Search for Top-Quark Partners with Charge 5/3 in the Same-Sign Dilepton Final State
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
---|---|
Data(s) |
03/12/2014
03/12/2014
30/04/2014
|
Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) A search for the production of heavy partners of the top quark with charge 5/3 is performed in events with a pair of same-sign leptons. The data sample corresponds to an integrated luminosity of 19.5 fb(-1) and was collected at root s = 8 TeV by the CMS experiment. No significant excess is observed in the data above the expected background, and the existence of top-quark partners with masses below 800 GeV is excluded at a 95% confidence level, assuming they decay exclusively to tW. This is the first limit on these particles from the LHC, and it is significantly more restrictive than previous limits. |
Formato |
16 |
Identificador |
http://dx.doi.org/10.1103/PhysRevLett.112.171801 Physical Review Letters. College Pk: Amer Physical Soc, v. 112, n. 17, 16 p., 2014. 0031-9007 http://hdl.handle.net/11449/111350 10.1103/PhysRevLett.112.171801 WOS:000335816700005 WOS000335816700005.pdf |
Idioma(s) |
eng |
Publicador |
Amer Physical Soc |
Relação |
Physical Review Letters |
Direitos |
openAccess |
Tipo |
info:eu-repo/semantics/article |