut-based identification passing tau12_loose for Z -> tau tau in the muon channel for data and MC. eT Data 2010 refers to the total efficiency for all selected events, while eS Data 2010 refers to the trigger estimated after background correction. eS MC refers to efficiency for all selected events in signal MC. Statistical errors only are shown.
ZToTauTau_Oregon_eff12loo_mu.png
[png] [eps]
tau16_loose efficiency from electron channel:
Fraction of tau candidates with tight cut-based identification passing tau16_loose for Z -> tau tau in the electron channel for data and MC. eT Data 2010 refers to the total efficiency for all selected events, while eS Data 2010 refers to the trigger estimated after background correction. eS MC refers to efficiency for all selected events in signal MC. Statistical errors only are shown.
ZToTauTau_Oregon_eff16loo_e.png
[png] [eps]
tau16_loose efficiency from muon channel:
Fraction of tau candidates with tight cut-based identification passing tau16_loose for Z -> tau tau in the muon channel for data and MC. eT Data 2010 refers to the total efficiency for all selected events, while eS Data 2010 refers to the trigger estimated after background correction. eS MC refers to efficiency for all selected events in signal MC. Statistical errors only are shown.
ZToTauTau_Oregon_eff16loo_mu.png
[png] [eps]
Efficiency plot combining electron and muon channel :
Tau trigger efficiency from combined electron and muon channels for Z -> tau tau events in data after background correction, for EF_tau12_loose and tau16_loose, versus offline tau candidate pT. Statistical errors only are shown.
ZToTauTau_Oregon_eff.png
[png] [eps]
 

Performance of the ATLAS tau trigger in p-p collisions at √s = 7 TeV ATLAS-CONF-2010-090

* http://cdsweb.cern.ch/record/1299105

Line: 23 to 45
 
Tau trigger L1 efficiency:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1Eff_7TeV.png
[png] [eps]
Tau trigger L1 efficiency (zoom to turn-on region):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1EffZoom_7TeV.png
[png] [eps]
Deleted:
<
<
* http://cdsweb.cern.ch/record/1263615

L1 tau trigger turn-on curve (before and after L1 calo timing correction):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_A.png
[png] [eps]
L1 tau trigger turn-on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_B.png
[png] [eps]
Cumulative L1 tau trigger rate vs. ET threshold (full range):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue dotted line) and 7 TeV (red dashed line) data.
L1TauRateThresh7TeV.png
[png] [eps]
Cumulative L1 tau trigger rate vs. ET threshold (up to 50 GeV incl. errors):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue boxes) and 7 TeV (red triangles) data.
L1TauRateThresh7TeVErrors.png
[png] [eps]
  * http://cdsweb.cern.ch/record/1287095

L1 Tau11 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 11 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau11TurnOn.png
[eps] [pdf]
Line: 40 to 55
 
Tau single triggers, rate run 161118:
Dynamical prescaling during a run allows to optimize efficiency of physics sample collection. Examples from a few single tau triggers. The naming of the trigger indicates the ET threshold applied at Event Filter , the third and last trigger level.
rate_singletau_161118.png
[png] [pdf]
Tau cosmic triggers, rate run 161118:
Tau trigger chains monitoring non collisions contributions to the rate. L1 tau trigger with ET> 5 GeV in coincidence with isolated unpaired bunch (tauNoCut_unpaired) or first empty bunch (tauNoCut_firstempty) or all empty bunches (tauNoCut_cosmic). HLT is in monitoring mode (no rejection). Cosmic item is very usefull to spot also hot regions in detector.
rate_cosmic_161118.png
[png] [pdf]
Added:
>
>
* http://cdsweb.cern.ch/record/1263615

L1 tau trigger turn-on curve (before and after L1 calo timing correction):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_A.png
[png] [eps]
L1 tau trigger turn-on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_B.png
[png] [eps]
Cumulative L1 tau trigger rate vs. ET threshold (full range):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue dotted line) and 7 TeV (red dashed line) data.
L1TauRateThresh7TeV.png
[png] [eps]
Cumulative L1 tau trigger rate vs. ET threshold (up to 50 GeV incl. errors):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue boxes) and 7 TeV (red triangles) data.
L1TauRateThresh7TeVErrors.png
[png] [eps]
 

