Electron and photon performance measurements with the ATLAS detector using the 2015–2017 LHC proton-proton collision data Aad, G. Aguilar Saavedra, Juan Antonio Atlas Collaboration Particle identification methods Performance of High Energy Physics Detectors 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 root s = 13 TeV between 2015 and 2017. 2020-02-13T10:29:43Z 2020-02-13T10:29:43Z 2019-12-10 info:eu-repo/semantics/article Collaboration, A. T. L. A. S. (2019). Electron and photon performance measurements with the ATLAS detector using the 2015-2017 LHC proton-proton collision data. Journal of Instrumentation, 14. http://hdl.handle.net/10481/59640 10.1088/1748-0221/14/12/P12006 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España IOP Publishing