Reconstruction and Identification of Electrons and Photons with the ATLAS Detector

Details Reconstruction and Identification of Electrons and Photons with the ATLAS Detector Reconstruction and Identification of Electrons and Photons with the ATLAS Detector

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apsp.conf..415a&link_type=abstract

ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS. Proceedings of the 11th Conference. Held

Physics

Medical Physics

Atlas, Egamma, Electron, Photon, Electromagnetic Calorimeter

Scientific paper

Electrons and photons will be produced in many physics channels of prime interest at the Large Hadron Collider (LHC). Several channels from new physics, for instance, some decay modes of the Higgs boson into electrons and photons have small cross-sections and suffer from large backgrounds. Therefore powerful and efficient electron and photon reconstruction and identification methods covering a broad energy range are needed at the LHC. This paper describes the overall ATLAS detector performance for the reconstruction and identification of photons and electrons over a wide range of transverse energies, from a few GeV to 5 TeV. The baseline offline performance for efficiencies for electrons and photons from various sources and of rejections against jets is described.

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