2010 Data @ 900 GeV

Performance of the ATLAS tau trigger in p-p collisions at √s = 900 GeV ATLAS-CONF-2010-021

Line: 161 to 184
 
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Revision 42011-06-07 - MPilarCasado

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META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
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>
>
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Revision 32011-06-07 - MPilarCasado

Line: 1 to 1
 
META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png
Line: 17 to 17
  * http://cdsweb.cern.ch/record/1299105
Changed:
<
<
L1 tau trigger turn-on curve (before and after L1 calo timing correction):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_A.png
[png] [eps]
L1 tau trigger turn-on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_B.png
[png] [eps]
Cumulative L1 tau trigger rate vs. E/ threshold (full range):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue dotted line) and 7 TeV (red dashed line) data.
L1TauRateThresh7TeV.png
[png] [eps]
Cumulative L1 tau trigger rate vs. E/ threshold (up to 50 GeV incl. errors):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue boxes) and 7 TeV (red triangles) data.
L1TauRateThresh7TeVErrors.png
[png] [eps]
Tau Trigger E/ at L1:
Comparison of the L1 tau candidate ET distribution for 7 TeV data and MB MC. The cut off at 6 GeV corresponds to the L1_TAU5 threshold. MC has been normalised to the number of entries of the data histogram.
Tau_L1Et_7TeV.png
[png] [eps]
>
>
Tau Trigger ET at L1:
Comparison of the L1 tau candidate ET distribution for 7 TeV data and MB MC. The cut off at 6 GeV corresponds to the L1_TAU5 threshold. MC has been normalised to the number of entries of the data histogram.
Tau_L1Et_7TeV.png
[png] [eps]
 
Tau Trigger number of tracks at L2:
Comparison of the tau candidate number of tracks distribution at L2 for 7 TeV data and MB MC. MC has been normalised to the number of entries of the data histogram.
Tau_L2Ntrack_7TeV.png
[png] [eps]
Tau Trigger EM radius at EF:
Comparison of the tau candidate EM radius distribution at EF for 7 TeV data and MB MC. MC has been normalised to the number of entries of the data histogram. The shift of the peak has also been observed in the corresponding variable reconstructed offline and can be attributed to the insufficient tuning of MC to 7 TeV collision data. The systematic effects include the description of the hadronic shower, the underlying event and detector material.
Tau_EFEMradius_7TeV.png
[png] [eps]
Tau trigger L1 efficiency:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1Eff_7TeV.png
[png] [eps]
Tau trigger L1 efficiency (zoom to turn-on region):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1EffZoom_7TeV.png
[png] [eps]
Added:
>
>
* http://cdsweb.cern.ch/record/1263615

L1 tau trigger turn-on curve (before and after L1 calo timing correction):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_A.png
[png] [eps]
L1 tau trigger turn-on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_B.png
[png] [eps]
Cumulative L1 tau trigger rate vs. ET threshold (full range):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue dotted line) and 7 TeV (red dashed line) data.
L1TauRateThresh7TeV.png
[png] [eps]
Cumulative L1 tau trigger rate vs. ET threshold (up to 50 GeV incl. errors):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue boxes) and 7 TeV (red triangles) data.
L1TauRateThresh7TeVErrors.png
[png] [eps]

* http://cdsweb.cern.ch/record/1287095

 
L1 Tau11 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 11 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau11TurnOn.png
[eps] [pdf]
L1 Tau20 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 20 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau20TurnOn.png
[eps] [pdf]
L1 and HLT efficiency tau12_loose :
Fraction of the offline tau candidates passing L1, L2 and EF tau12_loose single trigger as a function of the ET of the offline tau candidate. Distributions are done on Monte-Carlo (MC) W -> tau(had)nu events. Requirements for ET are 5 GeV at L1, 7 GeV at L2 and 12 GeV at EF.
turnonL1L2EF_wtau_12.png
[png] [pdf]
Line: 43 to 49
 
Figure 1:
Comparison of the L1 tau candidate ET distribution for 900 GeV data and MB MC. The cut off at 6 GeV corresponds to the L1_TAU5 threshold.
fig_01.png
[png] [eps]
Figure 2:
Comparison of the L1 tau candidate EM isolation distribution for 900 GeV data and MB MC.
fig_02.png
[png] [eps]
Changed:
<
<
Figure 3:
Comparison of the tau candidate E/ distribution at L2 for 900 GeV data and MB MC.
fig_03.png
[png] [eps]
>
>
Figure 3:
Comparison of the tau candidate ET distribution at L2 for 900 GeV data and MB MC.
fig_03.png
[png] [eps]
 
