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CMS Detector Performance Summaries

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2022-06-29
11:38
Performance of photon energy corrections in the CMS ECAL using graph neural networks /CMS Collaboration
The Compact Muon Solenoid (CMS) detector is one of two general-purpose detectors on the energy frontier of particle physics at the CERN Large Hadron Collider (LHC). Products of proton-proton collisions at a center of mass energy of 13 TeV are reconstructed in the CMS detector to probe the standard model of particle physics, and to search for processes beyond the standard model. [...]
CMS-DP-2022-019; CERN-CMS-DP-2022-019.- Geneva : CERN, 2022 - 15 p. Fulltext: PDF;

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2022-06-29
11:38
Performance of Run 3 track reconstruction with the mkFit algorithm /CMS Collaboration
This note reports on the CMS track reconstruction at the LHC Run 3. In Run 2, the CMS track reconstruction algorithm used an iterative approach based on combinatorial Kalman Filter (CKF) [...]
CMS-DP-2022-018; CERN-CMS-DP-2022-018.- Geneva : CERN, 2022 - 18 p. Fulltext: PDF;

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2022-06-29
11:38
Tracker alignment performance in 2021 /CMS Collaboration
An accurate determination of the geometry of the inner tracking system of the CMS experiment, which comprises Silicon Pixel and Silicon Strip detectors, is of vital importance for a precise measurement of the momentum of charged particles and reconstruction of primary and secondary vertices. The process of determining the geometry parameters of the inner tracking system is called tracker alignment. During the LHC Long Shutdown 2 (2018-2021) the CMS Barrel Pixel detector was disassembled and its innermost layer was fully replaced. [...]
CMS-DP-2022-017; CERN-CMS-DP-2022-017.- Geneva : CERN, 2022 - 25 p. Fulltext: PDF;

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2022-06-20
12:55
ECAL trigger for Run 3:
ECAL trigger for Run 3:
CMS-DP-2022-016; CERN-CMS-DP-2022-016.- Geneva : CERN, 2022 - 17 p. Fulltext: PDF;

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2022-06-20
12:53
ECAL Clustering for run 3
ECAL clustering for run 3
CMS-DP-2022-015; CERN-CMS-DP-2022-015.- Geneva : CERN, 2022 - 22 p. Fulltext: PDF;

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2022-06-13
12:03
Prospects for computer-assisted data quality monitoring at the CMS pixel detector. /CMS Collaboration
Data quality monitoring (DQM) and data certification (DC) are of vital importance to advanced detectors such as CMS, and are key ingredients in assuring solid results of high-level physics analyses. The current approach for DQM and DC at CMS is mainly based on manual monitoring of reference histograms summarizing the status and performance of the detector. [...]
CMS-DP-2022-013; CERN-CMS-DP-2022-013.- Geneva : CERN, 2022 - 12 p. Fulltext: PDF;

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2022-05-30
18:43
Tracking performances for charged pions with Run2 Legacy data /CMS Collaboration
In this note the tracking efficiency measurement results are shown for legacy data collected in Run2. The charged pion relative efficiency is measured with an indirect method from the reconstruction of two decay chains $D^* \to D^0 \pi \to K \pi \pi_{slow}$ and $D^* \to D^0\pi \to K3\pi \pi_{slow}$ in data and MonteCarlo. The uncertainty of this measurement will be systematic uncertainty associated to the charged hadron reconstruction in CMS..
CMS-DP-2022-012; CERN-CMS-DP-2022-012.- Geneva : CERN, 2022 - 8 p. Fulltext: PDF;

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2022-05-23
13:52
ECAL performance plots in Run1 + Run2 and breakdown of the contributions to the energy resolution
ECAL performance plots in Run1 + Run2 and breakdown of the contributions to the energy resolution
CMS-DP-2022-011; CERN-CMS-DP-2022-011.- Geneva : CERN, 2022 - 9 p. Fulltext: PDF;

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2022-05-23
13:52
ECAL DeepSC Particle ID
Study of likelihood for the particle to be an electron/photon/jet using Deep super-clustering algorithm..
CMS-DP-2022-010; CERN-CMS-DP-2022-010.- Geneva : CERN, 2022 - 7 p. Fulltext: PDF;

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2022-05-16
15:44
Performance of electron energy calibration in the CMS ECAL using graph neural networks /CMS Collaboration
The Compact Muon Solenoid (CMS) detector is one of two general-purpose detectors on the energy frontier of particle physics at the CERN Large Hadron Collider (LHC). Products of proton-proton collisions at a center of mass energy of 13 TeV are reconstructed in the CMS detector to probe the standard model of particle physics, and to search for processes beyond the standard model. [...]
CMS-DP-2022-009; CERN-CMS-DP-2022-009.- Geneva : CERN, 2022 - 17 p. Fulltext: PDF;

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