A Study on Selection Performance for High Energy Photons in CMS towards the 13 TeV LHC Run

The 13 TeV run for the LHC is expected to occur in the beginning of 2015 with a higher number of interactions per bunch crossing and a reduced bunch crossing time spacing. These harsher conditions are expected to affect the photon selection performance especially for high energy photons involved in BSM processes like the Graviton decay. This work summarizes a preliminary study of this performance using 13 TeV Monte Carlo Randall Sundrum Graviton samples with different pileup scenarios corresponding to the coming 13 TeV run conditions. Especially the efficiency for the selection and the energy resolution are investigated.