Figure 4:
Comparison of the tau candidate EM fraction distribution at L2 for 900 GeV data and MB MC. The values below zero and above one appear because the EM and HAD energies can be negative due to noise fluctuations.
fig_04.png
[png] [eps]
Figure 5:
Comparison of the tau candidate number of tracks distribution at L2 for 900 GeV data and MB MC.
fig_05.png
[png] [eps]
Changed:
<
<
Figure 6:
Comparison of the tau candidate E/ distribution at EF for 900 GeV data and MB MC.
fig_06.png
[png] [eps]
>
>
Figure 6:
Comparison of the tau candidate ET distribution at EF for 900 GeV data and MB MC.
fig_06.png
[png] [eps]
 
Figure 7:
Comparison of the tau candidate EM radius distribution at EF for 900 GeV data and MB MC.
fig_07.png
[png] [eps]
Figure 8:
Distribution for the tau candidate HAD radius at EF for 900 GeV data and MB MC.
fig_08.png
[png] [eps]
Figure 9:
Distribution for number of tracks associated to the tau candidate at EF for 900 GeV data and MB MC. The difference between the number of tracks distribution at L2 (Fig.~5) and that at EF (Fig.~9) is due to the difference in the requirement for the minimum $p_T$ of the track. At L2 the minimum $p_T$ requirement is 1.5GeV, while at the EF it is 1GeV.
fig_09.png
[png] [eps]
Changed:
<
<
Figure 10:
Fraction of the offline tau candidates matched to a L1 trigger object with ET>5 GeV as a function of the E/ of the offline tau candidate. The dashed (solid) line represents fit to the data (MC) points.
fig_10.png
[png] [eps]
>
>
Figure 10:
Fraction of the offline tau candidates matched to a L1 trigger object with ET>5 GeV as a function of the ET of the offline tau candidate. The dashed (solid) line represents fit to the data (MC) points.
fig_10.png
[png] [eps]
 
Figure 11:
Relative difference between EF and reconstructed transverse energy, when offline energy is calculated using DSPs (dashed line) and digital signals from samples of cells (solid line).
fig_11.png
[png] [eps]
Changed:
<
<
Figure 12:
Cumulative L1 tau trigger rate as a function of the L1 tau object E/ threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value.
fig_12.png
[png] [eps]
Figure 13:
E/ of the calorimeter cluster found at L2. The solid histogram represents a run with cosmic ray and collisions events while the dashed filled histogram represents a cosmic ray run only. The data used in this plot have no data quality requirements or offline selection criteria applied.
fig_13.png
[png] [eps]
>
>
Figure 12:
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value.
fig_12.png
[png] [eps]
Figure 13:
ET of the calorimeter cluster found at L2. The solid histogram represents a run with cosmic ray and collisions events while the dashed filled histogram represents a cosmic ray run only. The data used in this plot have no data quality requirements or offline selection criteria applied.
fig_13.png
[png] [eps]
 
Figure 14:
Number of tracks associated with a cluster at L2. The solid histogram represents a run with cosmic ray and collisions events while the dashed filled histogram represents a cosmic ray run only. The data used in this plot have no data quality requirements or offline selection criteria applied.
fig_14.png
[png] [eps]

Revision 22011-06-06 - MPilarCasado

Line: 1 to 1
 
META TOPICPARENT name="AtlasResults"
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.
Changed:
<
<

2010 Data @ 7 TeV

>
>

2010 Data @ 7 TeV

 

Performance of the ATLAS tau trigger in p-p collisions at √s = 7 TeV ATLAS-CONF-2010-090

