The CMS Electromagnetic Calorimeter at the LHC
D.J.A. Cockerill

TL;DR
This paper reviews the design, status, and initial performance of the CMS electromagnetic calorimeter, a high-resolution detector component with nearly 76,000 lead tungstate crystals, crucial for physics searches at the LHC.
Contribution
It provides a comprehensive overview of the calorimeter's design, construction, and initial testing, highlighting its readiness for physics experiments at the LHC.
Findings
Calorimeter achieved high resolution in test beams
Successful detection of cosmic rays demonstrated operational readiness
Calorimeter components meet design specifications
Abstract
The CMS detector at the LHC is in the final stages of preparation. The high resolution Electromagnetic Calorimeter, which consists of nearly 76000 lead tungstate crystals, will play a crucial role in the coming physics searches undertaken by CMS. The design, status, and initial performance of the calorimeter, in test beams and with cosmic rays, will be reviewed.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Detector Development and Performance · High-Energy Particle Collisions Research
