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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/116697
Title: 
Measurement of the production cross section for a W boson and two b jets in pp collisions at root s=7 TeV
Author(s): 
Institution: 
  • Yerevan Phys Inst
  • Inst Hochenergiephys OeAW
  • Natl Ctr Particle & High Energy Phys
  • Univ Antwerp
  • Vrije Univ Brussel
  • Univ Libre Bruxelles
  • Univ Ghent
  • Catholic Univ Louvain
  • Univ Mons
  • Ctr Brasileiro Pesquisas Fis
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Estadual Paulista (UNESP)
  • Universidade Federal do ABC (UFABC)
  • Bulgarian Acad Sci
  • Univ Sofia
  • Inst High Energy Phys
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  • Univ Cyprus
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  • Rhein Westfal TH Aachen
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ISSN: 
0370-2693
Sponsorship: 
  • Marie-Curie programme
  • European Research Council and EPLANET (European Union)
  • Leventis Foundation
  • Alfred P. Sloan Foundation
  • Alexander von Humboldt Foundation
  • Belgian Federal Science Policy Office
  • Fonds pour la Formation la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
  • Agentschap voor Innovatie door Wetenschap en Technologie (IWTBelgium)
  • Ministry of Education, Youth and Sports (MEYS) of Czech Republic
  • Council of Science and Industrial Research, India
  • Compagnia di San Paolo (Torino)
  • HOMING PLUS programme of Foundation For Polish Science
  • EU
  • Regional Development Fund
  • Thalis and Aristeia programmes
  • EU-ESF
  • Greek NSRF
Abstract: 
The production cross section for a Wboson and two b jets is measured using proton-proton collisions at v root s = 7 TeV in a data sample collected with the CMS experiment at the LHC corresponding to an integrated luminosity of 5.0 fb(-1). The W + bbevents are selected in the W..decay mode by requiring a muon with transverse momentum pT> 25GeVand pseudorapidity |eta| < 2.1, and exactly two b-tagged jets with pT> 25GeVand |eta| < 2.4. The measured W + bbproduction cross section in the fiducial region, calculated at the level of final-state particles, is s(pp. W + bb) xB(W..) = 0.53 +/- 0.05 (stat.) +/- 0.09 (syst.) +/- 0.06 (theo.) 0.01 (lum.) pb, in agreement with the standard model prediction. In addition, kinematic distributions of the W + bbsystem are in agreement with the predictions of a simulation usingMadGraphandpythia. (C) 2014 The Authors. Published by Elsevier B. V.
Issue Date: 
30-Jul-2014
Citation: 
Physics Letters B. Amsterdam: Elsevier Science Bv, v. 735, p. 204-225, 2014.
Time Duration: 
204-225
Publisher: 
Elsevier B.V.
Keywords: 
  • CMS
  • Physics
  • SMP
Source: 
http://dx.doi.org/10.1016/j.physletb.2014.06.041
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/116697
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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