Search for flavor changing neutral currents in decays of top quarks
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
11/07/2011
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Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) We present a search for flavor changing neutral currents in decays of top quarks. The analysis is based on a search for t (t) over bar -> l'vl (l) over bar + jets (l, l' = e. mu) final states using 4.1 fb(-1) of integrated luminosity of p (p) over bar collisions at root s = 1.96 TeV. We extract limits on the branching ratio B(t -> Zq) (q = u, c quarks), assuming anomalous tuZ or tcZ couplings. We do not observe any sign of such anomalous coupling and set a limit of B < 3.2% at 95% C.L. (C) 2011 Elsevier B.V. All rights reserved. |
Formato |
313-320 |
Identificador |
http://dx.doi.org/10.1016/j.physletb.2011.06.014 Physics Letters B. Amsterdam: Elsevier B.V., v. 701, n. 3, p. 313-320, 2011. 0370-2693 http://hdl.handle.net/11449/24061 10.1016/j.physletb.2011.06.014 WOS:000293487600006 |
Idioma(s) |
eng |
Publicador |
Elsevier B.V. |
Relação |
Physics Letters B |
Direitos |
closedAccess |
Palavras-Chave | #Tevatron #D0 #Top quark #Flavor changing neutral current |
Tipo |
info:eu-repo/semantics/article |