Electron/Photon Reconstruction Performance with the ATLAS Detector | Zendy

K. Benslama | Zendy

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Electron/Photon Reconstruction Performance with the ATLAS Detector

Author(s) -

K. Benslama

Publication year - 2006

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.2396984

Subject(s) - atlas (anatomy) , detector , physics , photon , electron , atlas detector , computer science , optoelectronics , optics , nuclear physics , large hadron collider , geology , paleontology

The calibration of electromagnetic clusters is one of the key issues of ATLAS (and the LHC) in 2007. The cluster algorithm starting from electronically calibrated calorimeter cells will be described. Local position and local energy variations are corrected for. As a last step, longitudinal weights are applied to correct for energy loss upstream of the calorimeter. Strongly influenced by testbeam studies, the new longitudinal weighting optimizes simultaneously energy resolution and linearity. Methods to derive the final calibration parameters from the physics events have been developed. The electron and photon identification methods and their performance will then be discussed.

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