Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC

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dc.contributor University of Helsinki, Department of Physics en
dc.contributor University of Helsinki, Department of Physics en
dc.contributor University of Helsinki, Department of Physics en
dc.contributor University of Helsinki, Department of Physics en
dc.contributor University of Helsinki, Department of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Lappeenranta University of Technology en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor.author The CMS collaboration
dc.contributor.author Sirunyan, A. M.
dc.contributor.author Tumasyan, A.
dc.contributor.author Eerola, P.
dc.contributor.author Forthomme, Laurent
dc.contributor.author Kirschenmann, H.
dc.contributor.author Österberg, K.
dc.contributor.author Voutilainen, M.
dc.contributor.author Brücken, Erik
dc.contributor.author Garcia, F.
dc.contributor.author Havukainen, J.
dc.contributor.author Karimäki, V.
dc.contributor.author Kim, Minsuk
dc.contributor.author Kinnunen, R.
dc.contributor.author Lampén, T.
dc.contributor.author Lassila-Perini, K.
dc.contributor.author Lehti, S.
dc.contributor.author Lindén, T.
dc.contributor.author Luukka, P.
dc.contributor.author Siikonen, H.
dc.contributor.author Tuominen, E.
dc.contributor.author Tuominiemi, J.
dc.contributor.author Tuuva, T.
dc.date.accessioned 2021-08-26T22:09:07Z
dc.date.available 2021-08-26T22:09:07Z
dc.date.issued 2021-05
dc.identifier.citation The CMS Collaboration , Sirunyan , A M , Tumasyan , A , Eerola , P , Forthomme , L , Kirschenmann , H , Österberg , K , Voutilainen , M , Brücken , E , Garcia , F , Havukainen , J , Karimäki , V , Kim , M , Kinnunen , R , Lampén , T , Lassila-Perini , K , Lehti , S , Lindén , T , Luukka , P , Siikonen , H , Tuominen , E , Tuominiemi , J & Tuuva , T 2021 , ' Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC ' , Journal of Instrumentation , vol. 16 , no. 5 , 05014 . https://doi.org/10.1088/1748-0221/16/05/P05014 en
dc.identifier.issn 1748-0221
dc.identifier.other PURE: 167909038
dc.identifier.other PURE UUID: 82679b30-e38f-4f42-bf1e-bd35bd38d179
dc.identifier.other WOS: 000677883500002
dc.identifier.other Scopus: 85107343515
dc.identifier.other ORCID: /0000-0002-7073-7767/work/99031206
dc.identifier.other ORCID: /0000-0003-4807-0414/work/99031581
dc.identifier.other ORCID: /0000-0002-5200-6477/work/99031907
dc.identifier.other ORCID: /0000-0003-2039-5874/work/99032681
dc.identifier.other ORCID: /0000-0002-4023-7964/work/99032860
dc.identifier.other ORCID: /0000-0003-0392-8691/work/99033012
dc.identifier.other ORCID: /0000-0001-7369-2536/work/99033018
dc.identifier.other ORCID: /0000-0003-2898-6900/work/99033022
dc.identifier.uri http://hdl.handle.net/10138/333704
dc.description.abstract The performance is presented of the reconstruction and identification algorithms for electrons and photons with the CMS experiment at the LHC. The reported results are based on proton-proton collision data collected at a center-of-mass energy of 13 TeV and recorded in 2016-2018, corresponding to an integrated luminosity of 136 fb(-1). Results obtained from lead-lead collision data collected at root S-NN = 5.02 TeV are also presented. Innovative techniques are used to reconstruct the electron and photon signals in the detector and to optimize the energy resolution. Events with electrons and photons in the final state are used to measure the energy resolution and energy scale uncertainty in the recorded events. The measured energy resolution for electrons produced in Z boson decays in proton-proton collision data ranges from 2 to 5%, depending on electron pseudorapidity and energy loss through bremsstrahlung in the detector material. The energy scale in the same range of energies is measured with an uncertainty smaller than 0.1 (0.3)% in the barrel (endcap) region in proton-proton collisions and better than 1(3)% in the barrel (endcap) region in heavy ion collisions. The timing resolution for electrons from Z boson decays with the full 2016-2018 proton-proton collision data set is measured to be 200 ps. en
dc.format.extent 82
dc.language.iso eng
dc.relation.ispartof Journal of Instrumentation
dc.rights en
dc.subject 114 Physical sciences en
dc.subject Large detector systems for particle and astroparticle physics en
dc.subject Particle identification methods en
dc.subject QUARK-GLUON PLASMA en
dc.subject PERSPECTIVE en
dc.title Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC en
dc.type Article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.1088/1748-0221/16/05/P05014
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/publishedVersion
dc.contributor.pbl
dc.contributor.pbl

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