The upgrade of the CMS ECAL Barrel calorimeter at the HL-LHC for high-precision energy and time measurements
August 02, 2019
The electromagnetic calorimeter (ECAL) of the Compact Muon Solenoid experiment is currently taking data at the Large Hadron Collider (LHC). The High Luminosity phase of the LHC will provide unprecedented instantaneous and integrated luminosity, at the price of very challenging running conditions in terms of radiation level, data rates and number of simultaneous collisions in the same bunch crossing. The upgrade of the barrel part of the CMS ECAL is discussed in this paper. The requirements of the upgraded detector are reviewed and a presentation of test beam results is given.
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