Performances of L1 Muons, Jets and MET Trigger in Run 3

Plots presented at https://cds.cern.ch/record/2853675?ln=en

Abstract

The performances of the CMSLevel 1 Trigger (L1T) system to identify and select muons (μ), jets, and transverse energy sums is presented using the full dataset collected by CMS in 2022 at √s = 13.6 TeV corresponding to around 34 fb-1 of integrated luminosity

Figures

Figure Caption

png, pdf

L1Jet_FromEGamma_TurnOn_eta_inclusive_Zoom

L1T jet efficiency as a function of the offline jet $p_T$, for two L1 $p_T$ thresholds. Low $p_T^{L1}$ jets are observed to show a response below unity, resulting in a 50% efficiency for the $p_T^{L1} > 40$ GeV condition reached above the corresponding offline $p_T$ value. This feature is primarily due to the limited accuracy of the jet energy corrections derived on simulations.

png, pdf

L1Jet_FromEGamma_TurnOn_eta_inclusive

L1T jet efficiency as a function of the offline jet $p_T$, for two L1 $p_T$ thresholds, with an increased offline jet $p_T$ range. Low $p_T^{L1}$ jets are observed to show a response below unity, resulting in a 50% efficiency for the $p_T^{L1} > 40$ GeV condition reached above the corresponding offline $p_T$ value. This feature is primarily due to the limited accuracy of the jet energy corrections derived on simulations.

png, pdf

L1Mu_TurnOnQual12_BMTF_Zoom

L1T muon efficiency as a function of the offline muon $p_T$, for two L1 $p_T$ thresholds, only highest quality muons are considered, in BMTF.

png, pdf

L1Mu_TurnOnQual12_BMTF

L1T muon efficiency as a function of the offline muon $p_T$, for two L1 $p_T$ thresholds, only highest quality muons are considered, in BMTF, with an increased offline muon $p_T$ range . Very high momentum muons can initiate a shower in the muon detectors, leading to a small decrease of the Level 1 trigger efficiency (https://doi.org/10.1088%2F1748-0221%2F15%2F02%2Fp02027).

png, pdf

L1Mu_TurnOnQual12_OMTF_Zoom

L1T muon efficiency as a function of the offline muon $p_T$, for two L1 $p_T$ thresholds, only highest quality muons are considered, in OMTF.

png, pdf

L1Mu_TurnOnQual12_OMTF

L1T muon efficiency as a function of the offline muon $p_T$, for two L1 $p_T$ thresholds, only highest quality muons are considered, in OMTF, with an increased offline muon $p_T$ range. Very high momentum muons can initiate a shower in the muon detectors, leading to a small decrease of the Level 1 trigger efficiency (https://doi.org/10.1088%2F1748-0221%2F15%2F02%2Fp02027).

png, pdf

L1Mu_TurnOnQual12_EMTF_Zoom

L1T muon efficiency as a function of the offline muon $p_T$, for two L1 $p_T$ thresholds, only highest quality muons are considered, in EMTF.

png, pdf

L1Mu_TurnOnQual12_EMTF

L1T muon efficiency as a function of the offline muon $p_T$, for two L1 $p_T$ thresholds, only highest quality muons are considered, in EMTF, with an increased offline muon $p_T$ range.

png, pdf

L1ETSum_FromSingleMuon_ETMHF90_TurnOn_Zoom

ETMHF90 efficiency, fraction of events for which the magnitude of the vector sum of all TT $E_T$ is greater than 90 GeV, as a function of the offline transverse momentum of the event, removing the contribution from muons. In order to mitigate the impact of pile up collisions, low $E_T$ TT are excluded from the ETMHF TT sum. Moreover, jet-level energy corrections are not propagated. These two effects result in a sizeable shift of the ETMHF response with respect to the offline measurement of the missing transverse energy.

png, pdf

L1ETSum_FromSingleMuon_ETMHF90_TurnOn

ETMHF90 efficiency, fraction of events for which the magnitude of the vector sum of all TT $E_T$ is greater than 90 GeV, as a function of the offline transverse momentum of the event, removing the contribution from muons, with an increased offline transverse momentum range.

png, pdf

L1ETSum_FromSingleMuon_HTT_TurnOn_Zoom

HTT360er efficiency, fraction of events for which the scalar vector sum of all L1T jets with $E_T > 30$ GeV and -2.5 < η < 2.5 is greater than 360 GeV, as a function of the offline central hadronic transverse activity, not including jets matched to muons. Unlike $E_T$ in the TTs for ETMHF, the L1T jets are calibrated, and the turn on for HTT360er occures near 360 GeV.

png, pdf

L1ETSum_FromSingleMuon_HTT_TurnOn

HTT360er efficiency, fraction of events for which the scalar vector sum of all L1T jets with $E_T > 30$ GeV and -2.5 < η < 2.5 is greater than 360 GeV, as a function of the offline central hadronic transverse activity, not including jets matched to muons, with an increased offline hadronic transverse activity range.

-- HuguesEvard - 2023-03-28

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PDFpdf L1ETSum_FromSingleMuon_ETMHF90_TurnOn.pdf r1 manage 17.1 K 2023-03-28 - 11:49 HuguesEvard  
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PDFpdf L1ETSum_FromSingleMuon_ETMHF90_TurnOn_Zoom.pdf r1 manage 17.8 K 2023-03-28 - 11:49 HuguesEvard  
PNGpng L1ETSum_FromSingleMuon_ETMHF90_TurnOn_Zoom.png r1 manage 19.5 K 2023-03-28 - 11:49 HuguesEvard  
PDFpdf L1ETSum_FromSingleMuon_HTT_TurnOn.pdf r1 manage 17.6 K 2023-03-28 - 11:49 HuguesEvard  
PNGpng L1ETSum_FromSingleMuon_HTT_TurnOn.png r1 manage 21.6 K 2023-03-28 - 11:49 HuguesEvard  
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PDFpdf L1Jet_FromEGamma_TurnOn_eta_inclusive.pdf r1 manage 20.2 K 2023-03-28 - 11:49 HuguesEvard  
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PDFpdf L1Jet_FromEGamma_TurnOn_eta_inclusive_Zoom.pdf r1 manage 19.3 K 2023-03-28 - 11:49 HuguesEvard  
PNGpng L1Jet_FromEGamma_TurnOn_eta_inclusive_Zoom.png r1 manage 18.2 K 2023-03-28 - 11:49 HuguesEvard  
PDFpdf L1Mu_TurnOnQual12_BMTF.pdf r1 manage 27.2 K 2023-03-28 - 11:50 HuguesEvard  
PNGpng L1Mu_TurnOnQual12_BMTF.png r1 manage 22.9 K 2023-03-28 - 11:50 HuguesEvard  
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PNGpng L1Mu_TurnOnQual12_BMTF_Zoom.png r1 manage 22.7 K 2023-03-28 - 11:50 HuguesEvard  
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