Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC
- Yerevan Phys. Inst.
- Vienna, OAW
- Vienna, OAW; TU Vienna
- Minsk, Inst. Nucl. Problems
- Antwerp U.
- Antwerp U.; Brussels U.
- Vrije U., Brussels
- Brussels U.
- Gent U.
- Gent U.; IRFU, Saclay
- Louvain U.
- Rio de Janeiro, CBPF
- Rio de Janeiro State U.
- Rio de Janeiro State U.; U. Campinas
- Rio de Janeiro State U.; Rio Grande do Sul U.
- Rio de Janeiro State U.; Pelotas U.
- Sao Paulo, IFT
- Sao Paulo, IFT; ABC Federal U.
- Sofiya, Inst. Nucl. Res.
- Sofiya U.
- BeiHang U.
- BeiHang U.; Brussels U.
- Tsinghua U., Beijing
- Tsinghua U., Beijing; Iowa U.
- Beijing, Inst. High Energy Phys.
- Beijing, Inst. High Energy Phys.; Beijing, GUCAS
- Peking U.
- SYSU, Guangzhou
- Fudan U.; Brussels U.
- Zhejiang U.
- Andes U., Bogota
- Antioquia U.
- Split Tech. U.
- Split U.
- Boskovic Inst., Zagreb
- Boskovic Inst., Zagreb; Moscow, ITEP
- Cyprus U.
- Charles U.; Dubna, JINR
- Charles U.
- Quito, Escuela Politecnica Natl.
- San Francisco de Quito U.
- Cairo, Acad. Sci. Res. Tech.; Cairo U.
- Cairo, Acad. Sci. Res. Tech.; Helwan U.; Zewail City Sci. Technol., Giza
- Cairo, Acad. Sci. Res. Tech.; British U. in Egypt; Suez Canal U.
- Fayoum U.
- NICPB, Tallinn
- Helsinki U.
- Helsinki Inst. of Phys.
- Lappeenranta U. Tech.
- IRFU, Saclay
- IRFU, Saclay; Purdue U.
- Ecole Polytechnique
- Strasbourg, IPHC; Haute Alsace U.
- Strasbourg, IPHC
- Lyon, IPN
- GTU, Tbilisi; Dubna, JINR
- Aachen, Tech. Hochsch.
- Aachen, Tech. Hochsch.; Erzincan U.
- Aachen, Tech. Hochsch.; CERN
- DESY
- DESY; Aachen, Tech. Hochsch.
- DESY; Hamburg U.
- DESY; Isfahan Tech. U.
- DESY; Brandenburg Tech. U.
- Hamburg U.
- KIT, Karlsruhe, EKP
- KIT, Karlsruhe, EKP; CERN
- KIT, Karlsruhe, EKP; Moscow State U.
- Democritos Nucl. Res. Ctr.
- Athens U.
- Natl. Tech. U., Athens
- Ioannina U.
- Eotvos U.; U. Debrecen, Inst. Phys.
- Eotvos U.
- Eotvos U.; EKU KRC, Gyongyos
- Budapest, RMKI
- Budapest, RMKI; Debrecen, Inst. Nucl. Res.
- Budapest, RMKI; Eotvos U.
- Debrecen, Inst. Nucl. Res.
- Debrecen, Inst. Nucl. Res.; U. Debrecen, Inst. Phys.
- U. Debrecen, Inst. Phys.
- EKU KRC, Gyongyos; Budapest, RMKI
- EKU KRC, Gyongyos
- Bangalore, Indian Inst. Sci.
- Bhubaneswar, NISER; Indian Inst. Tech., Bhubaneswar
- Bhubaneswar, NISER
- Bhubaneswar, NISER; Bhubaneswar, Inst. Phys.
- Panjab U.
- Delhi U.
- Saha Inst.
- Saha Inst.; Visva Bharati U.
- Indian Inst. Tech., Madras
- Bhabha Atomic Res. Ctr.
- TIFR, Mumbai, DHEP
- IISER, Pune
- Isfahan Tech. U.; DESY
- Isfahan Tech. U.; Sharif U. of Tech.
- IPM, Tehran
- University Coll., Dublin
- INFN, Bari; Bari U.
- INFN, Bari
- INFN, Bari; Bari Polytechnic
- INFN, Bologna
- INFN, Bologna; Bologna U.
- INFN, Catania; Catania U.
- INFN, Catania
- INFN, Florence
- INFN, Florence; Florence U.