* http://cdsweb.cern.ch/record/1299105

Changed:
<
<
L1 tau trigger turn-on curve (before and after L1 calo timing correction):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_A.png
[png] [eps]
L1 tau trigger turn-on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_B.png
[png] [eps]
Cumulative L1 tau trigger rate vs. E_T threshold (full range):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue dotted line) and 7 TeV (red dashed line) data.
L1TauRateThresh7TeV.png
[png] [eps]
Cumulative L1 tau trigger rate vs. E_T threshold (up to 50 GeV incl. errors):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue boxes) and 7 TeV (red triangles) data.
L1TauRateThresh7TeVErrors.png
[png] [eps]
Tau Trigger E_T at L1:
Comparison of the L1 tau candidate ET distribution for 7 TeV data and MB MC. The cut off at 6 GeV corresponds to the L1_TAU5 threshold. MC has been normalised to the number of entries of the data histogram.
Tau_L1Et_7TeV.png
[png] [eps]
Tau Trigger number of tracks at L2:
Comparison of the tau candidate number of tracks distribution at L2 for 7 TeV data and MB MC. MC has been normalised to the number of entries of the data histogram.
Tau_L2Ntrack_7TeV.png
[png] [eps]
Tau Trigger EM radius at EF:
Comparison of the tau candidate EM radius distribution at EF for 7 TeV data and MB MC. MC has been normalised to the number of entries of the data histogram. The shift of the peak has also been observed in the corresponding variable reconstructed offline and can be attributed to the insufficient tuning of MC to 7 TeV collision data. The systematic effects include the description of the hadronic shower, the underlying event and detector material.
Tau_EFEMradius_7TeV.png
[png] [eps]
Tau trigger L1 efficiency:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1Eff_7TeV.png
[png] [eps]
Tau trigger L1 efficiency (zoom to turn-on region):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1EffZoom_7TeV.png
[png] [eps]
L1 Tau11 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 11 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau11TurnOn.png
[eps] [pdf]
L1 Tau20 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 20 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau20TurnOn.png
[eps] [pdf]
L1 and HLT efficiency tau12_loose :
Fraction of the offline tau candidates passing L1, L2 and EF tau12_loose single trigger as a function of the ET of the offline tau candidate. Distributions are done on Monte-Carlo (MC) W -> tau(had)nu events. Requirements for ET are 5 GeV at L1, 7 GeV at L2 and 12 GeV at EF.
turnonL1L2EF_wtau_12.png
[png] [pdf]
L1 and HLT rejection tau12_loose :
Fraction of the background offline tau candidates passing L1, L2 and EF tau12_loose trigger as a function of the ET of the offline tau candidate. Requirements for ET are 5 GeV at L1, 7 GeV at L2 and 12 GeV at EF. Distributions are done on Monte-Carlo (MC) Minimum Bias simulated with PYTHIA and on data from Minimum Bias stream. Without any tuning for underlying event, the PYTHIA simulation reproduces remarkably well the observed background rejection performance in the data. Tuned PYTHIA simulations are expected to show better agreement with data results, as observed in recent tau identification offline studies.
turnonL1L2EF_minbias_12.png
[png] [pdf]
Tau +missing ET triggers, rate run 161118:
Primary tau trigger items for physics analyses requiring final states with tau leptons decaying hadronically and large missing transverse energy. Triggers for 1030 – 1032 cm-2 s-1 are illustrated. At 1030 cm-2 s-1 , a simpler requirement of L1 tau ET > 5 GeV with at least one track with pT > 6 GeV at L2 and missing ET > 15 at EF can be afforded (tauNoCut_hasTrk6_EFxe15_noMu). For higher luminosities, at L2 and EF trigger levels a more sophisticated tau identification and missing ET thresholds at all trigger levels must be required (tau12_loose_xe15_noMu and tau12_loose_xe20_noMu). The suffix _noMu indicates that no muon corrections are applied on the missing ET measurement.
