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CMSPublic Web>PhysicsResults>HighLevelTriggerRunIIResults>HLTplotsSummary2016 (2017-08-23, ElisabettaGallo) EditAttachPDF -- ElisabettaGallo - 2016-12-21
Summary performance Plots for 2016 data
| Total HLT_IsoMu24 OR HLT_IsoTkMu24 Efficiency Efficiency as a function of pT for the OR of the HLT_IsoMu24 and HLT_IsoTkMu24 with respect to the offline reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV as well as passing an isolation selection. [Get pdf version] Contact: Benjamin Radburn-Smith |
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| Total HLT_IsoMu24 OR HLT_IsoTkMu24 Efficiency Efficiency as a function of η for the OR of the HLT_IsoMu24 and HLT_IsoTkMu24 with respect to the offline reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV as well as passing an isolation selection. [Get pdf version] Contact: Benjamin Radburn-Smith |
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| Total HLT_IsoMu24 OR HLT_IsoTkMu24 Efficiency- zoomed in Efficiency as a function of η for the OR of the HLT_IsoMu24 and HLT_IsoTkMu24 with respect to the offline reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV as well as passing an isolation selection. [Get pdf version] Contact: Benjamin Radburn-Smith |
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| Total HLT_IsoMu24 OR HLT_IsoTkMu24 Efficiency Efficiency as a function of the number of reconstructed vertices for the OR of the HLT_IsoMu24 and HLT_IsoTkMu24 with respect to the offline reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV as well as passing an isolation selection. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| Total HLT_IsoMu24 OR HLT_IsoTkMu24 Efficiency- zoomed in Efficiency as a function of the number of reconstructed vertices for the OR of the HLT_IsoMu24 and HLT_IsoTkMu24 with respect to the offline reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV as well as passing an isolation selection. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_IsoMu24 OR HLT_IsoTkMu24 Efficiency- wrt L1 Efficiency as a function of pT for the OR of the HLT_IsoMu24 and HLT_IsoTkMu24 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV as well as passing an isolation selection. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_IsoMu24 OR HLT_IsoTkMu24 Efficiency- wrt L1 Efficiency as a function of eta for the OR of the HLT_IsoMu24 and HLT_IsoTkMu24 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV as well as passing an isolation selection. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_IsoMu24 OR HLT_IsoTkMu24 Efficiency- wrt L1 zoomed in Efficiency as a function of eta for the OR of the HLT_IsoMu24 and HLT_IsoTkMu24 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV as well as passing an isolation selection. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_IsoMu24 OR HLT_IsoTkMu24 Efficiency- wrt L1 Efficiency as a function of the number of reconstructed vertices for the OR of the HLT_IsoMu24 and HLT_IsoTkMu24 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV as well as passing an isolation selection. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_IsoMu24 OR HLT_IsoTkMu24 Efficiency- wrt L1 zoomed in Efficiency as a function of the number of reconstructed vertices for the OR of the HLT_IsoMu24 and HLT_IsoTkMu24 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV as well as passing an isolation selection. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_Mu24 OR HLT_TkMu24 Efficiency wrt L1 Efficiency of the reconstruction as a function of pT for the OR of the HLT_Mu24 and HLT_TkMu24 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_Mu24 OR HLT_TkMu24 Efficiency wrt L1 Efficiency of the reconstruction as a function of eta for the OR of the HLT_Mu24 and HLT_TkMu24 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_Mu24 OR HLT_TkMu24 Efficiency wrt L1 - zoomed in Efficiency of the reconstruction as a function of eta for the OR of the HLT_Mu24 and HLT_TkMu24 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_Mu24 OR HLT_TkMu24 Efficiency wrt L1 Efficiency of the reconstruction as a function of the number of reconstructed vertices for the OR of the HLT_Mu24 and HLT_TkMu24 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_Mu24 OR HLT_TkMu24 Efficiency wrt L1 - zoomed in Efficiency of the reconstruction as a function of the number of reconstructed vertices for the OR of the HLT_Mu24 and HLT_TkMu24 