The Compact Muon Solenoid (CMS) will be a general-purpose detector designed
to run at the highest luminosity at CERN's Large Hadron Collider (LHC). The
CMS detector has been optimized for the search of the SM Higgs boson over a
mass range from 90 GeV to 1 TeV, but it also allows detection of a wide
range of possible signatures from alternative electro-weak symmetry
breaking mechanisms.
CMS is also well adapted for the study of top, beauty and tau physics at
lower luminosities, and will cover several important aspects of the heavy
ion physics program. We have chosen to identify and measure muons, photons
and electrons with high precision. The energy resolution for the above
particles will be better than 1% at 100 GeV.
At the core of the CMS detector sits a large superconducting solenoid
generating a uniform magnetic field of 4 T. The choice of a strong magnetic
field leads to a compact design for the muon spectrometer without
compromising the momentum resolution up to rapidities of 2.5. The inner
tracking system will measure all high pt charged tracks with a momentum
precision of Delta(p)/p ~ 0.1 pt (pt in TeV) in the range |eta| < 2.5.
A high-resolution crystal electromagnetic calorimeter, designed to detect
the two photon decay of an intermediate mass Higgs, is located inside the
coil. Hermetic hadronic calorimeters surround the intersection region up to
|eta| = 4.7 allowing tagging of forward jets and measurement of missing
transverse energy.
Collaborators
CERN; 148 institutions in 31 countries worldwide
Contact
CERN
cms.outreach@cern.ch
http://cmsinfo.cern.ch/Welcome.html