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 $\sqrt{s}=13.6$ 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 $\sqrt{s}=13.6$ 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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2025-01-20
10:02 |
Improvement of the timing calibration in the CMS-PPS timing detectors
/CMS Collaboration
The Precision Proton Spectrometer (PPS) is a near-beam subdetector of the Compact Muon Solenoid (CMS) experiment used for detecting forward protons. It comprises tracking and timing detectors located around 220 meters from the CMS detector. [...]
CMS-DP-2025-001; CERN-CMS-DP-2025-001.-
Geneva : CERN, 2025 - 14 p.
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2024-12-20
12:18 |
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2024-12-20
12:18 |
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2024-12-20
12:18 |
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2024-12-20
12:18 |
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2024-12-20
12:18 |
ME0 Quality Control Results from Initial Productions
/CMS Collaboration
As the High-Luminosity upgrade of the Large Hadron Collider (HL-LHC) is scheduled to begin in 2026, the CMS muon system is being upgraded. One of its main upgrades is the installation of Gas Electron Multiplier (GEM) detectors, ME0, in the very forward region of the CMS endcap ($2.0 < \lvert \eta \rvert < 2.8$).
Mass production of the ME0 modules started in April 2024 and is progressing smoothly. [...]
CMS-DP-2024-126; CERN-CMS-DP-2024-126.-
Geneva : CERN, 2024 - 17 p.
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2024-12-20
12:18 |
GE1/1 Operation Plots
/CMS Collaboration
This document presents a study on the performance of the CMS GE1/1 chambers in daily operation. It shows efficiency results in 2024, also at very high granularity, the evolution of the short circuits in the detectors as well as details on the improvements applied to the trigger timing during the 2024 data taking period..
CMS-DP-2024-125; CERN-CMS-DP-2024-125.-
Geneva : CERN, 2024 - 8 p.
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