MUON HLT performance with 2018 data ( CMS DP-2018/034)
On 15th May 2018, the muon reconstruction at high level trigger (HLT) was updated:
More seeds for the muon track building are generated to improve the efficiency.
One more iterative tracking is added to the muon tracking algorithm to improve the efficiency.
A simple ID on HLT muons is applied to keep high purity with lower rate.
The trigger efficiencies are measured with the data collected in 2018 corresponding to an integrated luminosity of 11.8 fb-1
Before HLT muon update: 7.7 fb-1.
After HLT muon update: 4.1 fb-1.
Efficiencies are estimated using Tag and Probe (T&P) method using Z→𝛍𝛍 events
Tag is an offline muon with pT > 29 GeV and abs(𝝶) < 2.4 passing a tight identification criteria ensuring the high purity.
Probe definition is different for each trigger efficiency.
Tag & probe invariant mass should be within [70, 130] GeV mass range.
The background events are subtracted by the fit on dimuon invariant mass distribution with Double Voigtian (signal) and Exponential (background) functions.
Two kinds of the triggers will be presented
Isolated single muon trigger with pT > 24 GeV
Non-isolated single muon trigger with pT > 50 GeV
Isolated Single 𝛍 Trigger Efficiency The efficiency of combined L1 and high-level trigger requiring isolated single muon with pT > 24 GeV is shown as a function of muon pT. The efficiency is estimated with respect to the offline muon passing tight identification and particle-flow based isolation requirements. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Isolated Single 𝛍 Trigger Efficiency The efficiency of combined L1 and high-level trigger requiring isolated single muon with pT > 24 GeV is shown as a function of muon 𝝶 . The efficiency is estimated with respect to the offline muon passing tight identification and particle-flow based isolation requirements with pT > 26 GeV. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. A small asymmetry is observed between the negative and positive endcaps. It is due to disabled muon chambers (CSC). The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Isolated Single 𝛍 Trigger Efficiency The efficiency of combined L1 and high-level trigger requiring isolated single muon with pT > 24 GeV is shown as a function of muon 𝝓. The efficiency is estimated with respect to the offline muon passing tight identification and particle-flow based isolation requirements with pT > 26 GeV. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Isolated Single 𝛍 Trigger Efficiency The efficiency of combined L1 and high-level trigger requiring isolated single muon with pT > 24 GeV is shown as a function of the number of reconstructed vertices. The efficiency is estimated with respect to the offline muon passing tight identification and particle-flow based isolation requirements with pT > 26 GeV. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Isolated Single 𝛍 Trigger Efficiency The efficiency of high-level trigger requiring isolated single muon with pT > 24 GeV is shown as a function of muon pT. The efficiency is estimated with respect to the offline muon matched to L1 trigger object with ΔR < 0.3 as well as passing ight identification and particle-flow based isolation requirements. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Isolated Single 𝛍 Trigger Efficiency The efficiency of high-level trigger requiring isolated single muon with pT > 24 GeV is shown as a function of muon 𝝶. The efficiency is estimated with respect to the offline muon matched to L1 trigger object with ΔR < 0.3 as well as passing tight identification and particle-flow based isolation requirements with pT > 26 GeV. The data are split with respect tothe HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Isolated Single 𝛍 Trigger Efficiency The efficiency of high-level trigger requiring isolated single muon with pT > 24 GeV is shown as a function of muon 𝝓. The efficiency is estimated with respect to the offline muon matched to L1 trigger object with ΔR < 0.3 as well as passing tight identification and particle-flow based isolation requirements with pT > 26 GeV. The data are split with respect tothe HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Isolated Single 𝛍 Trigger Efficiency The efficiency of high-level trigger requiring isolated single muon with pT > 24 GeV is shown as a function of the number of reconstructed vertices. The efficiency is estimated with respect to the offline muon matched to L1 trigger object with ΔR < 0.3 as well as passing tight identification and particle-flow based isolation requirements with pT > 26 GeV. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Non-Isolated Single 𝛍 Trigger Efficiency The efficiency of combined L1 and high-level trigger requiring single muon with pT > 50 GeV is shown as a function of muon pT. The efficiency is estimated with respect to the offline muon passing identification optimized for high-pT muons and track based isolation requirements. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Non-Isolated Single 𝛍 Trigger Efficiency The efficiency of combined L1 and high-level trigger requiring single muon with pT > 50 GeV is shown as a function of muon 𝝶. The efficiency is estimated with respect to the offline muon passing identification optimized for high-pT muons and track based isolation requirements with pT > 52 GeV. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. A small asymmetry is observed between the negative and positive endcaps. It is due to disabled muon chambers (CSC). The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Non-Isolated Single 𝛍 Trigger Efficiency The efficiency of combined L1 and high-level trigger requiring single muon with pT > 50 GeV is shown as a function of muon 𝝓 . The efficiency is estimated with respect to the offline muon passing identification optimized for high-pT muons and track based isolation requirements with pT > 52 GeV. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Non-Isolated Single 𝛍 Trigger Efficiency The efficiency of combined L1 and high-level trigger requiring single muon with pT > 50 GeV is shown as a function of the number of reconstructed vertices. The efficiency is estimated with respect to the offline muon passing identification optimized for high-pT muons and track based isolation requirements with pT > 52 GeV. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Non-Isolated Single 𝛍 Trigger Efficiency The efficiency of high-level trigger requiring single muon with pT > 50 GeV is shown as a function of muon pT. The efficiency is estimated with respect to the offline muon matched to L1 trigger object with ΔR < 0.3 as well as passing identification optimized for high-pT muons and track based isolation requirements. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Non-Isolated Single 𝛍 Trigger Efficiency The efficiency of high-level trigger requiring single muon with pT > 50 GeV is shown as a function of muon 𝝶. The efficiency is estimated with respect to the offline muon matched to L1 trigger object with ΔR < 0.3 as well as passing identification optimized for high-pT muons and track based isolation requirements with pT > 52 GeV. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Non-Isolated Single 𝛍 Trigger Efficiency The efficiency of high-level trigger requiring single muon with pT > 50 GeV is shown as a function of muon 𝝓. The efficiency is estimated with respect to the offline muon matched to L1 trigger object with ΔR < 0.3 as well as passing identification optimized for high-pT muons and track based isolation requirements with pT > 52 GeV. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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Non-Isolated Single 𝛍 Trigger Efficiency The efficiency of high-level trigger requiring single muon with pT > 50 GeV is shown as a function of the number of reconstructed vertices. The efficiency is estimated with respect to the offline muon matched to L1 trigger object with ΔR < 0.3 as well as passing identification optimized for high-pT muons and track based isolation requirements with pT > 52 GeV. The data are split with respect to the HLT muon reconstruction update deployed on 15/05/2018. The errors are statistical only. [Get pdf version] Contact: K.P. Lee |
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-- ElisabettaGallo - 2018-07-03