rate_taumet_161118.png
[png] [pdf]
>
>
L1 tau trigger turn-on curve (before and after L1 calo timing correction):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_A.png
[png] [eps]
L1 tau trigger turn-on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_B.png
[png] [eps]
Cumulative L1 tau trigger rate vs. E/ threshold (full range):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue dotted line) and 7 TeV (red dashed line) data.
L1TauRateThresh7TeV.png
[png] [eps]
Cumulative L1 tau trigger rate vs. E/ threshold (up to 50 GeV incl. errors):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue boxes) and 7 TeV (red triangles) data.
L1TauRateThresh7TeVErrors.png
[png] [eps]
Tau Trigger E/ at L1:
Comparison of the L1 tau candidate ET distribution for 7 TeV data and MB MC. The cut off at 6 GeV corresponds to the L1_TAU5 threshold. MC has been normalised to the number of entries of the data histogram.
Tau_L1Et_7TeV.png
[png] [eps]
Tau Trigger number of tracks at L2:
Comparison of the tau candidate number of tracks distribution at L2 for 7 TeV data and MB MC. MC has been normalised to the number of entries of the data histogram.
Tau_L2Ntrack_7TeV.png
[png] [eps]
Tau Trigger EM radius at EF:
Comparison of the tau candidate EM radius distribution at EF for 7 TeV data and MB MC. MC has been normalised to the number of entries of the data histogram. The shift of the peak has also been observed in the corresponding variable reconstructed offline and can be attributed to the insufficient tuning of MC to 7 TeV collision data. The systematic effects include the description of the hadronic shower, the underlying event and detector material.
Tau_EFEMradius_7TeV.png
[png] [eps]
Tau trigger L1 efficiency:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1Eff_7TeV.png
[png] [eps]
Tau trigger L1 efficiency (zoom to turn-on region):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1EffZoom_7TeV.png
[png] [eps]
L1 Tau11 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 11 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau11TurnOn.png
[eps] [pdf]
L1 Tau20 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 20 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau20TurnOn.png
[eps] [pdf]
L1 and HLT efficiency tau12_loose :
Fraction of the offline tau candidates passing L1, L2 and EF tau12_loose single trigger as a function of the ET of the offline tau candidate. Distributions are done on Monte-Carlo (MC) W -> tau(had)nu events. Requirements for ET are 5 GeV at L1, 7 GeV at L2 and 12 GeV at EF.
turnonL1L2EF_wtau_12.png
[png] [pdf]
L1 and HLT rejection tau12_loose :
Fraction of the background offline tau candidates passing L1, L2 and EF tau12_loose trigger as a function of the ET of the offline tau candidate. Requirements for ET are 5 GeV at L1, 7 GeV at L2 and 12 GeV at EF. Distributions are done on Monte-Carlo (MC) Minimum Bias simulated with PYTHIA and on data from Minimum Bias stream. Without any tuning for underlying event, the PYTHIA simulation reproduces remarkably well the observed background rejection performance in the data. Tuned PYTHIA simulations are expected to show better agreement with data results, as observed in recent tau identification offline studies.
turnonL1L2EF_minbias_12.png
[png] [pdf]
Tau +missing ET triggers, rate run 161118:
Primary tau trigger items for physics analyses requiring final states with tau leptons decaying hadronically and large missing transverse energy. Triggers for 1030 – 1032 cm-2 s-1 are illustrated. At 1030 cm-2 s-1 , a simpler requirement of L1 tau ET > 5 GeV with at least one track with pT > 6 GeV at L2 and missing ET > 15 at EF can be afforded (tauNoCut_hasTrk6_EFxe15_noMu). For higher luminosities, at L2 and EF trigger levels a more sophisticated tau identification and missing ET thresholds at all trigger levels must be required (tau12_loose_xe15_noMu and tau12_loose_xe20_noMu). The suffix _noMu indicates that no muon corrections are applied on the missing ET measurement.
rate_taumet_161118.png
[png] [pdf]
 