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 24 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| Total HLT_Mu50 OR HLT_TkMu50 Efficiency Efficiency as a function of pT for the OR of the HLT_Mu50 and HLT_TkMu50 with respect to the offline reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 50 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| Total HLT_Mu50 OR HLT_TkMu50 Efficiency Efficiency as a function of eta for the OR of the HLT_Mu50 and HLT_TkMu50 with respect to the offline reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 50 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| Total HLT_Mu50 OR HLT_TkMu50 Efficiency - zoomed in Efficiency as a function of eta for the OR of the HLT_Mu50 and HLT_TkMu50 with respect to the offline reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 50 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| Total HLT_Mu50 OR HLT_TkMu50 Efficiency Efficiency as a function of the number of reconstructed vertices for the OR of the HLT_Mu50 and HLT_TkMu50 with respect to the offline reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 50 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| Total HLT_Mu50 OR HLT_TkMu50 Efficiency - zoomed in Efficiency as a function of the number of reconstructed vertices for the OR of the HLT_Mu50 and HLT_TkMu50 with respect to the offline reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 50 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_Mu50 OR HLT_TkMu50 Efficiency wrt L1 Efficiency as a function of pT for the OR of the HLT_Mu50 and HLT_TkMu50 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 50 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_Mu50 OR HLT_TkMu50 Efficiency wrt L1 Efficiency as a function of eta for the OR of the HLT_Mu50 and HLT_TkMu50 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 50 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_Mu50 OR HLT_TkMu50 Efficiency wrt L1 - zoomed in Efficiency as a function of eta for the OR of the HLT_Mu50 and HLT_TkMu50 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 50 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_Mu50 OR HLT_TkMu50 Efficiency wrt L1 Efficiency as a function of the number of reconstructed vertices for the OR of the HLT_Mu50 and HLT_TkMu50 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 50 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| HLT_Mu50 OR HLT_TkMu50 Efficiency wrt L1 - zoomed in Efficiency as a function of the number of reconstructed vertices for the OR of the HLT_Mu50 and HLT_TkMu50 with respect to the L1 online reconstructed muon passing identification and isolation requirements. These two trigger paths require a muon reconstructed online with pT > 50 GeV. [Get pdf version] Contact: Benjamin Radburn-Smith |  |
| Jet trigger efficiency The trigger efficiency measured in the single muon events, as a function of the offline reconstructed (AK4) jet, showing the efficiency to reconstruct and identify the (AK4) jet at the High Level Trigger (HLT). The offline and online jets are reconstructed using the Particle Flow algorithm. The trigger was re-run to reproduce the HLT jets in order to match them with the offline jets. The pseudorapidity range to reconstruct the jets was restricted to abs(eta)<2.4.The integrated luminosity used is 7.5 fb-1. [Get pdf version] Contact: Milos Dordevic |
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| MET Trigger efficiency HLT_PFMET170_HBHE_BeamHaloCleaned seeded by full set of L1ETM (up to L1ETM120) The Level-1 and HLT efficiency measured in single electron events, as a function of the offline missing transverse energy. The events were selected using single electron triggers, required to have at least one offline electron and to have no offline muons. The events with muons are not included in the plots because the MET reconstructed at Level-1 do not include contributions from muons, while the offline MET includes them in the reconstruction. Both the offline and online MET are reconstructed with the Particle Flow algorithm. The integrated luminosity used is 7.5 fb-1. [Get pdf version] Contact: Milos Dordevic |
