The CMS electromagnetic calorimeter
نویسنده
چکیده
From 2007 the new CERN proton proton collider will start collisions that could open new perspectives in the fields of high energy particle physics. The CMS experiment at the LHC is in advanced construction phase. In particular new physics could be discovered thanks to the CMS precise electromagnetic calorimeter (ECAL) made of about 75000 scintillating PbWO 4 crystals. A description of the ECAL will be given and then the talk will focus on the recent progress in the detector and on the expected performance. In particular, based on the most recent test-beam results the talk will review the energy and position resolution, the monitoring system and the calibration methods, so crucial to maintain the design resolution. Finally the expected performance on few selected physics channels will be reviewed.
منابع مشابه
Principles of the cutting method proposed for the PbWO4 crystals of the CMS Electromagnetic Calorimeter
A method for cutting the 110’000 PbWO4 crystals of the CMS Electromagnetic Calorimeter is proposed. The machinery, the tooling and the sequence of operation are described. Processing parameters resulting from experimental runs are indicated. A mass production organisation is forecasted. CMS Note 1997/024 01 04 1997 M. Lebeau 2
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