Tau single triggers, rate run 161118:
Dynamical prescaling during a run allows to optimize efficiency of physics sample collection. Examples from a few single tau triggers. The naming of the trigger indicates the ET threshold applied at Event Filter , the third and last trigger level.
rate_singletau_161118.png
[png] [pdf]
Tau cosmic triggers, rate run 161118:
Tau trigger chains monitoring non collisions contributions to the rate. L1 tau trigger with ET> 5 GeV in coincidence with isolated unpaired bunch (tauNoCut_unpaired) or first empty bunch (tauNoCut_firstempty) or all empty bunches (tauNoCut_cosmic). HLT is in monitoring mode (no rejection). Cosmic item is very usefull to spot also hot regions in detector.
rate_cosmic_161118.png
[png] [pdf]
Added:
>
>

2010 Data @ 900 GeV

Performance of the ATLAS tau trigger in p-p collisions at √s = 900 GeV ATLAS-CONF-2010-021

* http://cdsweb.cern.ch/record/1277653

Figure 1:
Comparison of the L1 tau candidate ET distribution for 900 GeV data and MB MC. The cut off at 6 GeV corresponds to the L1_TAU5 threshold.
fig_01.png
[png] [eps]
Figure 2:
Comparison of the L1 tau candidate EM isolation distribution for 900 GeV data and MB MC.
fig_02.png
[png] [eps]
Figure 3:
Comparison of the tau candidate E/ distribution at L2 for 900 GeV data and MB MC.
fig_03.png
[png] [eps]
Figure 4:
Comparison of the tau candidate EM fraction distribution at L2 for 900 GeV data and MB MC. The values below zero and above one appear because the EM and HAD energies can be negative due to noise fluctuations.
fig_04.png
[png] [eps]
Figure 5:
Comparison of the tau candidate number of tracks distribution at L2 for 900 GeV data and MB MC.
fig_05.png
[png] [eps]
Figure 6:
Comparison of the tau candidate E/ distribution at EF for 900 GeV data and MB MC.
fig_06.png
[png] [eps]
Figure 7:
Comparison of the tau candidate EM radius distribution at EF for 900 GeV data and MB MC.
fig_07.png
[png] [eps]
Figure 8:
Distribution for the tau candidate HAD radius at EF for 900 GeV data and MB MC.
fig_08.png
[png] [eps]
Figure 9:
Distribution for number of tracks associated to the tau candidate at EF for 900 GeV data and MB MC. The difference between the number of tracks distribution at L2 (Fig.~5) and that at EF (Fig.~9) is due to the difference in the requirement for the minimum $p_T$ of the track. At L2 the minimum $p_T$ requirement is 1.5GeV, while at the EF it is 1GeV.
fig_09.png
[png] [eps]
Figure 10:
Fraction of the offline tau candidates matched to a L1 trigger object with ET>5 GeV as a function of the E/ of the offline tau candidate. The dashed (solid) line represents fit to the data (MC) points.
fig_10.png
[png] [eps]
Figure 11:
Relative difference between EF and reconstructed transverse energy, when offline energy is calculated using DSPs (dashed line) and digital signals from samples of cells (solid line).
fig_11.png
[png] [eps]
Figure 12:
Cumulative L1 tau trigger rate as a function of the L1 tau object E/ threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value.
fig_12.png
[png] [eps]
Figure 13:
E/ of the calorimeter cluster found at L2. The solid histogram represents a run with cosmic ray and collisions events while the dashed filled histogram represents a cosmic ray run only. The data used in this plot have no data quality requirements or offline selection criteria applied.
fig_13.png
[png] [eps]
Figure 14:
Number of tracks associated with a cluster at L2. The solid histogram represents a run with cosmic ray and collisions events while the dashed filled histogram represents a cosmic ray run only. The data used in this plot have no data quality requirements or offline selection criteria applied.
fig_14.png
[png] [eps]
 
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Revision 12011-06-06 - MPilarCasado

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META TOPICPARENT name="AtlasResults"
AtlasPublicTopicHeader.png

Public Tau Trigger Plots for Collision Data

<!--optional-->

Introduction

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.

2010 Data @ 7 TeV

Performance of the ATLAS tau trigger in p-p collisions at √s = 7 TeV ATLAS-CONF-2010-090