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| Efficiency w.r.t. Electron pT in EB Electron trigger efficiency as a function of the reconstructed electron transverse momentum (pT) in the barrel part of the detector with pseudorapidity abs(η)≤ 1.479 in the full 2016 dataset corresponding to 36.3 fb-1 collected at sqrt(s)=13 TeV. The efficiency is measured by a Z in ee tag-and-probe method with respect to cut-based tight electron identification. The plotted uncertainties are statistical only. The last bin includes the overflow, i.e. also probes with pT>200 GeV. HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight are the lowest transverse energy threshold unprescaled single electron triggers that require ET>27 GeV and 25 GeV respectively, the latter also being restricted to abs(η)<2.17. HLT_Ele23_CaloIdL_TrackIdL_IsoVL and HLT_Ele12_CaloIdL_TrackIdL_IsoVL are the two legs of the lowest threshold unprescaled dielectron trigger HLT_Ele23_Ele12_CaloIdL_TrackIdL_IsoVL_DZ that requires ET>23 (12) GeV for the leading (subleading) electron. The “DZ” requirement on the distance of closest approach in Z direction between the two electron tracks is ~ 99.5% efficient. Electron triggers are seeded via a logical OR of various level-1 trigger items. At the highest instantaneous luminosities, the level-1 ET threshold was higher than the HLT threshold contributing to the delayed turn-on of the efficiency as a function of pT. In particular for the single electron triggers shown here, the lowest unprescaled L1 seed required an isolation criteria to be passed and had a threshold of ET=26 GeV at L = 1.05∙1034 cm-2s-1 increasing to ET=34 GeV above L = 1.45∙1034 cm-2s-1. Several other sources contributed to inefficiencies for the single electron triggers HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight. The most important of these are the selection on H/E (the ratio of the energy measured in the hadron calorimeter and the electron energy), the electromagnetic and hadron calorimeter isolations, and the track fit 𝜒2 in the endcap region. [Get pdf version] Contact: Arun Kumar |
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| Efficiency w.r.t. Electron pT in EE Electron trigger efficiency as a function of the reconstructed electron transverse momentum (pT) in endcap part of the detector with pseudorapidity 1.479 <abs(η)≤ 2.5 in the full 2016 dataset corresponding to 36.3 fb-1 collected at sqrt(s)=13 TeV. The efficiency is measured by a Z in ee tag-and-probe method with respect to cut-based tight electron identification. The reconstructed electron pseudorapidity is restricted to the acceptance of the trigger path that is abs(η)<2.5 except where specified elsewhere. The plotted uncertainties are statistical only. The last bin includes the overflow, i.e. also probes with pT>200 GeV. HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight are the lowest transverse energy threshold unprescaled single electron triggers that require ET > 27 GeV and 25 GeV respectively, the latter also being restricted to abs(η)<2.17. HLT_Ele23_CaloIdL_TrackIdL_IsoVL and HLT_Ele12_CaloIdL_TrackIdL_IsoVL are the two legs of the lowest threshold unprescaled dielectron trigger HLT_Ele23_Ele12_CaloIdL_TrackIdL_IsoVL_DZ that requires ET >23 (12) GeV for the leading (sub-leading) electron. The “DZ” requirement on the distance of closest approach in Z direction between the two electron tracks is ~ 99.5% efficient. At the highest instantaneous luminosities, the level-1 ET threshold was higher than the HLT threshold contributing to the delayed turn-on of the efficiency as a function of pT. In particular for the single electron triggers shown here, the lowest unprescaled L1 seed required an isolation criteria to be passed and had a threshold of ET=26 GeV at L = 1.05∙1034 cm-2s-1 increasing to ET=34 GeV above L = 1.45∙1034 cm-2s-1. Several other sources contributed to inefficiencies for the single electron triggers HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight. The most important of these are the selection on H/E (the ratio of the energy measured in the hadron calorimeter and the electron energy), the electromagnetic and hadron calorimeter isolations, and the track fit 𝜒2 in the endcap region. [Get pdf version] Contact: Arun Kumar |
