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The CMS experiment at the CERN LHC
Journal article   Open access   Peer reviewed

The CMS experiment at the CERN LHC

CMS Collaboration, S Assouak, J.L Bonnet, Giacomo Bruno, Julien Caudron, Bernard de Callatay, Jerome De Favereau De Jeneret, Simon de Visscher, Pavel Demin, Denis Favart, …
Journal of Instrumentation, Vol.3(8), S08004
2008
DOI: 10.1088/1748-0221/3/08/S08004
url
https://doi.org/10.1088/1748-0221/3/08/S08004View
Published (Version of record) Open Access

Abstract

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 1034cm -2s-1 (1027cm-2s-1). At the core of the CMS detector sits a high-magnetic-field 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 pseudo-rapidity coverage to high values (|n | ≤ 5) 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. © 2008 IOP Publishing Ltd and SISSA.

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