Performance of the Cathode Strip Chamber endcap muon detectors in Run 2

TL;DR

This paper reviews the upgrades and performance of the CMS Cathode Strip Chamber muon detectors in Run 2, highlighting improvements made to handle increased luminosity and collision energy at the LHC.

Contribution

It details the design, installation, and commissioning of new chambers and electronics, and evaluates their performance during early Run 2 operations.

Findings

Enhanced detector performance in Run 2

Successful integration of new chambers and electronics

Improved muon detection efficiency

Abstract

Since the end of Run 1 of the LHC in 2012, the outermost ring has been added to the CMS Cathode Strip Chambers (CSC) endcap muon detector, and the readout electronics of the innermost ring of CSCs have been upgraded to accommodate the larger luminosity and collision energy anticipated in Run 2. A major effort was required to build, install, and commission these new chambers and electronics. This talk summarizes the improvements made during this upgrade and presents the performance of the CSC detector during the early stages of Run 2.