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| Efficiency w.r.t. Electron Eta (pT > 50 GeV) Electron trigger efficiency as a function of the reconstructed electron pseudo rapidity (η) in the full 2016 dataset corresponding to 36.3 fb-1 collected at sqrt(s)=13 TeV. The efficiency is measured by a Z in ee tag-and-probe method with respect to cut-based tight electron identification. It is required that the reconstructed electron transverse momentum (pT) is greater than 50 GeV to show the behavior on the efficiency plateau in pT. The plotted uncertainties are statistical only. HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight are the lowest transverse energy threshold unprescaled single electron triggers that require ET>27 GeV and 25 GeV respectively, the latter also being restricted to abs(η)<2.17. HLT_Ele23_CaloIdL_TrackIdL_IsoVL and HLT_Ele12_CaloIdL_TrackIdL_IsoVL are the two legs of the lowest threshold unprescaled dielectron trigger HLT_Ele23_Ele12_CaloIdL_TrackIdL_IsoVL_DZ that requires ET>23 (12) GeV for the leading (subleading) electron. The “DZ” requirement on the distance of closest approach in Z direction between the two electron tracks is ~ 99.5% efficient. At the highest instantaneous luminosities, the level-1 ET threshold was higher than the HLT threshold contributing to the efficiency loss at lower pT. In particular for the single electron triggers shown here, the lowest unprescaled L1 seed required an isolation criteria to be passed and had a threshold of ET=26 GeV at L = 1.05∙1034 cm-2s-1 increasing to ET=34 GeV above L = 1.45∙1034 cm-2s-1. Several other sources contributed to inefficiencies for the single electron triggers HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight. The most important of these are the selection on H/E (the ratio of the energy measured in the hadron calorimeter and the electron energy), the electromagnetic and hadron calorimeter isolations, and the track fit 𝜒2 in the endcap region. [Get pdf version] Contact: Arun Kumar |
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| Efficiency w.r.t. Electron Eta (pt > 8 GeV) Electron trigger efficiency as a function of the reconstructed electron pseudo rapidity (η) in the full 2016 dataset corresponding to 36.3 fb-1 collected at sqrt(s)=13 TeV. The efficiency is measured by a Z in ee tag-and-probe method with respect to cut-based tight electron identification. It is required that the reconstructed electron transverse momentum (pT) is at least 8 GeV higher than the trigger threshold to show the behavior with typical analysis cuts. The plotted uncertainties are statistical only. HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight are the lowest transverse energy threshold unprescaled single electron triggers that require ET>27 GeV and 25 GeV respectively, the latter also being restricted to abs(η)<2.17. HLT_Ele23_CaloIdL_TrackIdL_IsoVL and HLT_Ele12_CaloIdL_TrackIdL_IsoVL are the two legs of the lowest threshold unprescaled dielectron trigger HLT_Ele23_Ele12_CaloIdL_TrackIdL_IsoVL_DZ that requires ET>23 (12) GeV for the leading (subleading) electron. The “DZ” requirement on the distance of closest approach in Z direction between the two electron tracks is ~ 99.5% efficient. At the highest instantaneous luminosities, the level-1 ET threshold was higher than the HLT threshold contributing to the efficiency loss at lower pT. In particular for the single electron triggers shown here, the lowest unprescaled L1 seed required an isolation criteria to be passed and had a threshold of ET=26 GeV at L = 1.05∙1034 cm-2s-1 increasing to ET=34 GeV above L = 1.45∙1034 cm-2s-1. Several other sources contributed to inefficiencies for the single electron triggers HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight. The most important of these are the selection on H/E (the ratio of the energy measured in the hadron calorimeter and the electron energy), the electromagnetic and hadron calorimeter isolations, and the track fit 𝜒2 in the endcap region. [Get pdf version] Contact: Arun Kumar |
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| Efficiency w.r.t. Number of Vertices (EB) pT > 50 GeV Electron trigger efficiency as a function of the number of reconstructed vertices - that is used to estimate the amount of pile-up in the event - in the full 2016 dataset corresponding to 36.3 fb-1 collected at sqrt(s)=13 TeV in the barrel part of the detector with pseudorapidity abs(η) ≤ 1.479. The efficiency is measured by a Z in ee tag-and-probe method with respect to cut-based tight electron identification. It is required that the reconstructed electron transverse momentum (pT) is higher than 50 GeV to show the behaviour on the efficiency plateau in pT. The reconstructed electron pseudorapidity is restricted to the acceptance of the trigger path that is abs(η)<2.5 except where specified elsewhere. The plotted uncertainties are statistical only. HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight