“School of Particles”
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| Paper IPM / Particles / 8934 |
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The Compact Muon Solenoid (CMS) detector is described. The detector operates at
the Large Hadron Collider (LHC) at CERN. It was conceived to study proton-proton (and lead-lead)collisions at a centre-of-mass energy of 14 TeV (5.5 TeV nucleon-nucleon) and at luminosities up to 1034 cm−2s−1 (1027 cm−2s−1). At the core of the CMS detector sits a high-magneticfield and large-bore superconducting solenoid surrounding an all-silicon pixel and strip tracker, a
lead-tungstate scintillating-crystals electromagnetic calorimeter, and a brass-scintillator sampling
hadron calorimeter. The iron yoke of the flux-return is instrumented with four stations of muon detectors covering most of the 4π solid angle. Forward sampling calorimeters extend the pseudorapidity
coverage to high values (|η|\leqslant5) assuring very good hermeticity. The overall dimensions of the CMS detector are a length of 21.6 m, a diameter of 14.6 m and a total weight of 12500t.
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