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Measurement of the charge ratio of atmospheric muons with the CMS detector

Bornheim, A. and Bunn, J. and Gataullin, M. and Kcira, D. and Litvine, V. and Ma, Y. and Newman, H. B. and Rogan, C. and Shin, K. and Timciuc, V. and Veverka, J. and Wilkinson, R. and Yang, Y. and Zhu, R. Y. (2010) Measurement of the charge ratio of atmospheric muons with the CMS detector. Physics Letters B, 692 (2). pp. 83-104. ISSN 0370-2693. https://resolver.caltech.edu/CaltechAUTHORS:20101022-150802478

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Abstract

We present a measurement of the ratio of positive to negative muon fluxes from cosmic ray interactions in the atmosphere, using data collected by the CMS detector both at ground level and in the underground experimental cavern at the CERN LHC. Muons were detected in the momentum range from 5 GeV/c to 1 TeV/c. The surface flux ratio is measured to be 1.2766 ± 0.0032 (stat.) ± 0.0032 (syst.), independent of the muon momentum, below 100 GeV/c. This is the most precise measurement to date. At higher momenta the data are consistent with an increase of the charge ratio, in agreement with cosmic ray shower models and compatible with previous measurements by deep-underground experiments.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.physletb.2010.07.033 DOIArticle
ORCID:
AuthorORCID
Bornheim, A.0000-0002-0128-0871
Bunn, J.0000-0002-3798-298X
Kcira, D.0000-0002-8190-2414
Newman, H. B.0000-0003-0964-1480
Rogan, C.0000-0002-4166-4503
Zhu, R. Y.0000-0003-3091-7461
Additional Information:© CERN, for the benefit of the CMS Collaboration. Published by Elsevier B.V. This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited. Date submitted: 2010-05-29 08:19:58. Received 29 May 2010; revised 7 July 2010; accepted 14 July 2010. Editor: M. Doser. Available online 23 July 2010. We thank the technical and administrative staff at CERN and other CMS institutes. This work was supported by the Austrian Federal Ministry of Science and Research; the Belgium Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China; the Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport; the Research Promotion Foundation, Cyprus; the Estonian Academy of Sciences and NICPB; the Academy of Finland, Finnish Ministry of Education, and Helsinki Institute of Physics; the Institut National de Physique Nucléaire et de Physique des Particules/CNRS, and Commissariat à l’Énergie Atomique, France; the Bundesministerium für Bildung und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz–Gemeinschaft Deutscher Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece; the National Scientific Research Foundation, and National Office for Research and Technology, Hungary; the Department of Atomic Energy, and Department of Science and Technology, India; the Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation, Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Korean Ministry of Education, Science and Technology and the World Class University program of NRF, Korea; the Lithuanian Academy of Sciences; the Mexican Funding Agencies (CINVESTAV, CONACYT, SEP, and UASLP-FAI); the Pakistan Atomic Energy Commission; the State Commission for Scientific Research, Poland; the Fundação para a Ciência e a Tecnologia, Portugal; JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); the Ministry of Science and Technologies of the Russian Federation, and Russian Ministry of Atomic Energy; the Ministry of Science and Technological Development of Serbia; the Ministerio de Ciencia e Innovación, and Programa Consolider- Ingenio 2010, Spain; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the National Science Council, Taipei; the Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the Science and Technology Facilities Council, UK; the US Department of Energy, and the US National Science Foundation. Individuals have received support from the Marie-Curie IEF program (European Union); the Leventis Foundation; the A.P. Sloan Foundation; the Alexander von Humboldt Foundation; and the Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy).
Funders:
Funding AgencyGrant Number
Austrian Federal Ministry of Science and ResearchUNSPECIFIED
Belgium Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onder-zoekUNSPECIFIED
Conselho Nacional de Desenvolvimento Cientificico e Tecnologico (CNPq)UNSPECIFIED
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)UNSPECIFIED
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)UNSPECIFIED
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)UNSPECIFIED
Bulgarian Ministry of Education and ScienceUNSPECIFIED
European Organization for Nuclear Research (CERN)UNSPECIFIED
Chinese Academy of Sciences, Ministry of Science and TechnologyUNSPECIFIED
National Natural Science Foundation of ChinaUNSPECIFIED
COLCIENCIASUNSPECIFIED
Croatian Ministry of Science, Education and SportUNSPECIFIED
Research Promotion Foundation, CyprusUNSPECIFIED
Estonian Academy of SciencesUNSPECIFIED
National Institute of Chemical Physics and Biophysics (NICPB)UNSPECIFIED
Academy of Finland, Finnish Ministry of EducationUNSPECIFIED
Helsinki Institute of PhysicsUNSPECIFIED
Institut National de Physique Nucleaire et de Physique des Particules/CNRSUNSPECIFIED
Commissariat a l'Energie Atomique (CEA)UNSPECIFIED
Bundesministerium fur Bildung und Forschung (BMBF)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Helmholtz-Gemeinschaft Deutscher ForschungszentrenUNSPECIFIED
General Secretariat for Research and Technology, GreeceUNSPECIFIED
National Scientific Research FoundationUNSPECIFIED
National Office for Research and Technology, HungaryUNSPECIFIED
Department of Atomic EnergyUNSPECIFIED
Department of Science and Technology, IndiaUNSPECIFIED
Institute for Studies in Theoretical Physics and Mathematics, IranUNSPECIFIED
Science Foundation, IrelandUNSPECIFIED
Istituto Nazionale di Fisica Nucleare (INFN)UNSPECIFIED
Korean Ministry of Education, Science and TechnologyUNSPECIFIED
National Research Foundation of Korea (NRF)UNSPECIFIED
Lithuanian Academy of SciencesUNSPECIFIED
CINVESTAVUNSPECIFIED
Consejo Nacional de Ciencia y Tecnología (CONACYT)UNSPECIFIED
Secretaría de Educación Pública (SEP)UNSPECIFIED
UASLP-FAIUNSPECIFIED
Pakistan Atomic Energy CommissionUNSPECIFIED
State Commission for Scientific Research, PolandUNSPECIFIED
Fundação para a Ciência e a Tecnologia (FCT)UNSPECIFIED
JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan)UNSPECIFIED
Ministry of Science and Technologies of the Russian FederationUNSPECIFIED
Russian Ministry of Atomic EnergyUNSPECIFIED
Ministry of Science and Technological Development of SerbiaUNSPECIFIED
Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, SpainUNSPECIFIED
ETH BoardUNSPECIFIED
ETH ZurichUNSPECIFIED
PSIUNSPECIFIED
Stanford Nanofabrication Facility (SNF)UNSPECIFIED
UniZHUNSPECIFIED
Canton ZurichUNSPECIFIED
SERUNSPECIFIED
National Science Council (Taipei)UNSPECIFIED
Scientific and Technical Research Council of TurkeyUNSPECIFIED
Turkish Atomic Energy AuthorityUNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
European UnionUNSPECIFIED
Leventis FoundationUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Alexander von Humboldt FoundationUNSPECIFIED
Associazione per lo Sviluppo Scientifico e Tecnologico del PiemonteUNSPECIFIED
Subject Keywords:CMS; Physics; Muon; Cosmic rays; Charge ratio
Issue or Number:2
Record Number:CaltechAUTHORS:20101022-150802478
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20101022-150802478
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20489
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:25 Oct 2010 16:27
Last Modified:09 Mar 2020 13:19

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