2024-09-16
13:24 |
The role of the RPCs in the CMS Level-1 Trigger during Phase-2
/CMS Collaboration
This document describes the main features of the Endcap Muon Track Finder algorithm, which is the Level 1 trigger algorithm in the endcaps. In the endcaps of the CMS experiment there are three subsystems: Cathode Strip Chambers , Gaseous Electron Multipliers, and Resistive Plate Chambers (RPCs). [...]
CMS-DP-2024-079; CERN-CMS-DP-2024-079.-
Geneva : CERN, 2024 - 11 p.
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2024-09-16
13:24 |
Pixel Detector Performance in Run 3 (June 2024)
/CMS Collaboration
The Large Hadron Collider (LHC) continued delivering proton-proton collisions in 2024 as part of the LHC Run3 that started in 2022. The collisions are produced at the centre-of-mass energy of 13.6 TeV. [...]
CMS-DP-2024-078; CERN-CMS-DP-2024-078.-
Geneva : CERN, 2024 - 32 p.
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2024-09-10
11:34 |
Performance of physics objects with low transverse momentum using ultraperipheral PbPb collisions at 5.36 TeV in 2023
/CMS Collaboration
Physics objects at low transverse momentum ($p_\mathrm{T}$) appear in several final states of interest in CMS analyses utilizing the ``photonic mode'' of LHC, i.e., as a result of photon-photon, photon-proton, or proton-nuclear interactions. The large interaction cross section of charged particles with the tracker material and the presence of the strong CMS magnetic field, however, lead to small reconstruction efficiency at low $p_\mathrm{T}$. [...]
CMS-DP-2024-011; CERN-CMS-DP-2024-011.-
Geneva : CERN, 2024 - 17 p.
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2024-09-09
12:00 |
Barrel Timing Layer crystals quality control plots
/CMS Collaboration
The note presents the latest results on the LYSO crystal quality controls, as uniformity of the light output and decay time, planarity of the crystal arrays and additionally, light transmittance and absorbance towards the production of the Barrel Timing Layer sensors..
CMS-DP-2024-077; CERN-CMS-DP-2024-077.-
Geneva : CERN, 2024 - 14 p.
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2024-09-02
08:56 |
Results of DT Longevity studies
The Drift Tube (DT) muon detector of CMS will face significant challenges as a result of the High Luminosity LHC (HL-LHC) program: it will need to function at 5 times the instantaneous luminosity that it was designed for and sustain roughly 10 times the initially expected integrated luminosity.
In order to investigate the impact of these new conditions on the detector performance, a series of accelerated irradiation tests were carried out at the CERN Gamma Irradiation Facility.
This note presents the results of longevity studies performed on one spare DT chamber after integrating approximately 50 mC/cm of charge (corresponding to 3 x HL-LHC integrated luminosity)..
CMS-DP-2024-076; CERN-CMS-DP-2024-076.-
Geneva : CERN, 2023 - 9 p.
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2024-09-02
08:56 |
Performance and quality control of the first CMS GE2/1 muon production chambers
/CMS Collaboration
The Large Hadron Collider (LHC) will soon be upgraded to prepare for the high-luminosity phase. To cope with the increase in background rates and trigger requirements, the CMS muon system is being upgraded by installing additional sets of muon detectors based on Gas Electron Multiplier (GEM) technology. [...]
CMS-DP-2024-075; CERN-CMS-DP-2024-075.-
Geneva : CERN, 2024 - 9 p.
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2024-09-02
08:56 |
Validation and performance results of the first CMS GEM GE2/1 muon production chambers
/CMS Collaboration
The Large Hadron Collider (LHC) is set to undergo upgrades to prepare for the high- luminosity phase. To manage the increased background rates and trigger requirements, the CMS muon system will be enhanced by adding additional muon detectors based on Gas Electron Multiplier (GEM) technology. [...]
CMS-DP-2024-074; CERN-CMS-DP-2024-074.-
Geneva : CERN, 2024 - 14 p.
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2024-09-02
08:56 |
GEM performance results with 2024 data
/CMS Collaboration
The GE1/1 station is made of triple GEM detectors and it was installed in CMS between
2019 and 2020. This document presents a study on the performance in terms of stability
of the electronics and efficiency [...]
CMS-DP-2024-073; CERN-CMS-DP-2024-073.-
Geneva : CERN, 2024 - 10 p.
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2024-09-02
08:56 |
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2024-09-02
08:56 |
CSC trigger primitive and segment efficiencies in 2024
/CMS Collaboration
This note contains Tag $\&$ Probe efficiency measurements for the CMS endcap muon CSCs from 2024 proton proton collisions data at 13.6 TeV. There is one plot for the tigger primitive efficiencies, and one for the reconstructed segment efficiencies..
CMS-DP-2024-069; CERN-CMS-DP-2024-069.-
Geneva : CERN, 2024 - 7 p.
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