The CMS Muon Spectrometer

The Compact Muon Solenoid (CMS) is one of the two multi-purpose detectors foreseen for the Large Hadron Collider (LHC) being built at the European Organization for Nuclear Research (CERN). The CMS detector consists of several sub-detectors measuring energy, momentum, and charge of particles generated in collisions of proton beams with a centre of mass energy of up to 14 TeV. This paper gives a brief overview of the three different technologies used for the CMS muon spectrometer. The basic working principles, the current status (June 2005) of production and commissioning, and some results from tests are presented.