2025-04-07
15:50 |
詳細記錄
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2025-04-07
15:50 |
Calibration of the top and W jet tagging efficiency in 13 TeV data collected by the CMS experiment in 2016--2018
/CMS Collaboration
This note presents a collection of efficiency correction factors, to be applied to simulation, for jet tagging algorithms designed for the identification of hadronically decaying top quarks or W bosons. These scale factors are calculated from and valid for the proton--proton collision data set at √s=13\,TeV of the 2016, 2017, and 2018 data-taking eras of the CMS experiment, using the legacy data reconstruction and calibration, corresponding to a total integrated luminosity of 138\,fb−1. [...]
CMS-DP-2025-010; CERN-CMS-DP-2025-010.-
Geneva : CERN, 2025 - 28 p.
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2025-03-10
17:28 |
Performance of the ParticleNet b and bb-tagging algorithms in the CMS High-Level Trigger in Run 3
/CMS Collaboration
Dedicated ParticleNet AK4 b-tagging and AK8 bb-tagging algorithms, based on graph neural networks (GNN), for the jets reconstructed at the High-Level Trigger (HLT) were trained for the very first time in 2022 using simulated events. New triggers were developed based on these algorithms that have been integrated into the CMS HLT menu since the start of Run 3 data-taking. [...]
CMS-DP-2025-009; CERN-CMS-DP-2025-009.-
Geneva : CERN, 2025 - 12 p.
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2025-02-17
14:48 |
Bunch crossing identification studies for the CMS muon barrel local trigger
The CMS barrel muon chambers individually produce trigger primitives (TP) to be fed in the Barrel Muon Track Finder (BMTF) for Level 1 triggering. These TPs are mainly built up out of the space (position, direction) and time information provided by the Drift Tubes (DT). [...]
CMS-DP-2025-008; CERN-CMS-DP-2025-008.-
Geneva : CERN, 2025 - 15 p.
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2025-02-10
16:54 |
Performance of missing-energy triggers in 2022, 2023 and 2024
/CMS Collaboration
This note presents the performance of triggers based on missing-transverse energy using pp-collisions data collected by the CMS experiment in 2022, 2023 and 2024..
CMS-DP-2025-007; CERN-CMS-DP-2025-007.-
Geneva : CERN, 2025 - 20 p.
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2025-02-10
16:54 |
Pixel Detector Performance in Run 3 (December 2024)
/CMS Collaboration
The Large Hadron Collider (LHC) continued delivering proton-proton collisions in 2024 as part of the LHC Run 3 that started in 2022. The collisions are produced at the centre-of-mass energy of 13.6 TeV. [...]
CMS-DP-2025-006; CERN-CMS-DP-2025-006.-
Geneva : CERN, 2025 - 34 p.
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2025-02-10
16:54 |
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2025-02-03
16:15 |
Performance of a new Beam halo tagger for the ECAL endcap
/CMS Collaboration
Beam halo can be a huge background for analyses that search for the presence of a single photon accompanied by missing transverse energy in the detector. It can be rejected in the ECAL barrel (EB) by requiring the timing of the photon within a certain window. [...]
CMS-DP-2025-004; CERN-CMS-DP-2025-004.-
Geneva : CERN, 2025 - 13 p.
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2025-01-27
11:40 |
GE1/1 Performance using 2023 p-p collision data at √s=13.6 TeV
/CMS Collaboration
This study presents the muon detection efficiency of the GE1/1 detectors in a Z boson enriched data sample corresponding to 17.8 fb−1 of data collected at √s=13.6 TeV during 2023. The muons are reconstructed with the global CMS detector, excluding the GE1/1 detectors themselves to avoid biasing the results, and compatible hits are searched for. [...]
CMS-DP-2025-003; CERN-CMS-DP-2025-003.-
Geneva : CERN, 2025 - 13 p.
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2025-01-20
10:02 |
PPS collected luminosity in 2024
/CMS Collaboration
The Precision Proton Spectrometer (PPS) is a forward-proton spectrometer using near-beam detectors (inside Roman Pots, RPs) located symmetrically on both sides of the CMS experiment, at a distance of about 220 m.
The tracking system consists of four RPs equipped with 3D pixel sensors. [...]
CMS-DP-2025-002; CERN-CMS-DP-2025-002.-
Geneva : CERN, 2025 - 3 p.
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