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CMS Detector Performance Summaries

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2022-09-19
12:28
Measurement of the proton--proton collisions luminous region in CMS interaction point /CMS Collaboration
In this note the position of the LHC Beam Spot in the CMS Interaction Point is reported as a function of time, starting from the beginning of the LHC operations in 2010 to mid 2022..
CMS-DP-2022-034; CERN-CMS-DP-2022-034.- Geneva : CERN, 2022 - 6 p. Fulltext: PDF;

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2022-09-12
14:11
Upgraded CMS Fast Beam Condition Monitor for LHC Run 3 Online Luminosity and Beam Induced Background Measurements /CMS Collaboration
The Fast Beam Condition Monitor (BCM1F) for the CMS experiment at the LHC was upgraded for precision luminosity measurement in the demanding conditions foreseen for LHC Run 3. BCM1F has been rebuilt with new silicon diodes, produced on the CMS Phase 2 outer tracker PS silicon wafers. [...]
CMS-DP-2022-033; CERN-CMS-DP-2022-033.- Geneva : CERN, 2022 - 18 p. Fulltext: PDF;

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2022-09-05
13:29
ECAL SuperClustering with Machine Learning - Corrected energy performance
ECAL SuperClustering with Machine Learning - Corrected energy performance
CMS-DP-2022-032; CERN-CMS-DP-2022-032.- Geneva : CERN, 2022 - 40 p. Fulltext: PDF;

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2022-08-30
16:35
Expected Performance of Run-3 HLT b-quark jet identification /CMS Collaboration
The developement of new heavy flavour jet tagging algorithms has made large progress with the utilization of more complex neural networks during Run 2. These developements are now deployed at trigger level with the DeepJet model exchanging the DeepCSV and CSVv2 algorithms for b-tagging trigger paths. [...]
CMS-DP-2022-030; CERN-CMS-DP-2022-030.- Geneva : CERN, 2022 - 4 p. Fulltext: PDF;

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2022-08-29
12:26
Analysis of the Radiation Monitoring System's Initial Data from the GEM Detectors at the CMS Experiment /CMS Collaboration
Among the CMS upgrades in preparation for LHC RUN-3 is the installation of 144 new muon detectors based on Gas Electron Multiplier (GEM) technology at Station1 in the endcap region. In each endcap, there are integrated RadMon (active radiation sensor) units that are installed on six GEM detectors to measure the total dose and particle flux. [...]
CMS-DP-2022-031; CERN-CMS-DP-2022-031.- Geneva : CERN, 2022 - 10 p. Fulltext: PDF;

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2022-08-29
12:26
Background Estimation on ME0 Region Using FLUKA /CMS Collaboration
The CMS muon system plays an important role in the discovery of new physics like the Higgs boson and new particles. The next phase of the LHC is planned to increase luminosity to improve the discovery power. [...]
CMS-DP-2022-029; CERN-CMS-DP-2022-029.- Geneva : CERN, 2022 - 38 p. Fulltext: PDF;

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2022-08-15
11:07
A new back-propagation method for the CMS GEM chamber alignment with six misalignment parameters /CMS Collaboration
The next phase of high luminosity LHC (HL-LHC) foresees and increases the instantaneous luminosity in order to extend the discovery potential of the detector. In order to meet the increased particle rates and to ensure a robust and redundant system, CMS is adding new detector layers in the forward region of the muon system along with other upgrades. [...]
CMS-DP-2022-028; CERN-CMS-DP-2022-028.- Geneva : CERN, 2022 - 12 p. Fulltext: PDF;

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2022-07-20
13:57
The CMS GEM alignment with a new back-propagation method /CMS Collaboration
The next phase of high luminosity LHC (HL-LHC) foresees and increases the instantaneous luminosity in order to extend the discovery potential of the detector. In order to meet the increased particle rates and to ensure a robust and redundant system, CMS is adding new detector layers in the forward region of the muon system along with other upgrades. [...]
CMS-DP-2022-027; CERN-CMS-DP-2022-027.- Geneva : CERN, 2022 - 11 p. Fulltext: PDF;

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2022-07-20
13:57
Pixel Detector Performance in 2021 /CMS Collaboration
The performance of the CMS pixel detector during 900 GeV collisions recorded in 2021 is presented..
CMS-DP-2022-026; CERN-CMS-DP-2022-026.- Geneva : CERN, 2022 - 12 p. Fulltext: PDF;

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2022-07-11
12:49
Update of the MTD physics case /CMS Collaboration
The physics case for a Mip Timing detector in CMS was presented in CMS-TDR-020. An update is provided, extending the coverage for different scenarios for Barrel Timing Layer resolution, particle identification (PID) performance assessment and its application to b physics..
CMS-DP-2022-025; CERN-CMS-DP-2022-025.- Geneva : CERN, 2022 - 16 p. Fulltext: PDF;

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