Volume 476 - 42nd International Conference on High Energy Physics (ICHEP2024) - Detectors for Future Facilities, R&D, Novel Techniques
Designing the muon system for a 10 TeV muon collider
C. Aime*, M. Brunoldi, S. Calzaferri, D. Fiorina, C. Riccardi, P. Salvini, I. Vai, P. Vitulo  on behalf of the International Muon Collider Collaboration
*: corresponding author
Full text: pdf
Pre-published on: December 17, 2024
Published on: April 29, 2025
Abstract
A 10 TeV muon collider is a promising machine for the high-energy frontier. However, the beam-induced background (BIB), originated from the interaction of leptons from muon decay with the machine, represents a big challenge. To deal with its high occupancy, new reconstruction algorithms and high-performance detectors are required.
In this context, the studies concerning the muon spectrometer are presented. A new geometry has been designed with seven (five) layers of Gas Electron Multipliers (GEMs) in the barrel (endcap) as track-sensitive chambers. In the endcaps, a layer of Picosec is added to provide time information to reject BIB hits. Picosec achieves resolutions of tens of picoseconds by amplifying, via a Micromegas, electrons from Cherenkov light produced from an incident particle on a radiator crystal. The results for the muon reconstruction efficiency and BIB mitigation are presented with the R&D outcomes with different radiators, photocathodes, and new-generation gas mixtures.
DOI: https://doi.org/10.22323/1.476.1109
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