Electron and photon performance measurements with the ATLAS detector using the 2015-2017 LHC proton-proton collision data

Summary, in English

This paper describes the reconstruction of electrons and photons with the ATLAS detector, employed for measurements and searches exploiting the complete LHC Run 2 dataset. An improved energy clustering algorithm is introduced, and its implications for the measurement and identification of prompt electrons and photons are discussed in detail. Corrections and calibrations that affect performance, including energy calibration, identification and isolation efficiencies, and the measurement of the charge of reconstructed electron candidates are determined using up to 81 fb-1 of proton-proton collision data collected at √s = 13 TeV between 2015 and 2017. © 2019 CERN for the benefit of the ATLAS collaboration. Published by IOP Publishing Ltd on behalf of Sissa Medialab.

• Author: Aad G.; T. Åkesson; S. Bocchetta; L. Bryngemark; E. Corrigan; C. Doglioni; K. Gregersen; E. Hansen; V. Hedberg; G. Jarlskog; C. Kalderon; E. Kellermann; B. Konya; E. Lytken; K. Mankinen; C. Marcon; J. Mjörnmark; G. Mullier; R. Poettgen; T. Poulsen; E. Skorda; O. Smirnova; Zwalinski L.
• Department/s: Particle and nuclear physics; eSSENCE: The e-Science Collaboration
• Publishing year: 2019
• Language: English
• Publication/Series: Journal of Instrumentation
• Volume: 14
• Issue: 12
• Links: http://dx.doi.org/10.1088/1748-0221/14/12/P12006
• Document type: Journal article
• Publisher: IOP Publishing
• Topic: Subatomic Physics
• Keywords: Particle identification methods; Performance of high energy physics detectors; Clustering algorithms; Photons; Tellurium compounds; ATLAS detectors; Energy calibration; High energy physics detector; Isolation efficiencies; Particle Identification Method; Performance measurements; Proton proton collisions; Electrons
• Status: Published
• ISBN/ISSN/Other: ISSN: 1748-0221