Author/Authors :
Roselli، نويسنده , , G. and Abbrescia، نويسنده , , M. and Iaselli، نويسنده , , G. and Marangelli، نويسنده , , B. and Natali، نويسنده , , S. and Nuzzo، نويسنده , , S. and Pugliese، نويسنده , , G. P. Romano، نويسنده , , F. and Trentadue، نويسنده , , R. and Tupputi، نويسنده , , S. Edward Rajan ?، نويسنده , , R.T. and Shinde، نويسنده , , Y. and Colaleo، نويسنده , , A. and Loddo، نويسنده , , F. and Maggi، نويسنده , , M. and Ranieri، نويسنده , , A. and ، نويسنده ,
Abstract :
The CMS muon system is conceived for trigger and muon track reconstruction. The redundancy and robustness of the system are guaranteed by three complementary subsystems: drift tube in the barrel, cathode strip chamber in the end-cap and resistive plate chamber in barrel and end-cap. The installation of muon stations and read-out trigger electronic has been completed in middle 2007. Since than, a remarkable effort has been addressed to the detector commissioning in order to ensure the readiness of the hardware/software chain for the LHC start up operation. At the end of 2007, a test of an entire CMS slice has been performed, involving about 5% of muon stations. Several thousand cosmic muons events have been collected. Performance of the barrel chambers are reported.
Keywords :
Resistive plate chamber , CMS , RPC noise , RPC efficiency
