Speaker
Dr
Federico de Guio
(University of Milano-Bicocca and INFN)
Description
The electromagnetic calorimeter of CMS (ECAL) is a hermetic, fine grained and homogeneous calorimeter containing 75848 lead-tungstate (PbWO4) crystals, completed by a silicon preshower installed in front of the endcaps. The ECAL sensitivity to decay modes with electromagnetic objects in the final state, such as narrow resonances decaying into two photons, is achieved through i ts excellent energy and position resolution. The ECAL performance from 2010-2012 is presented in detail and its role in the hunt for the Higgs boson, through the 2-gamma decay mode, is discussed.
Primary author
Dr
Federico de Guio
(University of Milano-Bicocca and INFN)