- Frascati
- INFN, Genoa; U. Genoa
- INFN, Genoa
- INFN, Milan Bicocca
- INFN, Milan Bicocca; Milan Bicocca U.
- INFN, Milan Bicocca; Milan Bicocca U.; CERN
- INFN, Naples
- INFN, Naples; Basilicata U., Potenza
- INFN, Naples; Naples U.
- INFN, Naples; Guglielmo Marconi U.; CERN
- INFN, Naples; CERN
- INFN, Padua
- INFN, Padua; Padua U.
- INFN, Pavia; Pavia U.
- INFN, Pavia
- INFN, Perugia; Perugia U.
- INFN, Perugia
- INFN, Pisa
- INFN, Pisa; Pisa, Scuola Normale Superiore
- INFN, Pisa; Pisa U.
- INFN, Pisa; Siena U.
- INFN, Rome
- INFN, Rome; Rome U.
- INFN, Turin; Turin U.
- INFN, Turin; Piemonte Orientale U., Novara
- INFN, Turin
- INFN, Trieste
- INFN, Trieste; Trieste U.
- CHEP, Taegu
- Chonnam Natl. U.
- Hanyang U.
- Korea U.
- Kyung Hee U.
- Sejong U.
- Seoul Natl. U.
- Seoul U.
- Yonsei U.
- Sungkyunkwan U.
- AUM, Kuwait
- Riga Tech. U.
- Vilnius U.
- Malaya U.
- Sonora U.
- CINVESTAV, IPN
- CINVESTAV, IPN; Conacyt, Mexico
- Iberoamericana U.
- Puebla U., Inst. Fis.
- San Luis Potosi U.
- Montenegro U.; IRFU, Saclay
- Montenegro U.
- Auckland U.
- Canterbury U.
- Quaid-i-Azam U.
- AGH-UST, Cracow
- NCBJ, Swierk
- Warsaw U.
- LIP, Lisbon
- Dubna, JINR
- Dubna, JINR; Moscow Phys. Eng. Inst.
- Dubna, JINR; Tashkent, IYF
- St. Petersburg, INP
- St. Petersburg, INP; St. Petersburg Polytechnic Inst.
- St. Petersburg, INP; Florida U.
- Moscow, INR
- Moscow, ITEP
- Moscow, ITEP; Imperial Coll., London
- Moscow, MIPT
- Moscow Phys. Eng. Inst.
- Moscow Phys. Eng. Inst.; Lebedev Inst.
- Lebedev Inst.
- Moscow State U.
- Moscow State U.; Caltech
- Novosibirsk State U.; Novosibirsk, IYF
- Serpukhov, IHEP
- Tomsk Polytechnic U.
- Tomsk State U.
- VINCA Inst. Nucl. Sci., Belgrade; Belgrade U.
- VINCA Inst. Nucl. Sci., Belgrade
- Madrid, CIEMAT
- Madrid, Autonoma U.
- Oviedo U.
- Cantabria Inst. of Phys.
- Colombo U.
- Ruhuna U.
- CERN
- CERN; INFN, Pavia
- CERN; Athens U.
- PSI, Villigen; Zurich U.
- PSI, Villigen
- Zurich, ETH
- Zurich U.; Stefan Meyer Inst. Subatomare Phys.
- Zurich U.
- Taiwan, Natl. Central U.; Annecy, LAPP
- Taiwan, Natl. Central U.
- Taiwan, Natl. Central U.; Visva Bharati U.
- Taiwan, Natl. Taiwan U.
- Chulalongkorn U.
- Cukurova U.
- Cukurova U.; Tsinghua U., Beijing
- Cukurova U.; Beykent U.
- Cukurova U.; Istanbul Aydin U.
- Cukurova U.; Mersin U.
- Cukurova U.; Piri Reis U., Istanbul
- Cukurova U.; Adiyaman U.
- Middle East Tech. U., Ankara; Ozyegin U.
- Middle East Tech. U., Ankara; Izmir Inst. Tech.
- Middle East Tech. U., Ankara; Necmettin Erbakan U., Konya
- Middle East Tech. U., Ankara
- Bogazici U.
- Bogazici U.; Marmara U.
- Bogazici U.; Kafkas U.
- Bogazici U.; Istanbul Bilgi U.
- Istanbul, Tech. U.
- Istanbul, Tech. U.; Hacettepe U.
- Istanbul U.
- Istanbul U.; Adiyaman U.
- Inst. Scintill. Mat., Kharkiv
- Kharkov, KIPT
- Bristol U.
- Bristol U.; Vrije U., Brussels
- Rutherford
- Rutherford; Southampton U.
