Speaker
Description
The muon system of the CMS experiment mostly uses gas-based detectors. These detectors will suffer during the planned upgrade of the LHC also called HL-LHC. Therefore the upgrade of the detector system and trigger components are needed to tackle the enormously challenging conditions posed by the HL-LHC. New detectors will be added to improve the performance in the critical forward region 1.6 < eta < 2.4 which employs Gas Electron Multiplier (GEM) technology aiming at suppressing background triggers while maintaining high trigger efficiency. Further enhancements are foreseen with a second GEM station and with two stations of new generation RPCs, having low resistivity electrodes. These detectors will combine tracking and triggering capabilities and can stand particle rates up to a few kHz/cm^2. We summarise the project plans, current status, and its physics benefits.
Summary
On behalf of the CMS Muon Collaboration