par Abbas, M.;De Lentdecker, Gilles ;Dorney, Brian ;Irshad, Aamir ;Moureaux, Louis ;Pétré, Laurent ;Starling, Elizabeth Rose ;Yifan, Yang ; [et al.]
Référence Journal of Instrumentation, 16, 11, P11014
Publication Publié, 2021-11-01
Article révisé par les pairs
Résumé : After the Phase-2 high-luminosity upgrade to the Large Hadron Collider (LHC), the collision rate and therefore the background rate will significantly increase, particularly in the high η region. To improve both the tracking and triggering of muons, the Compact Muon Solenoid (CMS) Collaboration plans to install triple-layer Gas Electron Multiplier (GEM) detectors in the CMS muon endcaps. Demonstrator GEM detectors were installed in CMS during 2017 to gain operational experience and perform a preliminary investigation of detector performance. We present the results of triple-GEM detector performance studies performed in situ during normal CMS and LHC operations in 2018. The distribution of cluster size and the efficiency to reconstruct high pT muons in proton-proton collisions are presented as well as the measurement of the environmental background rate to produce hits in the GEM detector.

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