Speaker
Description
The High-Luminosity LHC (HL-LHC), starting in 2029, will increase instantaneous luminosity by a factor ~ 7.5, posing major challenges for muon triggering and reconstruction in CMS. To address this, new Gas Electron Multiplier (GEM) detectors are being installed in the forward muon system. The first GEM station (GE1/1) was fully deployed during Long Shutdown 2, with the second (GE2/1) entering commissioning following demonstrator installations in 2023–24. A six-layer GEM station (ME0), now in production, is planned for installation during Long Shutdown 3. In Run 3, GE1/1 and GE2/1 chambers are operating with >95% efficiency, and experience gained has guided key design and electronics improvements for future stations. This talk will present the status of the three GEM projects, highlight lessons learned from production and commissioning, and outline the progress and ongoing R&D toward the ME0 station for HL-LHC operation.
| Position | Faculty |
|---|---|
| Affiliation | Delhi University |
| Country | India |
