Performance and Operation of the CMS Electromagnetic Calorimeter

Abstract

The operation and general performance of the CMS electromagnetic calorimeter using cosmic-ray muons are described. These muons were recorded after the closure of the CMS detector in late 2008. The calorimeter is made of lead tungstate crystals and the overall status of the 75848 channels corresponding to the barrel and endcap detectors is reported. The stability of crucial operational parameters, such as high voltage, temperature and electronic noise, is summarised and the performance of the light monitoring system is presented.

References in corpus (5)

• Commissioning of the CMS Experiment and the Cosmic Run at Four Tesla
• Time Reconstruction and Performance of the CMS Electromagnetic Calorimeter
• Performance of the CMS Level-1 Trigger during Commissioning with Cosmic Ray Muons
• Measurement of the Muon Stopping Power in Lead Tungstate
• CMS Data Processing Workflows during an Extended Cosmic Ray Run

Cited by in corpus (15)

• Measurement of the properties of a Higgs boson in the four-lepton final state
• Energy calibration and resolution of the CMS electromagnetic calorimeter in pp collisions at sqrt(s) = 7 TeV
• Commissioning of the CMS Experiment and the Cosmic Run at Four Tesla
• Measurement of the inclusive production cross sections for forward jets and for dijet events with one forward and one central jet in pp collisions at sqrt(s) = 7 TeV
• Performance of the CMS Level-1 Trigger during Commissioning with Cosmic Ray Muons
• Measurement of four-jet production in proton-proton collisions at sqrt(s) = 7 TeV
• A visualization of the damage in Lead Tungstate calorimeter crystals after exposure to high-energy hadrons
• Measurement of the Muon Stopping Power in Lead Tungstate
• CMS Data Processing Workflows during an Extended Cosmic Ray Run
• Results on damage induced by high-energy protons in LYSO calorimeter crystals
• Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions
• Measurement of the Ratio of the 3-jet to 2-jet Cross Sections in pp Collisions at sqrt(s) = 7 TeV
• Array of Cryogenic Calorimeters to Evaluate the Spectral Shape of forbidden $\beta$-decays: the ACCESS project
• Design and Description of the CMS Magnetic System Model
• Measuring the Mass of Dark Matter at the LHC