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

descriptionPublicationkeyboard_double_arrow_right Article , Research , Preprint , Journal , Other literature type 01 May 2021Embargo end date: 01 Jan 2021 Turkey, France, United States, France, Spain, France, Germany, Switzerland, Turkey, Turkey, Russian Federation, Turkey, Greece, Belgium, Spain, France, Belarus, Spain, Spain, Turkey, Hungary, Croatia, Germany, Switzerland, Turkey, Belgium, Brazil, United Kingdom, Turkey, Spain, Russian Federation, Turkey, Belgium, France, Belarus, Turkey, United Kingdom, Germany, Belgium, United Kingdom, Croatia, Italy, Germany, Turkey, Belgium, Turkey Publisher:IOP PublishingJournal:Journal of Instrumentation, volume 16, page P05014 (eissn: 1748-0221,

Authors: Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Bergauer, T.; and; Dragicevic, M.; Del Valle, A.; +193 Authors

Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Bergauer, T.; and; Dragicevic, M.; Del Valle, A.; Escalante; Fruehwirth, R.; Jeitler, M.; Krammer, N.; Lechner, L.; Liko, D.; Mikulec, I; and Pitters, F.M.; Rad, N.; Schieck, J.; Schoefbeck, R.; Spanring, M.; Templ, S.; Waltenberger, W.; Wulz, C-E and; Zarucki, M.; Chekhovsky, V; Litomin, A.; Makarenko, V and; Gonzalez, J.; Suarez; Darwish, M.R.; De Wolf, E.A.; Janssen,; X.; Kello, T.; Lelek, A.; Pieters, M.; Sfar, H.; Rejeb and; Van Haevermaet, H.; Van Mechelen, P.; Van Putte, S.; Van; Remortel, N.; Blekman, F.; Bols, E.S.; Chhibra, S.S.; De; Clercq, J.; Lontkovskyi, D.; Lowette, S.; Marchesini, I and; Moortgat, S.; Morton, A.; Muller, D.; Python, Q.; Tavernier,; S.; Van Doninck, W.; Van Mulders, P.; Beghin, D.; Bilin, B.; and Clerbaux, B.; De Lentdecker, G.; Dorney, B.; Favart, L.; Grebenyuk, A.; Kalsi, A.K.; Makarenko, I; Moureaux, L.; Petre, L.; Popov, A.; Postiau, N.; Starling, E.; Thomas, L.; and Vander Velde, C.; Vanlaer, P.; Vannerom, D.; Wezenbeek, L.; and Cornelis, T.; Dobur, D.; Gruchala, M.; Khvastunov, I and; Mestdach, G.; Niedziela, M.; Roskas, C.; Skovpen, K.; Tytgat, M.; Verbeke, W.; Vermassen, B.; Vit, M.; Bruno, G.; and Bury, F.; Caputo, C.; David, P.; Delaere, C.; Delcourt,; M.; Donertas, I.S.; Giammanco, A.; Lemaitre, V; Mondal, K.; and Prisciandaro, J.; Taliercio, A.; Teklishyn, M.; Vischia, P.; and Wertz, S.; Wuyckens, S.; Alves, G.A.; Hensel, C.; Moraes, A.; Junior, W.L.; Alda; Das Chagas, E.; Belchior Batista; and Malbouisson, H.; Brandao; Carvalho, W.; Chinellato, J.; Coelho, E.; Da Costa, E.M.; Da Silveira, G.G.; Damiao, D.; Jesus; De Souza, S.; Fonseca; Martins, J.; Figueiredo, D.; Matos; and Jaime, M.; Medina; Herrera, C.; Mora; Mundim, L.; Nogima, H.; and Teles, P.; Rebello; Rosas, L.J.; Sanchez; Santoro, A.; Do; Amaral, S.M.; Silva; Sznajder, A.; Thiel, M.; De Araujo, F.; Torres Da Silva; Pereira, A.; Vilela; Bernardes, C.A.; Calligaris, L.; Tomei, T.R.; Fernandez Perez; Gregores, E.M.; Lemos, D.S.; Mercadante, P.G.; Novaes, S.F.; Padula, Sandra; Aleksandrov, A.; Antchev, G.; Atanasov, I; Hadjiiska, R.; and Iaydjiev, P.; Misheva, M.; Rodozov, M.; Shopova, M.; Sultanov, G.; Dimitrov, A.; Ivanov, T.; Litov, L.; Pavlov,; B.; Petkov, P.; Petrov, A.; Cheng, T.; Fang, W.; Guo, Q.; and Mittal, M.; Wang, H.; Yuan, L.; Ahmad, M.; Bauer, G.; Hu, Z.; Wang, Y.; Yi, K.; Chapon, E.; Chen, G.M.; Chen,; H.S.; Chen, M.; Javaid, T.; Kapoor, A.; Leggat, D.; Liao, H.; Liu, Z-A; Sharma, R.; Spiezia, A.; Tao, J.; Thomas-wilsker, J.; Wang, J.; Zhang, H.; Zhang, S.;

