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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/23834
Título: 
Search for W ' boson production in the W ' -> t(b)over-bar decay channel
Autor(es): 
Instituição: 
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Univ Buenos Aires
  • Universidade do Estado do Rio de Janeiro (UERJ)
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ISSN: 
0370-2693
Resumo: 
We present a search for the production of a new heavy gauge boson W' that decays to a top quark and a bottom quark. We have analyzed 230 pb(-1) of data collected with the DO detector at the Fermilab Tevatron collider at a center-of-mass energy of 1.96 TeV. No significant excess of events above the standard model expectation is found in any region of the final state invariant mass distribution. We set upper limits on the production cross section of W' bosons times branching ratio to top quarks at the 95% confidence level for several different W, boson masses. We exclude masses between 200 and 610 GeV for a W' boson with standard-model-like couplings, between 200 and 630 GeV for a W, boson with right-handed couplings that is allowed to decay to both leptons and quarks, and between 200 and 670 GeV for a W' boson with right-handed couplings that is only allowed to decay to quarks. (c) 2006 Elsevier B.V. All rights reserved.
Data de publicação: 
26-Out-2006
Citação: 
Physics Letters B. Amsterdam: Elsevier B.V., v. 641, n. 6, p. 423-431, 2006.
Duração: 
423-431
Publicador: 
Elsevier B.V.
Fonte: 
http://dx.doi.org/10.1016/j.physletb.2006.09.021
Endereço permanente: 
http://hdl.handle.net/11449/23834
Direitos de acesso: 
Acesso aberto
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/23834
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