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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24737
Title: 
Measurement of the inclusive W and Z production cross sections in pp collisions at root s = 7 TeV with the CMS experiment
Author(s): 
Institution: 
  • Yerevan Phys Inst
  • Inst Hochenergiephys OeAW
  • Natl Ctr Particle & High Energy Phys
  • Univ Antwerp
  • Vrije Univ Brussel
  • Univ Libre Brussels
  • Univ Ghent
  • Catholic Univ Louvain
  • Univ Mons
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Estadual Paulista (UNESP)
  • Bulgarian Acad Sci
  • Univ Sofia
  • Inst High Energy Phys
  • Peking Univ
  • Universidad de los Andes
  • Tech Univ Split
  • Univ Split
  • Rudjer Boskovic Inst
  • Univ Cyprus
  • Charles Univ Prague
  • Acad Sc Res & Technol Arab Republ Egypt
  • NICPB
  • Univ Helsinki
  • Helsinki Inst Phys
  • Lappeenranta Univ Technol
  • CNRS
  • CEA Saclay
  • Ecole Polytech
  • Univ Haute Alsace Mulhouse
  • Inst Natl Phys Nucl & Phys Particules IN2P3
  • Univ Lyon 1
  • Tbilisi State Univ
  • RWTH Aachen University
  • DESY
  • Univ Hamburg
  • Univ Karlsruhe
  • Inst Nucl Phys Demokritos
  • Univ Athens
  • Univ Ioannina
  • KFKI Res Inst Particle & Nucl Phys
  • Inst Nucl Res ATOMKI
  • Univ Debrecen
  • Panjab Univ
  • University of Delhi
  • Saha Inst Nucl Phys
  • Bhabha Atom Res Ctr
  • Tata Inst Fundamental Res EHEP
  • Tata Inst Fundamental Res HECR
  • Inst Res & Fundamental Sci IPM
  • Ist Nazl Fis Nucl
  • Univ Bari
  • Politecn Bari
  • Univ Bologna
  • Univ Roma La Sapienza
  • Univ Turin
  • Univ Piemonte Orientale Novara
  • Univ Trieste
  • Kangwon Natl Univ
  • Kyungpook Natl Univ
  • Chonnam Natl Univ
  • Korea University
  • Univ Seoul
  • Sungkyunkwan Univ
  • Vilnius Univ
  • IPN
  • Univ Iberoamer
  • Benemerita Univ Autonoma Puebla
  • Univ Autonoma San Luis Potosi
  • Univ Auckland
  • Univ Canterbury
  • Quaid I Azam Univ
  • Univ Warsaw
  • Soltan Inst Nucl Studies
  • Lab Instrumentacao & Fis Expt Particulas
  • Joint Inst Nucl Res
  • Petersburg Nucl Phys Inst
  • Russian Acad Sci
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Moscow MV Lomonosov State Univ
  • PN Lebedev Phys Inst
  • University of Belgrade
  • Vinca Inst Nucl Sci
  • CIEMAT
  • Univ Autonoma Madrid
  • Univ Oviedo
  • Univ Cantabria
  • CERN
  • Paul Scherrer Inst
  • ETH
  • Univ Zurich
  • Natl Cent Univ
  • Natl Taiwan Univ
  • Cukurova Univ
  • Middle E Tech Univ
  • Bogazici Univ
  • Natl Sci Ctr
  • Univ Bristol
  • Rutherford Appleton Lab
  • Univ London Imperial Coll Sci Technol & Med
  • Brunel Univ
  • Baylor Univ
  • Univ Alabama
  • Boston University
  • Brown University
  • Univ Calif Davis
  • Univ Calif Los Angeles
  • University of California, Riverside (UCR)
  • Univ Calif San Diego
  • Univ Calif Santa Barbara
  • CALTECH
  • Carnegie Mellon Univ
  • Univ Colorado
  • Cornell Univ
  • Fairfield Univ
  • Fermilab Natl Accelerator Lab
  • Univ Florida
  • Florida Int Univ
  • Florida State University
  • Florida Inst Technol
  • Univ Illinois
  • Univ Iowa
  • Johns Hopkins Univ
  • University of Kansas (KU)
  • Kansas State University
  • Lawrence Livermore Natl Lab
  • University of Maryland
  • MIT
  • Univ Minnesota
  • University of Mississippi
  • Univ Nebraska Lincoln
  • SUNY Buffalo
  • Northeastern University
  • Northwestern University (NU)
  • Univ Notre Dame
  • Ohio State Univ
  • Princeton University
  • Univ Puerto Rico
  • Purdue Univ
  • Purdue University Calumet
  • Rice University
  • University of Rochester
  • Rockefeller Univ
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  • Wayne State Univ
  • Univ Wisconsin
  • Universidade Federal do ABC (UFABC)
  • Suez Canal Univ
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  • Fayoum Univ
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  • Brandenburg Tech Univ Cottbus
  • Eotvos Lorand Univ
  • Visva Bharati Univ
  • Sharif Univ Technol
  • Shiraz Univ
  • Isfahan Univ Technol
  • Univ Rome
  • Univ Basilicata
  • Univ Siena
  • Scuola Normale Super Pisa
  • Sezione Ist Nazl Fis Nucl
  • Gaziosmanpasa Univ
  • Adiyaman Univ
  • Mersin Univ
  • Izmir Inst Technol
  • Kafkas Univ
  • Suleyman Demirel Univ
  • Ege Univ
  • Univ Southampton
  • Univ Perugia
  • Utah Valley Univ
  • Los Alamos Natl Lab
  • Erzincan Univ
ISSN: 
1029-8479
Sponsorship: 
  • European Research Council (European Union)