are the lowest transverse energy threshold unprescaled single electron triggers that require ET>27 GeV and 25 GeV respectively, the latter also being restricted to abs(η)<2.17. HLT_Ele23_CaloIdL_TrackIdL_IsoVL and HLT_Ele12_CaloIdL_TrackIdL_IsoVL are the two legs of the lowest threshold unprescaled dielectron trigger HLT_Ele23_Ele12_CaloIdL_TrackIdL_IsoVL_DZ that requires ET>23 (12) GeV for the leading (subleading) electron. The “DZ” requirement on the distance of closest approach in Z direction between the two electron tracks is ~ 99.5% efficient. At the highest instantaneous luminosities, the level-1 ET threshold was higher than the HLT threshold contributing to the efficiency loss at lower pT. In particular for the single electron triggers shown here, the lowest unprescaled L1 seed required an isolation criteria to be passed and had a threshold of ET=26 GeV at L = 1.05∙1034 cm-2s-1 increasing to ET=34 GeV above L = 1.45∙1034 cm-2s-1. Several other sources contributed to inefficiencies for the single electron triggers HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight. The most important of these are the selection on H/E (the ratio of the energy measured in the hadron calorimeter and the electron energy), the electromagnetic and hadron calorimeter isolations, and the track fit 𝜒2 in the endcap region. [Get pdf version] Contact: Arun Kumar |
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| Efficiency w.r.t. Number of Vertices (EE) pT > 50 GeV Electron trigger efficiency as a function of the number of reconstructed vertices - that is used to estimate the amount of pile-up in the event - in the full 2016 dataset corresponding to 36.3 fb-1 collected at sqrt(s)=13 TeV in the endcap part of the detector with pseudorapidity 1.479 < abs(η)≤ 2.5. The efficiency is measured by a Z in ee tag-and-probe method with respect to cut-based tight electron identification. It is required that the reconstructed electron transverse momentum (pT) is higher than 50 GeV to show the behaviour on the efficiency plateau in pT. The reconstructed electron pseudorapidity is restricted to the acceptance of the trigger path that is abs(η)<2.5 except where specified elsewhere. The plotted uncertainties are statistical only. HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight are the lowest transverse energy threshold unprescaled single electron triggers that require ET>27 GeV and 25 GeV respectively, the latter also being restricted to abs(η)<2.17. HLT_Ele23_CaloIdL_TrackIdL_IsoVL and HLT_Ele12_CaloIdL_TrackIdL_IsoVL are the two legs of the lowest threshold unprescaled dielectron trigger HLT_Ele23_Ele12_CaloIdL_TrackIdL_IsoVL_DZ that requires ET>23 (12) GeV for the leading (subleading) electron. The “DZ” requirement on the distance of closest approach in Z direction between the two electron tracks is ~ 99.5% efficient. At the highest instantaneous luminosities, the level-1 ET threshold was higher than the HLT threshold contributing to the efficiency loss at lower pT. In particular for the single electron triggers shown here, the lowest unprescaled L1 seed required an isolation criteria to be passed and had a threshold of ET=26 GeV at L = 1.05∙1034 cm-2s-1 increasing to ET=34 GeV above L = 1.45∙1034 cm-2s-1. Several other sources contributed to inefficiencies for the single electron triggers HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight. The most important of these are the selection on H/E (the ratio of the energy measured in the hadron calorimeter and the electron energy), the electromagnetic and hadron calorimeter isolations, and the track fit 𝜒2 in the endcap region. [Get pdf version] Contact: Arun Kumar |
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| Efficiency w.r.t. Number of Vertices (EB) pT > 8 GeV Electron trigger efficiency as a function of the number of reconstructed vertices - that is used to estimate the amount of pile-up in the event - in the full 2016 dataset corresponding to 36.3 fb-1 collected at sqrt(s)=13 TeV in the barrel part of the detector with pseudorapidity abs(η)≤ 1.479. The efficiency is measured by a Z in ee tag-and-probe method with respect to cut-based tight electron identification. It is required that the reconstructed electron transverse momentum (pT) is at least 8 GeV higher than the trigger threshold to show the behaviour with typical analysis cuts. The reconstructed electron pseudorapidity is restricted to the acceptance of the trigger path that