- Imperial Coll., London
- Imperial Coll., London; Monash U.
- Imperial Coll., London; CERN
- Brunel U.
- Baylor U.
- Catholic U. America
- Alabama U.
- Boston U.
- Brown U.
- Brown U.; Aachen, Tech. Hochsch.
- Brown U.; Bethel Coll.
- Brown U.; Karamanoglu Mehmetbey U., Karaman
- UC, Davis
- UCLA
- UC, Riverside
- UC, San Diego
- UC, Santa Barbara
- Caltech
- Carnegie Mellon U.
- Colorado U.
- Cornell U.
- Fermilab
- Fermilab; Caltech
- Florida U.
- Florida State U.
- Florida Inst. Tech.
- Florida Inst. Tech.; Ain Shams U., Cairo
- Illinois U., Chicago
- Iowa U.
- Iowa U.; Bingöl U.
- Iowa U.; GTU, Tbilisi
- Iowa U.; Sinop U.
- Iowa U.; Mimar Sinan U.
- Johns Hopkins U.
- Kansas U.
- Kansas State U.
- LLNL, Livermore
- Maryland U.
- MIT
- Minnesota U.
- Mississippi U.
- Nebraska U.
- SUNY, Buffalo
- Northeastern U.
- Northwestern U.
- Notre Dame U.
- Notre Dame U.; Dubna, JINR
- Ohio State U.
- Princeton U.
- Puerto Rico U., Mayaguez
- Purdue U.
- Purdue U., Calumet
- Rice U.
- Rochester U.
- Rutgers U., Piscataway
- Rutgers U., Piscataway; Brandenburg Tech. U.
- Tennessee U.
- Texas A-M; Texas A&M U. Qatar, Doha
- Texas A-M
- Texas A-M; CHEP, Taegu
- Texas Tech.
- Vanderbilt U.
- Virginia U.
- Wayne State U.
- Wisconsin U., Madison
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.
- Research Organization:
- ABC Federal U.; AGH-UST, Cracow; AUM, Kuwait; Aachen, Tech. Hochsch.; Adiyaman U.; Ain Shams U., Cairo; Alabama U.; Andes U., Bogota; Annecy, LAPP; Antioquia U.; Antwerp U.; Athens U.; Auckland U.; Bangalore, Indian Inst. Sci.; Bari Polytechnic; Bari U.; Basilicata U., Potenza; Baylor U.; BeiHang U.; Beijing, GUCAS; Beijing, Inst. High Energy Phys.; Belgrade U.; Bethel Coll.; Beykent U.; Bhabha Atomic Res. Ctr.; Bhubaneswar, Inst. Phys.; Bhubaneswar, NISER; Bingöl U.; Bogazici U.; Bologna U.; Boskovic Inst., Zagreb; Boston U.; Brandenburg Tech. U.; Bristol U.; British U. in Egypt; Brown U.; Brunel U.; Brussels U.; Budapest, RMKI; CERN; CHEP, Taegu; CINVESTAV, IPN; Cairo U.; Cairo, Acad. Sci. Res. Tech.; Caltech; Cantabria Inst. of Phys.; Canterbury U.; Carnegie Mellon U.; Catania U.; Catholic U. America; Charles U.; Chonnam Natl. U.; Chulalongkorn U.; Colombo U.; Colorado U.; Conacyt, Mexico; Cornell U.; Cukurova U.; Cyprus U.; DESY; Debrecen, Inst. Nucl. Res.; Delhi U.; Democritos Nucl. Res. Ctr.; Dubna, JINR; EKU KRC, Gyongyos; Ecole Polytechnique; Eotvos U.; Erzincan U.; Fayoum U.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Florence U.; Florida Inst. Tech.; Florida State U.; Florida U.; Frascati; Fudan U.; GTU, Tbilisi; Gent U.; Guglielmo Marconi U.; Hacettepe U.; Hamburg U.; Hanyang U.; Haute Alsace U.; Helsinki Inst. of Phys.; Helsinki U.; Helwan U.; IISER, Pune; INFN, Bari; INFN, Bologna; INFN, Catania; INFN, Florence; INFN, Genoa; INFN, Milan Bicocca; INFN, Naples; INFN, Padua; INFN, Pavia; INFN, Perugia; INFN, Pisa; INFN, Rome; INFN, Trieste; INFN, Turin; IPM, Tehran; IRFU, Saclay; Iberoamericana U.; Illinois U., Chicago; Imperial Coll., London; Indian Inst. Tech., Bhubaneswar; Indian Inst. Tech., Madras; Inst. Scintill. Mat., Kharkiv; Ioannina