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CMS Detector Performance Summaries

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2025-07-28
13:21
An Energy Correlation Function Tagger for Gluon-Gluon Resonances /CMS Collaboration
This note presents a tagging method for the discrimination of processes with two final state gluons from the dominant QCD background. The tagging model is a boosted decision tree that uses energy correlation functions as input features. [...]
CMS-DP-2025-045; CERN-CMS-DP-2025-045.- Geneva : CERN, 2025 - 21 p. Fulltext: PDF;

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2025-07-28
13:21
A First Look Into Jet Energy Scale With Early 2025 Data /CMS Collaboration
We present the jet energy scale measurement with promptly reconstructed 13.6 TeV proton-proton collisions data collected by CMS in the first months of 2025..
CMS-DP-2025-044; CERN-CMS-DP-2025-044.- Geneva : CERN, 2025 - 7 p. Fulltext: PDF;

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2025-07-23
18:03
TROTA performance /CMS Collaboration
Identifying boosted hadronic top quarks poses a significant challenge within the CMS physics program, particularly in Standard Model measurements and searches for new phenomena. There are many excellent tools available for identifying wide-angle jets with top quark flavor. However, to enhance reconstruction and selection efficiencies for signal events including top quarks, an approach extending beyond large radius jets is necessary. [...]
CMS-DP-2025-043; CERN-CMS-DP-2025-043.- Geneva : CERN, 2025 - 27 p. Fulltext: PDF;

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2025-07-23
18:03
Jet Energy Scale and Resolution Measurements Using Run3 Data Collected by the CMS experiment in 2024 at 13.6 TeV /CMS Collaboration
We present a measurement of the jet energy scale and resolution for data collected by the CMS in 2024 in scope of Run3 at 13.6 TeV..
CMS-DP-2025-042; CERN-CMS-DP-2025-042.- Geneva : CERN, 2025 - 14 p. Fulltext: PDF;

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2025-07-21
10:14
2025 High voltage scan studies for RPC /CMS Collaboration
Results from the 2025 High voltage scan studies performed with the CMS RPC system are presented..
CMS-DP-2025-041; CERN-CMS-DP-2025-041.- Geneva : CERN, 2025 - 12 p. Fulltext: PDF;

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2025-07-21
10:14
RPC Early 2025 Performance /CMS Collaboration
Results on the performance of the CMS RPC system in early 2025 pp collisions are presented..
CMS-DP-2025-040; CERN-CMS-DP-2025-040.- Geneva : CERN, 2025 - 13 p. Fulltext: PDF;

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2025-07-14
14:46
ECAL performance and ES alignment with early 2025 data /CMS Collaboration
ECAL performance and ES alignment with early 2025 data
CMS-DP-2025-039; CERN-CMS-DP-2025-039.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;

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2025-07-14
14:45
ECAL performance with reprocessed 2024 data /CMS Collaboration
ECAL performance with reprocessed 2024 data..
CMS-DP-2025-038; CERN-CMS-DP-2025-038.- Geneva : CERN, 2025 - 16 p. Fulltext: PDF;

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2025-07-07
14:14
Track time uncertainties at the point of closest approach computed with MTD /CMS Collaboration
An assessment of the uncertainty on the time at the point of closest approach for tracks with time computed by the MIP Timing Detector [1] is reported in this summary, together with a study on the uncertainty on the reconstructed length of the track. The reconstructed length of the track is essential to the evaluation of the Time-of-Flight of the particle between the point of closest approach and the MIP Timing Detector and is therefore an important part of the reconstruction of an event with the usage of this novel detector..
CMS-DP-2025-037; CERN-CMS-DP-2025-037.- Geneva : CERN, 2025 - 10 p. Fulltext: PDF;

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2025-07-07
12:49
A novel track finding algorithm to identify b hadron in b jets using FusionNet: a geometric deep learning model /CMS Collaboration
Understanding the substructure of jets initiated by heavy-flavour quarks is essential for quantum chromodynamics (QCD) studies, particularly in the context of the dead-cone effect and jet quenching. The kinematics of b hadron decays present a challenge for substructure measurements with inclusive b jets. [...]
CMS-DP-2025-035; CERN-CMS-DP-2025-035.- Geneva : CERN, 2025 - 18 p. Fulltext: PDF;

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