doi: 10.1088/1748-0221/16/05/p05014 , 10.3204/pubdb-2021-01834 , 10.5445/ir/1000136873 , 10.18154/rwth-2021-08433 , 10.3204/pubdb-2021-02949 , 10.3929/ethz-b-000490223 , 10.48550/arxiv.2012.06888 , 10.18154/rwth-2021-08466

arXiv: 2012.06888 , http://arxiv.org/abs/2012.06888

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

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Abstract

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 √(sNN)=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.

Countries

Turkey, France, United States, France, Spain, France, Germany, Switzerland, Turkey, Turkey, Russian Federation, Turkey, Greece, Belgium, Spain, France, Belarus, Spain, Spain, Turkey, Hungary, Croatia, Germany, Switzerland, Turkey, Belgium, Brazil, United Kingdom, Turkey, Spain, Russian Federation, Turkey, Belgium, France, Belarus, Turkey, United Kingdom, Germany, Belgium, United Kingdom, Croatia, Italy, Germany, Turkey, Belgium, Turkey

Related Organizations

University of Malaya
Malaysia
Leprince-Ringuet Laboratory
France
Assiut University
Egypt
The University of Texas System
United States
Universiti Malaysia Terengganu
Malaysia

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Keywords

Technology, Physics - Instrumentation and Detectors, heavy ion: scattering, 13000 GeV-cms, particle identification [electron], electron: rapidity, Particle, perspective, large detector systems for particle and astroparticle physics, 09 Engineering, photon: particle identification, QUARK-GLUON PLASMA, High Energy Physics - Experiment, rapidity dependence, electron: pair production, High Energy Physics - Experiment (hep-ex), Particle identification methods, Particle Identification Methods, energy resolution: measured, scattering [p p], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PERSPECTIVE, Instruments & Instrumentation, physics.ins-det, info:eu-repo/classification/ddc/610, 02 Physical Sciences, CMS, Physics, Settore FIS/01 - Fisica Sperimentale, measured [energy resolution], Instrumentation and Detectors (physics.ins-det), 001, Nuclear & Particles Physics, CERN LHC Coll, Large detector systems for particle and astroparticle physics; Particle identification methods;, High energy physics ; Experimental particle physics ; LHC ; CMS ; Radiation-hard detectors ; Si microstrip and pad detectors ; Radiation damage to detector materials (solid state) ; Particle tracking detectors (Solid-state detectors) ; radiation: damage ; CMS: upgrade ; tracking detector ; semiconductor detector: design ; semiconductor detector: microstrip ; performance ; Hadron-Hadron scattering (experiments) ; Top physics ; p p: scattering ; p p: colliding beams ; top: single production, Large Detector Systems For Particle and Astroparticle Physics, Quark-Gluon Plasma, PARTICLE PHYSICS, rapidity [electron], colliding beams [p p], ddc:620, 570, p p: scattering, CERN Lab, quark-gluon plasma, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Large detector systems for particle and astroparticle physics; Particle identification methods, energy loss, FOS: Physical sciences, 610, 530, bremsstrahlung, particle identification: performance, scattering [heavy ion], 5020 GeV-cms/nucleon, pair production [electron], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика, Astrophysique, Engineering & allied operations, lead, Science & Technology, electron: particle identification, PARTICLE PHYSICS;LARGE HADRON COLLIDER;CMS, hep-ex, Large detector systems for particle and astroparticle physics, particle identification [photon], Física, resolution, leptonic decay [Z0], particle identification methods, LARGE HADRON COLLIDER, 541, 620, Physics and Astronomy, [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], performance [particle identification], Large detector systems for particle and astroparticle physic, Z0: leptonic decay, identification methods, p p: colliding beams, info:eu-repo/classification/ddc/620, experimental results

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