Characterization of GEM Detectors for Application in the CMS Muon Detection System

TL;DR

This paper explores the potential of Gas Electron Multiplier detectors for enhancing the CMS muon detection system, presenting construction and characterization results to evaluate their feasibility for future upgrades.

Contribution

It provides a feasibility study and initial characterization of GEM detectors for muon triggering and tracking in the CMS experiment.

Findings

Successful construction of small triple-GEM prototypes

Initial characterization shows promising performance for muon detection

Potential for GEMs to complement existing muon detection technologies

Abstract

The muon detection system of the Compact Muon Solenoid experiment at the CERN Large Hadron Collider is based on different technologies for muon tracking and triggering. In particular, the muon system in the endcap disks of the detector consists of Resistive Plate Chambers for triggering and Cathode Strip Chambers for tracking. At present, the endcap muon system is only partially instrumented with the very forward detector region remaining uncovered. In view of a possible future extension of the muon endcap system, we report on a feasibility study on the use of Micro-Pattern Gas Detectors, in particular Gas Electron Multipliers, for both muon triggering and tracking. Results on the construction and characterization of small tripleGas Electron Multiplier prototype detectors are presented.