Jul 22 – 28, 2010
Palais des Congrès de Paris
Europe/Paris timezone

Electron and Photon reconstruction and identification with the CMS detector in pp collisions at √s = 7 TeV

Jul 22, 2010, 3:20 PM
Salle Maillot

Salle Maillot

Parallel Session Talk 01 - Early Experience and Results from LHC 01 - Early Experience and Results from LHC


Salerno Roberto (LLR-Ecole Polytechnique)


The performance of electron and photon reconstruction and identification has been studied at √s = 7 TeV. Reconstruction and identification variables as well as isolation and photon conversion rejection variables, in the case of electrons, have been compared between data and Monte Carlo for signal and background. Electron and photon identification efficiency, electron fake rate and photon purity have been determined and compared with Monte Carlo predictions. For electrons the momentum resolution as well as charge identification have also been studied. Level 1 Trigger and High Level Trigger efficiencies have been measured.

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