The CMS RPC Detector Performance and Stability during LHC RUN-2

TL;DR

This paper reports on the performance and stability of the CMS Resistive Plate Chamber (RPC) detector during LHC Run-2, highlighting its efficiency, robustness, and predictions for future high-luminosity conditions.

Contribution

It provides a comprehensive analysis of the RPC system's performance during Run-2 and offers data-driven predictions for its behavior in HL-LHC conditions.

Findings

RPC system maintained high efficiency during Run-2

System stability was confirmed over time and varying luminosity

Predicted robust performance for HL-LHC environment

Abstract

The CMS experiment, located at the Large Hadron Collider (LHC) in CERN, has a redundant muon system composed by three different gaseous detector technologies: Cathode Strip Chambers (in the forward regions), Drift Tubes (in the central region), and Resistive Plate Chambers (both its central and forward regions). All three are used for muon reconstruction and triggering. The CMS RPC system confers robustness and redundancy to the muon trigger. The RPC system operation in the challenging background and pileup conditions of the LHC environment is presented. The RPC system provides information to all muon track finders and thus contributing to both muon trigger and reconstruction. The summary of the detector performance results obtained with proton proton collision at 13 TeV during 2016 and 2017 data taking have been presented. The stability of the system is presented in terms of efficiency and cluster size vs time and increasing instantaneous luminosity. Data-driven predictions about the expected performance during High Luminosity LHC (HL-LHC) stage have been reported.