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μτh High Level Trigger efficiency - single μ L1 seed: HLT_IsoMu{19,21}_eta2p1_LooseIsoPFTau20_SingleL1 seeded by L1_SingleMu{18,20}er 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 12.9 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. 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 functionand a Heaviside step function [Get pdf version] Contact: Riccardo Manzoni |
μτh High Level Trigger efficiency - μτ L1 seed: HLT_IsoMu{17,19}_eta2p1_LooseIsoPFTau20 seeded by L1_Mu{16,18}er_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 12.9 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. 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. [Get pdf version] Contact: Riccardo Manzoni |
Di-τh High Level Trigger efficiency: HLT_DoubleMediumIsoPFTau35_Trk1_eta2p1_Reg seeded by L1_DoubleIsoTau28er 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 12.9 fb-1 of 13 TeV data collected by CMS in 2016. The efficiency is computed per single τ-leg through the tag-and- probe method, as a function of the offline-reconstructed tau transverse momentum. A 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 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. 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.[Get pdf version] Contact: Riccardo Manzoni |
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Online b-tagging performance for calorimeter jets The CSVv2 offline b-tag discriminator before (red) and after (black) the online b-tagging applied at HLT to calorimetric jets having pT > 45 GeV and abs(eta)<2.4. The CSV (Combined Secondary Vertex) algorithm combines the information of displaced tracks with the information of secondary vertices associated to the jet using a multivariate technique. Only the first eight leading jets have been taken into account. Events have been collected requiring online PFjets Sum(ET) > 800 GeV and four calorimetric jets with ET >45 GeV and abs(eta)<2.4[Get pdf version] Contact: Silvio Donato |
Online calorimeter b-tag efficiency versus offline CSV Efficiency of the online b-tagging cut (CSV > 0.56) with respect to the offline b-tagging discriminant as a function of the latter, for online calorimetric jets having pT > 45 GeV and abs(eta)<2.4. Only the first eight leading jets have been taken into account. Events have been collected requiring online PFjets Sum(ET) > 800 GeV and four calorimetric jets with ET >45 GeV and abs(eta)<2.4. [Get pdf version] Contact: Silvio Donato |
Online b-tagging performance versus -log(1-CSV) for calorimeter jets Negative logarithm of 1 - offline b-tag discriminant before (red) and after (black) the online b-tagging applied at HLT to calorimetric jets having pT > 45 GeV and abs(eta)<2.4. Only the first eight leading jets have been taken into account. Events have been collected requiring online PFjet Sum( ET) > 800 GeV and four calorimetric jets with ET >45 GeV and abs(eta)<2.4. [Get pdf version] Contact: Silvio Donato |
Online calorimeter b-tag efficiency vs offline -log(1-CSV) Efficiency of the online b-tagging cut (CSV > 0.56) with respect to the negative logarithm of 1 - offline b-tagging discriminant as a function of the latter, for online calorimetric jets having pT > 45 GeV and abs(eta)<2.4. Only the first eight leading jets have been taken into account. Events have been collected requiring online PFjet Sum(ET) > 800 GeV and four calorimetric jets with ET >45 GeV and abs(eta)<2.4. [Get pdf version] Contact: Silvio Donato |
Online b-tagging performance for Particle Flow Offline b-tag discriminant before (red) and after (black) the online b-tagging applied at HLT to PF jets having pT > 40 GeV and abs(eta)<2.4. Events have been collected requiring online PFjet Sum(ET) > 800 GeV and six PF jets with ET >40 GeV and abs(eta)<2.6. [Get pdf version] Contact: Silvio Donato |
Online Particle Flow b-tag efficiency vs offline CSV Efficiency of the online b-tagging cut (CSV > 0.63) with respect to the offline b-tagging discriminant as a function of the latter, for online PF jets having pT > 40 GeV and abs(eta)<2.4. Events have been collected requiring online PFjet Sum(ET) > 800 GeV and six PF jets with ET >40 GeV and abs(eta)<2.6. [Get pdf version] Contact: Silvio Donato |
Online b-tagging performance versus -log(1-CSV) for Particle Flow jets Negative logarithm of 1 - offline b-tag discriminant before (red) and after (black) the online b-tagging applied at HLT to PF jets having pT > 40 GeV and abs(eta)<2.4. Events have been collected requiring online PFjet Sum(ET) > 800 GeV and six PF jets with ET >40 GeV and abs(eta)<2.6. [Get pdf version] Contact: Silvio Donato |
Online PF b-tag efficiency vs offline -log(1-CSV) Efficiency of the online b-tagging cut (CSV > 0.63) with respect to the negative logarithm of 1 - offline b-tagging discriminant as a function of the latter, for online PF jets having pT > 40 GeV and abs(eta)<2.4. Events have been collected requiring online PFjet Sum(ET) > 800 GeV and six PFjets with ET >40 GeV and abs(eta)<2.6. [Get pdf version] Contact: Silvio Donato |
Efficiency of the HLT_PFHT800 trigger as a function of offline HT, measured in 4.3 fb-1 of 13 TeV data selected with an online requirement of ETmiss > 100 GeV. The event sample includes additional offline requirements of Nleps = 0 , ETmiss > 200 GeV, and Njets ≥ 4. The efficiency reaches the plateau for HT > 900 GeV. The plateau efficiency is over 99%. The plateau reaches 50 GeV earlier than in 2015 thanks to switch from 40 to 30 GeV jets at HLT. [Get pdf version] Contacts: Manuel Franco Sevilla, Dominick Olivito |