  • Leventis Foundation
  • A. P. Sloan Foundation
  • Alexander von Humboldt Foundation
  • Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy)
  • 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)
  • Council of Scientific and Industrial Research (CSIR) - India
  • Austrian Federal Ministry of Science and Research
  • Belgium Fonds de la Recherche Scientifique
  • Fonds voor Wetenschappelijk Onderzoek
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
  • Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • Bulgarian Ministry of Education and Science
  • Organisation Européenne pour la Recherche Nucléaire (CERN)
  • Chinese Academy of Sciences (CAS)
  • Ministry of Science and Technology
  • National Natural Science Foundation of China (NSFC)
  • Colombian Funding Agency (COLCIENCIAS)
  • Croatian Ministry of Science, Education and Sport
  • Research Promotion Foundation (RPF)
  • Estonian Academy of Sciences
  • NICPB
  • Academy of Finland
  • Finnish Ministry of Education and Culture
  • Helsinki Institute of Physics (HIP)
  • Institut national de physique nucléaire et de physique des particules (IN2P3/CNRS)
  • Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
  • Bundesministerium für Bildung und Forschung (BMBF)
  • Deutsche Forschungsgemeinschaft (DFG)
  • Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
  • General Secretariat for Research and Technology (GSRT)
  • National Scientific Research Foundation
  • National Office for Research and Technology, Hungary
  • Department of Atomic Energy
  • Department of Science and Technology (DST) - India
  • Institute for Studies in Theoretical Physics and Mathematics, Iran
  • Science Foundation Ireland (SFI)
  • Istituto Nazionale di Fisica Nucleare (INFN)
  • Korean Ministry of Education, Science and Technology
  • National Research Foundation of Korea (NRF)
  • Lithuanian Academy of Sciences
  • Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)
  • Consejo Nacional de Ciencia y Tecnología (CONACYT)
  • SEP
  • UASLP-FAI
  • Ministry of Science and Innovation, New Zealand
  • Pakistan Atomic Energy Commission (PAEC)
  • State Commission for Scientific Research, Poland
  • Fundação para a Ciência e a Tecnologia (FCT)
  • Joint Institute for Nuclear Research (JINR)
  • Ministry of Science and Technologies of the Russian Federation
  • Russian Ministry of Atomic Energy
  • Russian Foundation for Basic Research (RFBR)
  • Ministry of Science and Technological Development of Serbia
  • Ministerio de Ciência e Innovacion
  • Programa Consolider-Ingenio, Spain
  • ETH Board
  • ETH Zurich
  • PSI
  • SNF
  • UniZH
  • Canton Zurich
  • SER
  • National Science Council, Taipei
  • Scientific and Technical Research Council of Turkey
  • Turkish Atomic Energy Authority
  • Science and Technology Facilities Council (STFC)
  • US Department of Energy
  • US National Science Foundation
Abstract: 
A measurement of inclusive W and Z production cross sections in pp collisions at root s = 7 TeV is presented. The electron and muon decay channels are analyzed in a data sample collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 pb(-1). The measured inclusive cross sections are sigma(pp -> WX) x B(W -> lv) = 10.31 +/- 0.02 (stat.) +/- 0.09 (syst.) +/- 0.10 (th.) +/- 0.41 (lumi.) nb and sigma(pp -> ZX) x B(Z -> l(broken vertical bar) l(-)) = 0.974 +/- 0.007 (stat.) +/- 0.007 (syst.) +/- 0.018 (th.) +/- 0.039 (lumi.) nb, limited to the dilepton invariant mass range 60 to 120 GeV. The luminosity-independent cross section ratios are (sigma(pp -> WX) x B(W -> lv)) / (sigma(pp -> ZX) x B(Z -> l(+)l(-))) = 10.54 +/- 0.07 (stat.) +/- 0.08 (syst.) +/- 0.16 (th.) and (sigma(pp -> W+ X) x B(W+ -> l(+) v)) / (sigma(pp -> W- X) x B(W- -> l(-) (v) over bar)) = 1.421 +/- 0.006 (stat.) +/- 0.014 (syst.) +/- 0.029 (th.). The measured values agree with next-to-next-to-leading order QCD cross section calculations based on recent parton distribution functions.
Issue Date: 
1-Oct-2011
Citation: 
Journal of High Energy Physics. New York: Springer, n. 10, p. 76, 2011.
Time Duration: 
76
Publisher: 
Springer
Keywords: 
Hadron-Hadron Scattering
Source: 
http://dx.doi.org/10.1007/JHEP10(2011)132
URI: 
http://hdl.handle.net/11449/24737
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24737
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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