Snowmass White Paper CMS Upgrade: Forward Lepton-Photon System
Burak Bilki, Lucien Cremaldi, Yasar Onel, David R. Winn, Taylan Yetkin

TL;DR
This white paper proposes an upgraded forward lepton-photon system for CMS to extend physics reach and improve performance under high luminosity conditions at the LHC.
Contribution
It introduces a new forward region system to enhance lepton, photon, and hadron calorimetry capabilities for the CMS detector.
Findings
Extended eta coverage to 2.2<eta<5 for leptons and photons.
Improved performance under high pileup and radiation conditions.
Enhanced jet energy and position measurements.
Abstract
This White Paper outlines a proposal for an upgraded forward region to extend CMS lepton (e, mu) and photon physics reach out to 2.2<eta<5 for LHC and SLHC, which also provides better performance for the existing or new forward hadron calorimetry for jet energy and (eta, phi) measurements, especially under pileup/overlaps at high lumi, as LHC luminosity, energy and radiation damage increases.
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Taxonomy
TopicsParticle Detector Development and Performance · Particle physics theoretical and experimental studies · Medical Imaging Techniques and Applications