* http://cdsweb.cern.ch/record/1299105

L1 tau trigger turn-on curve (before and after L1 calo timing correction):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_A.png
[png] [eps]
L1 tau trigger turn-on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate.
L1TauTurnOn7TeV_B.png
[png] [eps]
Cumulative L1 tau trigger rate vs. E_T threshold (full range):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue dotted line) and 7 TeV (red dashed line) data.
L1TauRateThresh7TeV.png
[png] [eps]
Cumulative L1 tau trigger rate vs. E_T threshold (up to 50 GeV incl. errors):
Cumulative L1 tau trigger rate as a function of the L1 tau object ET threshold, normalized to one colliding bunch pair. For a given threshold value, the objects considered have a transverse energy greater than this value. Only events passing the 10 ns requirement on the time difference measured by the two sides of the minimum bias scintillator triggers are shown for 900 GeV (blue boxes) and 7 TeV (red triangles) data.
L1TauRateThresh7TeVErrors.png
[png] [eps]
Tau Trigger E_T at L1:
Comparison of the L1 tau candidate ET distribution for 7 TeV data and MB MC. The cut off at 6 GeV corresponds to the L1_TAU5 threshold. MC has been normalised to the number of entries of the data histogram.
Tau_L1Et_7TeV.png
[png] [eps]
Tau Trigger number of tracks at L2:
Comparison of the tau candidate number of tracks distribution at L2 for 7 TeV data and MB MC. MC has been normalised to the number of entries of the data histogram.
Tau_L2Ntrack_7TeV.png
[png] [eps]
Tau Trigger EM radius at EF:
Comparison of the tau candidate EM radius distribution at EF for 7 TeV data and MB MC. MC has been normalised to the number of entries of the data histogram. The shift of the peak has also been observed in the corresponding variable reconstructed offline and can be attributed to the insufficient tuning of MC to 7 TeV collision data. The systematic effects include the description of the hadronic shower, the underlying event and detector material.
Tau_EFEMradius_7TeV.png
[png] [eps]
Tau trigger L1 efficiency:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1Eff_7TeV.png
[png] [eps]
Tau trigger L1 efficiency (zoom to turn-on region):
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 5 GeV as a function of the ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
Tau_L1EffZoom_7TeV.png
[png] [eps]
L1 Tau11 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 11 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau11TurnOn.png
[eps] [pdf]
L1 Tau20 turn on curve:
Fraction of the offline tau candidates matched to a L1 trigger object with ET > 20 GeV as a function of the uncalibrated ET of the offline tau candidate. The small differences at low ET can be attributed to inefficiencies in the forward region of the detector.
L1Tau20TurnOn.png
[eps] [pdf]
L1 and HLT efficiency tau12_loose :
Fraction of the offline tau candidates passing L1, L2 and EF tau12_loose single trigger as a function of the ET of the offline tau candidate. Distributions are done on Monte-Carlo (MC) W -> tau(had)nu events. Requirements for ET are 5 GeV at L1, 7 GeV at L2 and 12 GeV at EF.
turnonL1L2EF_wtau_12.png
[png] [pdf]
L1 and HLT rejection tau12_loose :
Fraction of the background offline tau candidates passing L1, L2 and EF tau12_loose trigger as a function of the ET of the offline tau candidate. Requirements for ET are 5 GeV at L1, 7 GeV at L2 and 12 GeV at EF. Distributions are done on Monte-Carlo (MC) Minimum Bias simulated with PYTHIA and on data from Minimum Bias stream. Without any tuning for underlying event, the PYTHIA simulation reproduces remarkably well the observed background rejection performance in the data. Tuned PYTHIA simulations are expected to show better agreement with data results, as observed in recent tau identification offline studies.
turnonL1L2EF_minbias_12.png
[png] [pdf]
Tau +missing ET triggers, rate run 161118:
Primary tau trigger items for physics analyses requiring final states with tau leptons decaying hadronically and large missing transverse energy. Triggers for 1030 – 1032 cm-2 s-1 are illustrated. At 1030 cm-2 s-1 , a simpler requirement of L1 tau ET > 5 GeV with at least one track with pT > 6 GeV at L2 and missing ET > 15 at EF can be afforded (tauNoCut_hasTrk6_EFxe15_noMu). For higher luminosities, at L2 and EF trigger levels a more sophisticated tau identification and missing ET thresholds at all trigger levels must be required (tau12_loose_xe15_noMu and tau12_loose_xe20_noMu). The suffix _noMu indicates that no muon corrections are applied on the missing ET measurement.
rate_taumet_161118.png
[png] [pdf]
Tau single triggers, rate run 161118:
Dynamical prescaling during a run allows to optimize efficiency of physics sample collection. Examples from a few single tau triggers. The naming of the trigger indicates the ET threshold applied at Event Filter , the third and last trigger level.
rate_singletau_161118.png
[png] [pdf]
Tau cosmic triggers, rate run 161118:
Tau trigger chains monitoring non collisions contributions to the rate. L1 tau trigger with ET> 5 GeV in coincidence with isolated unpaired bunch (tauNoCut_unpaired) or first empty bunch (tauNoCut_firstempty) or all empty bunches (tauNoCut_cosmic). HLT is in monitoring mode (no rejection). Cosmic item is very usefull to spot also hot regions in detector.
rate_cosmic_161118.png
[png] [pdf]

<!--***********************************************************-->
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<!--For significant updates to the topic, consider adding your 'signature' (beneath this editing box)-->
Major updates:
-- MPilarCasado - 06-Jun-2011

<!--Person responsible for the page: 
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