Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
29/01/2013
|
Resumo |
The results of a search for flavor changing neutral currents in top quark decays t→Zq in events with a topology compatible with the decay chain tt̄→Wb+Zq→ℓνb+ℓℓq are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0 fb-1 of proton-proton collisions at a center-of-mass energy of 7 TeV, collected with the CMS detector at the LHC. The observed number of events agrees with the standard model prediction and no evidence for flavor changing neutral currents in top quark decays is found. A t→Zq branching fraction greater than 0.21% is excluded at the 95% confidence level. © 2012 CERN. |
Formato |
1252-1272 |
Identificador |
http://dx.doi.org/10.1016/j.physletb.2012.12.045 Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 718, n. 4-5, p. 1252-1272, 2013. 0370-2693 http://hdl.handle.net/11449/74429 10.1016/j.physletb.2012.12.045 WOS:000314554300012 2-s2.0-84872472102 2-s2.0-84872472102.pdf |
Idioma(s) |
eng |
Relação |
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Direitos |
openAccess |
Palavras-Chave | #CMS #Physics #Searches #Top |
Tipo |
info:eu-repo/semantics/article |