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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/111349
Título: 
Measurements of the t(t)Overbar charge asymmetry using the dilepton decay channel in pp collisions at root s=7 TeV
Autor(es): 
Instituição: 
  • 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)
  • Universidade Federal do ABC (UFABC)
  • 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 Sci Res & Technol Arab Republ Egypt
  • NICPB
  • Univ Helsinki
  • Helsinki Inst Phys
  • Lappeenranta Univ Technol
  • CEA Saclay
  • Ecole Polytech
  • Univ Haute Alsace Mulhouse
  • CNRS IN2P3
  • Univ Lyon 1
  • Tbilisi State Univ
  • RWTH Aachen University
  • DESY
  • Univ Hamburg
  • Univ Karlsruhe
  • NCSR Demokritos
  • Univ Athens
  • Univ Ioannina
  • Wigner Res Ctr Phys
  • Inst Nucl Res ATOMKI
  • Debrecen Univ Med
  • Natl Inst Sci Educ & Res
  • 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
  • Univ Coll Dublin
  • INFN Sez Bari
  • Univ Bari
  • Politecn Bari
  • INFN Sez Bologna
  • Univ Bologna
  • INFN Sez Catania
  • Univ Catania
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  • Univ Milano Bicocca
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  • Kyungpook Natl Univ
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  • Lab Instrumentacao & Fis Expt Particulas
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  • CERN
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ISSN: 
1029-8479
Financiador: 
  • BMWF
  • FWF
  • FNRS
  • FWO
  • 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)
  • CERN
  • CAS
  • MoST
  • NSFC
  • COLCIENCIAS
  • MSES
  • CSF
  • RPF
  • MoER
  • ERDF
  • Academy of Finland
  • MEC
  • HIP
  • CEA
  • CNRS/ IN2P3
  • BMBF
  • DFG
  • HGF
  • GSRT
  • OTKA and NIH
  • DAE and DST
  • IPM
  • SFI
  • INFN
  • NRF
  • WCU
  • LAS
  • MOE
  • UM
  • CINVESTAV
  • CONACYT
  • CONACYT, SEP
  • UASLP- FAI (Mexico)
  • MBIE
  • PAEC
  • MSHE and NSC
  • FCT
  • JINR
  • MON, RosAtom, RAS and RFBR
  • MESTD
  • SEIDI and CPAN
  • Swiss Funding Agencies
  • NSC
  • ThEPCenter, IPST, STAR and NSTDA (Thailand)
  • TUBITAK and TAEK (Turkey)
  • NASU
  • STFC
  • DOE and NSF (USA)
Número do financiamento: 
MoERSF0690030s09
Resumo: 
The t(t)Overbar charge asymmetry in proton-proton collisions root s = 7TeV is measured using the dilepton decay channel (ee, e mu, or mu mu). The data correspond to a total integrated luminosity of 5.0 fb(-1), collected by the CMS experiment at the LHC. The t(t) Overbar and lepton charge asymmetries, defined as the differences in absolute values of the rapidities between the reconstructed top quarks and antiquarks and of the pseudorapidities between the positive and negative leptons, respectively, are measured to be A(C) = -0.010 +/- 0.017 (stat.) +/- 0.008 (syst.) and A(C)(lep) = 0.009 +/- 0.010 (stat.) +/- 0.006 (syst.). The lepton charge asymmetry is also measured as a function of the invariant mass, rapidity, and transverse momentum of the system. All measurements are consistent with the expectations of the standard model.
Data de publicação: 
30-Abr-2014
Citação: 
Journal Of High Energy Physics. New York: Springer, n. 4, 35 p., 2014.
Duração: 
35
Publicador: 
Springer
Palavras-chaves: 
  • Hardon-Hadron Scattering
  • Top physics
Fonte: 
http://dx.doi.org/10.1007/JHEP04(2014)191
Endereço permanente: 
Direitos de acesso: 
Acesso aberto
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/111349
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