R&D towards the CMS RPC Phase-2 upgrade
A. Fagot, A. Cimmino, S. Crucy, M. Gul, A.A.O. Rios, M. Tytgat, N., Zaganidis, S. Aly, Y. Assran, A. Radi, A. Sayed, G. Singh, M. Abbrescia, G., Iaselli, M. Maggi, G. Pugliese, P. Verwilligen, W. Van Doninck, S., Colafranceschi, A. Sharma, L. Benussi, S. Bianco, D.Piccolo
TL;DR
This paper discusses the development and upgrade plans for the CMS muon system's RPC detectors to improve efficiency and background mitigation in high pseudo-rapidity regions.
Contribution
It introduces the R&D efforts for installing finer-granularity RPCs in CMS's outer muon stations to enhance redundancy and performance.
Findings
Design of RPCs with finer granularity
Expected improvements in muon trigger efficiency
Enhanced background rejection capabilities
Abstract
The high pseudo-rapidity region of the CMS muon system is covered by Cathode Strip Chambers (CSC) only and lacks redundant coverage despite the fact that it is a challenging region for muons in terms of backgrounds and momentum resolution. In order to maintain good efficiency for the muon trigger in this region additional RPCs are planned to be installed in the two outermost stations at low angle named RE3/1 and RE4/1. These stations will use RPCs with finer granularity and good timing resolution to mitigate background effects and to increase the redundancy of the system.
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