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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/71795
Title: 
Measurement of the charge ratio of atmospheric muons with the CMS detector
Author(s): 
Institution: 
  • Yerevan Physics Institute
  • Institut für Hochenergiephysik der OeAW
  • National Centre for Particle and High Energy Physics
  • Universiteit Antwerpen
  • Vrije Universiteit Brussel
  • Université Libre de Bruxelles
  • Ghent University
  • Université Catholique de Louvain
  • Université de Mons
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Estadual Paulista (UNESP)
  • Institute for Nuclear Research and Nuclear Energy
  • University of Sofia
  • Institute of High Energy Physics
  • Peking University
  • Universidad de los Andes
  • Technical University of Split
  • University of Split
  • Institute Rudjer Boskovic
  • University of Cyprus
  • Egyptian Network of High Energy Physics
  • National Institute of Chemical Physics and Biophysics
  • University of Helsinki
  • Helsinki Institute of Physics
  • Lappeenranta University of Technology
  • IN2P3-CNRS
  • CEA/Saclay
  • Université de Haute Alsace Mulhouse, CNRS/IN2P3
  • Centre de Calcul de l'Institut National de Physique Nucleaire et de Physique des Particules (IN2P3)
  • CNRS-IN2P3, Institut de Physique Nucléaire de Lyon
  • Academy of Science
  • I. Physikalisches Institut
  • III. Physikalisches Institut A
  • III. Physikalisches Institut B
  • Deutsches Elektronen-Synchrotron
  • University of Hamburg
  • Institut für Experimentelle Kernphysik
  • Institute of Nuclear Physics Demokritos
  • University of Athens
  • University of Ioánnina
  • KFKI Research Institute for Particle and Nuclear Physics
  • Institute of Nuclear Research ATOMKI
  • University of Debrecen
  • Panjab University
  • University of Delhi
  • Bhabha Atomic Research Centre
  • Tata Institute of Fundamental Research - EHEP
  • Tata Institute of Fundamental Research - HECR
  • Institute for Studies in Theoretical Physics and Mathematics (IPM)
  • INFN Sezione di Bari
  • Università di Bari
  • Politecnico di Bari
  • INFN Sezione di Bologna
  • Università di Bologna
  • INFN Sezione di Catania
  • Università di Catania
  • INFN Sezione di Firenze
  • Università di Firenze
  • INFN Laboratori Nazionali di Frascati
  • INFN Sezione di Genova
  • INFN Sezione di Milano-Biccoca
  • Università di Milano-Bicocca
  • INFN Sezione di Napoli
  • Università di Napoli Federico II
  • INFN Sezione di Padova
  • Università di Padova
  • Università di Trento (Trento)
  • INFN Sezione di Pavia
  • Università di Pavia
  • INFN Sezione di Perugia
  • Università di Perugia
  • INFN Sezione di Pisa
  • Università di Pisa
  • Scuola Normale Superiore di Pisa
  • INFN Sezione di Roma
  • Università di Roma La Sapienza
  • INFN Sezione di Torino
  • Università di Torino
  • Università del Piemonte Orientale (Novara)
  • INFN Sezione di Trieste
  • Università di Trieste
  • Kyungpook National University
  • Institute for Universe and Elementary Particles
  • Korea University
  • University of Seoul
  • Sungkyunkwan University
  • Vilnius University
  • Centro de Investigacion y de Estudios Avanzados del IPN
  • Universidad Iberoamericana
  • Benemerita Universidad Autonoma de Puebla
  • Universidad Autónoma de San Luis Potosí
  • University of Auckland
  • University of Canterbury
  • Quaid-I-Azam University
  • Institute of Experimental Physics
  • Soltan Institute for Nuclear Studies
  • Laboratório de Instrumentação e Física Experimental de Partículas (LIP)
  • Joint Institute for Nuclear Research
  • Petersburg Nuclear Physics Institute
  • Institute for Nuclear Research
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Moscow State University
  • P.N. Lebedev Physical Institute
  • Institute for High Energy Physics
  • Vinca Institute of Nuclear Sciences
  • Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
  • Universidad Autónoma de Madrid
  • Universidad de Oviedo
  • CSIC - Universidad de Cantabria
  • European Organization for Nuclear Research
  • Paul Scherrer Institut
  • ETH Zurich
  • Universität Zürich
  • National Central University
  • National Taiwan University (NTU)
  • Cukurova University
  • Physics Department
  • Bogaziçi University
  • Kharkov Institute of Physics and Technology
  • University of Bristol
  • Rutherford Appleton Laboratory
  • University of London
  • Brunel University
  • Boston University
  • Brown University
  • University of California, Davis
  • University of California, Los Angeles
  • University of California, Riverside (UCR)
  • University of California
  • University of California, Santa Barbara
  • California Institute of Technology
  • Carnegie Mellon University
  • University of Colorado at Boulder
  • Cornell University
  • Fairfield University
  • Fermi National Accelerator Laboratory
  • University of Florida
  • Florida International University
  • Florida State University
  • Florida Institute of Technology
  • University of Illinois at Chicago (UIC)
  • The University of Iowa
  • Johns Hopkins University
  • University of Kansas (KU)
  • Kansas State University
  • Lawrence Livermore National Laboratory
  • University of Maryland
  • Massachusetts Institute of Technology (MIT)
  • University of Minnesota
  • University
  • University of Nebraska-Lincoln
  • State University of New York at Buffalo
  • Northeastern University
  • Northwestern University (NU)
  • University of Notre Dame
  • The Ohio State University
  • Princeton University
  • University of Puerto Rico
  • Purdue University
  • Purdue University Calumet
  • Rice University
  • University of Rochester
  • The Rockefeller University
  • State University of New Jersey
  • University of Tennessee
  • Texas A and M University
  • Texas Tech University
  • Vanderbilt University
  • University of Virginia (UVA)
  • Wayne State University
  • University of Wisconsin
ISSN: 
0370-2693
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. © 2010.
Issue Date: 
1-Aug-2010
Citation: 
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 692, n. 2, p. 83-104, 2010.
Time Duration: 
83-104
Keywords: 
  • Charge ratio
  • CMS
  • Cosmic rays
  • Muon
  • Physics
Source: 
http://dx.doi.org/10.1016/j.physletb.2010.07.033
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/71795
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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