U.; Iowa U.; Isfahan Tech. U.; Istanbul Aydin U.; Istanbul Bilgi U.; Istanbul U.; Istanbul, Tech. U.; Izmir Inst. Tech.; Johns Hopkins U.; KIT, Karlsruhe, EKP; Kafkas U.; Kansas State U.; Kansas U.; Karamanoglu Mehmetbey U., Karaman; Kharkov, KIPT; Korea U.; Kyung Hee U.; LIP, Lisbon; Lappeenranta U. Tech.; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lebedev Inst.; Louvain U.; Lyon, IPN; MIT; Madrid, Autonoma U.; Madrid, CIEMAT; Malaya U.; Marmara U.; Maryland U.; Mersin U.; Middle East Tech. U., Ankara; Milan Bicocca U.; Mimar Sinan U.; Minnesota U.; Minsk, Inst. Nucl. Problems; Mississippi U.; Monash U.; Montenegro U.; Moscow Phys. Eng. Inst.; Moscow State U.; Moscow, INR; Moscow, ITEP; Moscow, MIPT; NCBJ, Swierk; NICPB, Tallinn; Naples U.; Natl. Tech. U., Athens; Nebraska U.; Necmettin Erbakan U., Konya; Northeastern U.; Northwestern U.; Notre Dame U.; Novosibirsk State U.; Novosibirsk, IYF; Ohio State U.; Oviedo U.; Ozyegin U.; PSI, Villigen; Padua U.; Panjab U.; Pavia U.; Peking U.; Pelotas U.; Perugia U.; Piemonte Orientale U., Novara; Piri Reis U., Istanbul; Pisa U.; Pisa, Scuola Normale Superiore; Princeton U.; Puebla U., Inst. Fis.; Puerto Rico U., Mayaguez; Purdue U.; Purdue U., Calumet; Quaid-i-Azam U.; Quito, Escuela Politecnica Natl.; Rice U.; Riga Tech. U.; Rio Grande do Sul U.; Rio de Janeiro State U.; Rio de Janeiro, CBPF; Rochester U.; Rome U.; Ruhuna U.; Rutgers U., Piscataway; Rutherford; SUNY, Buffalo; SYSU, Guangzhou; Saha Inst.; San Francisco de Quito U.; San Luis Potosi U.; Sao Paulo, IFT; Sejong U.; Seoul Natl. U.; Seoul U.; Serpukhov, IHEP; Sharif U. of Tech.; Siena U.; Sinop U.; Sofiya U.; Sofiya, Inst. Nucl. Res.; Sonora U.; Southampton U.; Split Tech. U.; Split U.; St. Petersburg Polytechnic Inst.; St. Petersburg, INP; Stefan Meyer Inst. Subatomare Phys.; Strasbourg, IPHC; Suez Canal U.; Sungkyunkwan U.; TIFR, Mumbai, DHEP; TU Vienna; Taiwan, Natl. Central U.; Taiwan, Natl. Taiwan U.; Tashkent, IYF; Tennessee U.; Texas A&M U. Qatar, Doha; Texas A-M; Texas Tech.; Tomsk Polytechnic U.; Tomsk State U.; Trieste U.; Tsinghua U., Beijing; Turin U.; U. Campinas; U. Debrecen, Inst. Phys.; U. Genoa; UC, Davis; UC, Riverside; UC, San Diego; UC, Santa Barbara; UCLA; Univ. of Rochester, NY (United States); University Coll., Dublin; VINCA Inst. Nucl. Sci., Belgrade; Vanderbilt U.; Vienna, OAW; Vilnius U.; Virginia U.; Visva Bharati U.; Vrije U., Brussels; Warsaw U.; Wayne State U.; Wisconsin U., Madison; Yerevan Phys. Inst.; Yonsei U.; Zewail City Sci. Technol., Giza; Zhejiang U.; Zurich U.; Zurich, ETH
- Sponsoring Organization:
- US Department of Energy; USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CMS Collaboration
- Grant/Contract Number:
- AC02-07CH11359; SC0008475
- OSTI ID:
- 1774277
- Report Number(s):
- CERN-EP-2020-219; CMS-EGM-17-001; FERMILAB-PUB-21-172-CMS; oai:inspirehep.net:1836363; arXiv:2012.06888
- Journal Information:
- JINST, Journal Name: JINST Journal Issue: 05 Vol. 16
- Country of Publication:
- United States
- Language:
- English
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