Efficiency of the HLT_Ele15_IsoVVVL_PFHT400 triggers as a function of HT, measured in 1.5 fb-1 of 13 TeV data with an online requirement of ETmiss > 100 GeV. The event sample includes offline requirements of Njets ≥ 4, and ETmiss > 200 GeV. The efficiency reaches plateau for HT > 429 GeV for the electrons. The plateau efficiency is over 99%. The non-zero trigger efficiency at low HT is due to the different definitions of HT used at HLT and offline. The former uses jets up to abs(eta) < 3, and includes leptons, while offline HT uses jets up to abs(eta) < 2.4 and removes jets overlapping with leptons .[Get pdf version] Contacts: Manuel Franco Sevilla, Dominick Olivito |
Efficiency of the HLT_Mu15_IsoVVVL_PFHT400 triggers as a function of HT, measured in 1.5 fb-1 of 13 TeV data with an online requirement of ETmiss > 100 GeV. The event sample includes offline requirements of Njets ≥ 4, and ETmiss > 200 GeV. The efficiency reaches plateau for HT > 396 GeV for muons. The plateau efficiency is over 99%. The non-zero trigger efficiency at low HT is due to the different definitions of HT used at HLT and offline. The former uses jets up to abs(eta) < 3, and includes leptons, while offline HT uses jets up to abs(eta) < 2.4 and removes jets overlapping with leptons. [Get pdf version] Contacts: Manuel Franco Sevilla, Dominick Olivito |
Efficiency of the logical OR of the HLT_PFMET[NoMu]100_PFMHT[NoMu]100_IDTight triggers as a function of offline ETmiss measured in 4.3 fb-1 of 13 TeV data selected with online requirements of a 25 GeV electron. The event sample includes additional offline requirements of Nleps = 1, Njets ≥ 4, and HT > 500 GeV. The efficiency reaches plateau for ETmiss > 228 GeV. The plateau efficiencies are about 99%. The “NoMu” version of the trigger does not include muons in the ETmiss calculation at HLT (i.e. muons are considered ETmiss), so the trigger efficiency can be non-zero for low offline ETmiss (where muons are treated as visible objects). [Get pdf version] Contacts: Manuel Franco Sevilla, Dominick Olivito |
Efficiency of the logical OR of the HLT_PFMET[NoMu]100_PFMHT[NoMu]100_IDTight triggers as a function of offline ETmiss measured in 4.3 fb-1 of 13 TeV data selected with online requirements of a 22 GeV muon. The event sample includes additional offline requirements of Nleps = 1, Njets ≥ 4, and HT > 500 GeV. The efficiency reaches plateau for ETmiss > 210 GeV (right). The plateau efficiencies are about 99%. The “NoMu” version of the trigger does not include muons in the ETmiss calculation at HLT (i.e. muons are considered ETmiss), so the trigger efficiency can be non-zero for low offline ETmiss (where muons are treated as visible objects) [Get pdf version] Contacts: Manuel Franco Sevilla, Dominick Olivito |
Random‐Cone Average Offset Pt measured in MC per True PileUp as a function of Eta in the HLT reconstruction, showing the various particle type contributions. Measured in Simulated data with a flat distribution of 0 to 50 Pileup events. The left plot shows the offset extrapolated to 0 PU, and the right plot shows the offset /PU. [Get pdf version left] [Get pdf version right] Contact: Jane Nachtman |
Jet energy resolution as a function of the reconstructed jet eta (left) and of the generated jet (gen-jet) pt (right), after applying the jet energy corrections at High Level Trigger using simulated data with 25 nsec separation of bunch crossing. The perfomances of calorimeter jets and Particle Flow jets are compared. The former are reconstructed with calorimeter only, while the second are reconstructed using calorimeter and tracking information. Each reconstructed jet from a hard scattering vertex is matched to the closest generated jet. In the plots R indicates the parameter in the anti-Kt algorithm. [Get pdf version left] [Get pdf version right] Contact: Jane Nachtman |
Efficiency of the HLT_PFHT750_4JetPt50 trigger as a function of the offline HT, measured in 6.3 fb-1 of data recorded in 2016 at 13 TeV. The trigger calculates the total HT from all ParticleFlow jets with pT >50 GeV, requiring at least 4 jets. The signal trigger cuts at HT>750 GeV. The measurement is performed in events selected with a set of single muon triggers, requiring the offline pT of the 8 leading jets to be greater than 60 GeV and abs(eta) < 2.5. Jets are required to pass selection criteria based on their components and energy fractions in order to suppress instrumental backgrounds. [Get pdf version] Contacts: Nadir Daci, Evangelos Paradas |
Relative efficiency of the HLT_PFHT750_4JetPt50 trigger as a function of the offline HT, measured in 6.3 fb-1 of data recorded in 2016 at 13 TeV. The trigger calculates the total HT from all ParticleFlow jets with pT>50 GeV, requiring at least 4 jets. The measurement is performed in events selected with a lower-threshold version of the trigger. The reference trigger cuts at HT>550 GeV, and the signal trigger cuts at HT>750 GeV. The offline selection requires 8 jets with pT>60 GeV and abs(eta)<2.5. Jets are required to pass selection criteria based on their components and energy fractions to suppress instrumental backgrounds.[Get pdf version] Contacts: Nadir Daci, Evangelos Paradas |