期刊
JOURNAL OF INSTRUMENTATION
卷 16, 期 5, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1748-0221/16/05/P05014
关键词
Large detector systems for particle and astroparticle physics; Particle identification methods
资金
- Austrian Federal Ministry of Education, Science and Research
- Austrian Science Fund
- Belgian Fonds de la Recherche Scientifique
- Fonds voor Wetenschappelijk Onderzoek
- Brazilian Funding Agency: CNPq
- Brazilian Funding Agency: CAPES
- Brazilian Funding Agency (FAPERJ)
- Brazilian Funding Agency (FAPERGS)
- Brazilian Funding Agency (FAPESP)
- Bulgarian Ministry of Education and Science
- CERN
- Chinese Academy of Sciences, Ministry of Science and Technology
- National Natural Science Foundation of China
- Colombian Funding Agency (COLCIENCIAS)
- Croatian Ministry of Science, Education and Sport
- Croatian Science Foundation
- Research and Innovation Foundation, Cyprus
- Secretariat for Higher Education, Science, Technology and Innovation, Ecuador
- Ministry of Education and Research, Estonian Research Council [PRG780, PRG803, PRG445]
- European Regional Development Fund, Estonia
- Academy of Finland
- Finnish Ministry of Education and Culture
- Helsinki Institute of Physics
- Institut National de Physique Nucleaire et de Physique des Particules / CNRS
- Commissariat a l'Energie Atomique et aux Energies Alternatives / CEA, France
- Bundesministerium fur Bildung und Forschung
- Deutsche Forschungsgemeinschaft (DFG) under Germany's Excellence Strategy [EXC 2121, 390833306]
- Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
- General Secretariat for Research and Technology, Greece
- National Research, Development and Innovation Fund, Hungary
- Department of Atomic Energy
- Department of Science and Technology, India
- Institute for Studies in Theoretical Physics and Mathematics, Iran
- Science Foundation, Ireland
- Istituto Nazionale di Fisica Nucleare, Italy
- Ministry of Science, ICT and Future Planning, Republic of Korea
- National Research Foundation (NRF), Republic of Korea
- Ministry of Education and Science of the Republic of Latvia
- Lithuanian Academy of Sciences
- Ministry of Education
- University of Malaya (Malaysia)
- Ministry of Science of Montenegro
- Mexican Funding Agency (BUAP)
- Mexican Funding Agency (CINVESTAV)
- Mexican Funding Agency (CONACYT)
- Mexican Funding Agency (LNS)
- Mexican Funding Agency (SEP)
- Mexican Funding Agency (UASLP-FAI)
- Ministry of Business, Innovation and Employment, New Zealand
- Pakistan Atomic Energy Commission
- Ministry of Science and Higher Education
- National Science Centre, Poland
- Fundacao para a Ciencia e a Tecnologia, Portugal
- JINR, Dubna
- Ministry of Education and Science of the Russian Federation
- Federal Agency of Atomic Energy of the Russian Federation
- Russian Academy of Sciences
- Russian Foundation for Basic Research
- National Research Center Kurchatov Institute
- Ministry of Education, Science and Technological Development of Serbia
- Secretaria de Estado de Investigacion, Desarrollo e Innovacion, Programa Consolider-Ingenio 2010
- Plan Estatal de Investigacion Cientifica y Tecnica y de Innovacion 2017-2020 del Principado de Asturias [I-2018-000174]
- Fondo Europeo de Desarrollo Regional, Spain
- Ministry of Science, Technology and Research, Sri Lanka
- Swiss Funding Agency (ETH Board)
- Swiss Funding Agency (ETH Zurich)
- Swiss Funding Agency (PSI)
- Swiss Funding Agency (SNF)
- Swiss Funding Agency (UniZH)
- Swiss Funding Agency (Canton Zurich)
- Swiss Funding Agency (SER)
- Ministry of Science and Technology, Taipei
- Thailand Center of Excellence in Physics
- Institute for the Promotion of Teaching Science and Technology of Thailand
- Special Task Force for Activating Research
- National Science and Technology Development Agency of Thailand
- Scientific and Technical Research Council of Turkey
- Turkish Atomic Energy Authority
- National Academy of Sciences of Ukraine
- Science and Technology Facilities Council, U.K.
- US Department of Energy
- US National Science Foundation
- Marie-Curie program
- European Research Council and Horizon 2020 Grant [675440, 724704, 752730, 765710]
- Leventis Foundation
- A.P. Sloan Foundation
- Alexander von Humboldt Foundation
- Belgian Federal Science Policy Office
- Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
- Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
- F.R.S.-FNRS and FWO (Belgium) under the Excellence of Science - EOS [30820817]
- Beijing Municipal Science AMP
- Technology Commission [Z191100007219010]
- Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
- Lendulet (Momentum) Program
- Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences
- New National Excellence Program UNKP
- NKFIA (Hungary) [123842, 123959, 124845, 124850, 125105, 128713, 128786, 129058]
- Council of Scientific and Industrial Research, India
- HOMING PLUS program of the Foundation for Polish Science
- European Union, Regional Development Fund
- Mobility Plus program of the Ministry of Science and Higher Education
- National Science Center (Poland) [2014/14/M/ST2/00428, 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, 2012/07/E/ST2/01406]
- National Priorities Research Program by Qatar National Research Fund
- Ministry of Science and Higher Education (Russia) [0723-2020-0041]
- Tomsk Polytechnic University Competitiveness Enhancement Program
- Programa de Excelencia Maria de Maeztu
- Programa Severo Ochoa del Principado de Asturias
- Thalis program - EU-ESF
- Aristeia program - EU-ESF
- Greek NSRF
- Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University
- Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand)
- Kavli Foundation
- Nvidia Corporation
- SuperMicro Corporation
- Welch Foundation [C-1845]
- Weston Havens Foundation (U.S.A.)
The study presents the performance of reconstruction and identification algorithms for electrons and photons with the CMS experiment at the LHC. Results are based on data from proton-proton collisions and lead-lead collisions, showcasing innovative techniques used to reconstruct signals and optimize energy resolution. The measurements include energy resolution, energy scale uncertainty, and timing resolution in different collision scenarios, providing valuable insights into the performance of electron and photon reconstruction in the detector.
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.
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