Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton–proton collision data
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Aad, G., Abajyan, T., Abbott, B. et al. Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton–proton collision data. Eur. Phys. J. C 74, 2941 (2014). [https://doi.org/10.1140/epjc/s10052-014-2941-0]
SponsorshipANPCyT; YerPhI, Armenia; Australian Research Council; BMWF, Austria; Austrian Science Fund (FWF); Azerbaijan National Academy of Sciences (ANAS); SSTC, Belarus; National Council for Scientific and Technological Development (CNPq); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); Natural Sciences and Engineering Research Council of Canada; NRC, Canada; Canada Foundation for Innovation; CERN; Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT); Chinese Academy of Sciences; Ministry of Science and Technology, China; National Natural Science Foundation of China; Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias; Ministry of Education, Youth & Sports - Czech Republic Czech Republic Government; DNRF, Denmark; Danish Natural Science Research Council; Lundbeckfonden; EPLANET; European Research Council (ERC); NSRF; European Union (EU); Centre National de la Recherche Scientifique (CNRS); CEA-DSM/IRFU, France; GNSF, Georgia; Federal Ministry of Education & Research (BMBF); German Research Foundation (DFG); HGF, Germany; Max Planck Society; Alexander von Humboldt Foundation; Greek Ministry of Development-GSRT; NSRF, Greece; Israel Science Foundation; MINERVA, Israel; German-Israeli Foundation for Scientific Research and Development; I-CORE, Israel; Benoziyo Center, Israel; Istituto Nazionale di Fisica Nucleare (INFN); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science; CNRST, Morocco; FOM (The Netherlands) Netherlands Government; Netherlands Organization for Scientific Research (NWO) Netherlands Government; BRF, Norway; RCN, Norway; Ministry of Science and Higher Education, Poland; NCN, Poland; GRICES, Portugal; Portuguese Foundation for Science and Technology; MNE/IFA, Romania; MES of Russia; Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; Slovenian Research Agency - Slovenia; MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC, Sweden; Wallenberg Foundation, Sweden; SER, Switzerland; Swiss National Science Foundation (SNSF); Canton of Bern, Switzerland; Canton of Geneva, Switzerland; National Science Council of Taiwan; Ministry of Energy & Natural Resources - Turkey; Science & Technology Facilities Council (STFC); Royal Society of London; Leverhulme Trust; United States Department of Energy (DOE); National Science Foundation (NSF); ICREA
Many of the interesting physics processes to be measured at the LHC have a signature involving one or more isolated electrons. The electron reconstruction and identification efficiencies of the ATLAS detector at the LHC have been evaluated using proton–proton collision data collected in 2011 at s√=7 TeV and corresponding to an integrated luminosity of 4.7 fb−1. Tag-and-probe methods using events with leptonic decays of W and Z bosons and J/ψ mesons are employed to benchmark these performance parameters. The combination of all measurements results in identification efficiencies determined with an accuracy at the few per mil level for electron transverse energy greater than 30 GeV.