is abs(η)<2.5 except where specified elsewhere. The plotted uncertainties are statistical only. HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight are the lowest transverse energy threshold unprescaled single electron triggers that require ET>27 GeV and 25 GeV respectively, the latter also being restricted to abs(η)<2.17. HLT_Ele23_CaloIdL_TrackIdL_IsoVL and HLT_Ele12_CaloIdL_TrackIdL_IsoVL are the two legs of the lowest threshold unprescaled dielectron trigger HLT_Ele23_Ele12_CaloIdL_TrackIdL_IsoVL_DZ that requires ET>23 (12) GeV for the leading (subleading) electron. The “DZ” requirement on the distance of closest approach in Z direction between the two electron tracks is ~ 99.5% efficient. At the highest instantaneous luminosities, the level-1 ET threshold was higher than the HLT threshold contributing to the efficiency loss at lower pT. In particular for the single electron triggers shown here, the lowest unprescaled L1 seed required an isolation criteria to be passed and had a threshold of ET=26 GeV at L = 1.05∙1034 cm-2s-1 increasing to ET=34 GeV above L = 1.45∙1034 cm-2s-1. Several other sources contributed to inefficiencies for the single electron triggers HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight. The most important of these are the selection on H/E (the ratio of the energy measured in the hadron calorimeter and the electron energy), the electromagnetic and hadron calorimeter isolations, and the track fit 𝜒2 in the endcap region. [Get pdf version] Contact: Arun Kumar |
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| Efficiency w.r.t. Number of Vertices (EE) pT > 8 GeV Electron trigger efficiency as a function of the number of reconstructed vertices - that is used to estimate the amount of pile-up in the event - in the full 2016 dataset corresponding to 36.3 fb-1 collected at sqrt(s)=13 TeV in the endcap part of the detector with pseudorapidity 1.479 < abs(η)≤ 2.5. The efficiency is measured by a Z in ee tag-and-probe method with respect to cut-based tight electron identification. It is required that the reconstructed electron transverse momentum (pT) is at least 8 GeV higher than the trigger threshold to show the behaviour with typical analysis cuts. The reconstructed electron pseudorapidity is restricted to the acceptance of the trigger path that is abs(η)<2.5 except where specified elsewhere. The plotted uncertainties are statistical only. HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight are the lowest transverse energy threshold unprescaled single electron triggers that require ET>27 GeV and 25 GeV respectively, the latter also being restricted to abs(η)<2.17. HLT_Ele23_CaloIdL_TrackIdL_IsoVL and HLT_Ele12_CaloIdL_TrackIdL_IsoVL are the two legs of the lowest threshold unprescaled dielectron trigger HLT_Ele23_Ele12_CaloIdL_TrackIdL_IsoVL_DZ that requires ET>23 (12) GeV for the leading (subleading) electron. The “DZ” requirement on the distance of closest approach in Z direction between the two electron tracks is ~ 99.5% efficient. At the highest instantaneous luminosities, the level-1 ET threshold was higher than the HLT threshold contributing to the efficiency loss at lower pT. In particular for the single electron triggers shown here, the lowest unprescaled L1 seed required an isolation criteria to be passed and had a threshold of ET=26 GeV at L = 1.05∙1034 cm-2s-1 increasing to ET=34 GeV above L = 1.45∙1034 cm-2s-1. Several other sources contributed to inefficiencies for the single electron triggers HLT_Ele27_WPTight and HLT_Ele25_eta2p1_WPTight. The most important of these are the selection on H/E (the ratio of the energy measured in the hadron calorimeter and the electron energy), the electromagnetic and hadron calorimeter isolations, and the track fit 𝜒2 in the endcap region. [Get pdf version] Contact: Arun Kumar |
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| μτh High Level Trigger efficiency - single μ L1 seed HLT_IsoMu21_eta2p1_LooseIsoPFTau20_SingleL1 seeded by L1_SingleMu20er High Level Trigger efficiency of the τ leg of the μτh (loose isolation, pT > 20 GeV, seeded by single-μ Level-1) trigger for the H→ τμτh analysis, measured using 37.0 fb-1 of 13 TeV data collected by CMS in 2016.The efficiency is computed through the tag-and-probe method, as a function of the offline-reconstructed tau transverse momentum. Hadronically-decaying τ’s from the Z→τμτh process are selected in events that fired the single μ HLT and fulfil the baseline H→ττ requirements of well identified and isolated μτh pairs and m(ETmiss,μ) < 30 GeV. The purity of the selected data sample is larger than 95%. Passed probe τ’s are those that fired the μτh HLT and geometrically match to selected offline τ’s. Data are fitted using a convolution of a Crystal Ball function and a Heaviside step function. Data are compared to simulated DY→ ττ events selected using the same procedure.[Get pdf version] Contact: Riccardo Manzoni |
