CERN Accelerating science

ATLAS Note
Report number	ATL-PHYS-PROC-2012-044
Title	Identification and reconstruction of electrons and photons with the ATLAS detector at the LHC.
Author(s)	Gallo, V (Bern U., LHEP)
Corporate Author(s)	The ATLAS collaboration
Publication	2012
Imprint	21 Feb 2012
Number of pages	11
In:	LHC on the March, Protvino, Russia, 16 - 18 Nov 2011
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	electrons ; photons ; reconstruction ; identification ; calibration ; EGAMMA
Abstract	Measurement of electron and photon identification and reconstruction performances with the ATLAS detector at the Large Hadron Collider (LHC) are reported. The electron and photon reconstruction and identification have been studied using several processes with electrons and photons at the final state such as $Z$, $W$ and $J/Psi$ decays and diphoton production. The data have been collected with the ATLAS detector and produces by proton-proton collisions at the centre-of-mass energy of 7 TeV. For most of the measurements reported in the following the 2010 data period corresponding to an integrate luminosity of $40 pb^{-1}$ has been used. A larger amount of data corresponding to an integrated luminosity of around $1 fb^{-1}$ has been used to estimate the pointing resolution of the electromagnetic calorimeter.
Copyright/License	Preprint: (License: CC-BY-4.0)

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