Abstract
The reconstruction and identification of electrons and photons will be one of the key issues at the start-up of data-taking with ATLAS at the LHC, in 2009. In this paper, the issues related to energy and position reconstruction, particle identification and background rejection will be briefly reviewed.
Highlights
Calorimeter and TrackerInner Detector constituted of 3 sub detector: Pixel: (3 layers) SCT: SemiConductor Tracker (8 layers) TRT: Transition Radiation Tracker (straw tube, ~36 hits for track )
Accordion geometry allow for a full Φ coverage 3 longitudinal compartments, plus the Presampler ~170k channel Each channel calibrated to the EM scale with the electronic calibration system
Inner Detector constituted of 3 sub detector:
Summary
Inner Detector constituted of 3 sub detector: Pixel: (3 layers) SCT: SemiConductor Tracker (8 layers) TRT: Transition Radiation Tracker (straw tube, ~36 hits for track )
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