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| μτh High Level Trigger efficiency - μτ L1 seed HLT_IsoMu19_eta2p1_LooseIsoPFTau20 seeded by L1_Mu18er_Tau20er Combined L1 and High Level trigger efficiency of the τ leg of the μτh (loose isolation, pT > 20 GeV, seeded by cross μ+τ Level-1) trigger for the H→ τμτh analysis, measured using 37.0 fb-1 of 13 TeV data collected by CMS in 2016. The efficiency is computed through the tag-and-probe method, as a function of the offline-reconstructed tau transverse momentum. Hadronically-decaying τ’s from the DY→τμτh process are selected in events that fired the single μ HLT and fulfil the baseline H→ττ requirements of well identified and isolated μτh pairs and m(ETmiss,μ) < 30 GeV. The purity of the selected data sample is larger than 95%. Passed probe τ’s are those that fired the μτh HLT and geometrically match to selected offline τ’s. Data are fitted using a convolution of a Crystal Ball function and a Heaviside step function. Data are compared to simulated DY→ ττ events selected using the same procedure. [Get pdf version] Contact: Riccardo Manzoni |
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| Di-τh High Level Trigger efficiency HLT_DoubleMediumIsoPFTau35_Trk1_eta2p1_Reg seeded by L1_DoubleIsoTau28er Per-leg combined L1 and High Level trigger efficiency of the di-τh (medium isolation, pT > 35 GeV, seeded by di-τ Level-1) trigger for the H→ τhτh analysis, measured using 27.8 fb-1 of 13 TeV data collected by CMS in 2016. The efficiency is computed per single τ-leg through the tag-andprobe method, as a function of the offline-reconstructed tau transverse momentum. An utility μ+τ trigger, with selection on the τ-leg equal to those of the di-τ trigger is used. Hadronically decaying τ’s from the DY→τμτh process are selected in events that fired the single μ HLT and fulfill the baseline H→ττ requirements of well identified and isolated μτh pairs and m(ETmiss, μ) < 30 GeV. The purity of the selected data sample is larger than 95%. Passed probe τ’s are those that fired one leg of the di-τh HLT and geometrically match to selected offline τ’s. Data are fitted using a convolution of a Crystal Ball function and a Heaviside step function. Data are compared to simulated DY→ ττ events selected using the same procedure. Since the simulation contains only one version of the trigger, only the part of the 2016 dataset collected with the same version of the trigger is considered in the comparison. [Get pdf version] Contact: Riccardo Manzoni |
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| τh + ETmiss High Level Trigger efficiency - τh leg HLT_LooseIsoPFTau50_Trk30_eta2p1_MET90 seeded by L1_ETM80 High Level Trigger efficiency of the τh leg of the τh + ETmiss (medium isolation, pT > 50 GeV, seeded by ETmiss Level-1) trigger for the H±→ τhντ analysis, measured using 15.4 fb-1 of 13 TeV datacollected by CMS in 2016. The efficiency is computed through the tag-and-probe method, as a function of the offline-reconstructed tau transverse momentum. An utility τ trigger, with selection on the τ-leg equal to those of the τ+MET trigger is used. Hadronically-decaying τ’s from the DY→τμτh process are selected in events that fired the μ + ETmiss monitor HLT and for which the τh fulfils identification and isolation requirements equivalent to those used in the H±→ τhντ analysis. Passed probe τ’s are those that fired the μ + τh + ETmiss monitor HLT and geometrically match to selected offline τ’s. Data are fitted using an Error function. Data are compared to simulated DY→ ττ events selected using the same procedure. Since the simulation contains only one version of the trigger, only the part of the 2016 dataset collected with the same version of the trigger is considered in the comparison. [Get pdf version] Contact: Riccardo Manzoni |
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Edit | Attach | Topic revision: r2 - 2017-08-23 - ElisabettaGallo
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