Search for excited quarks in the gamma plus jet final state in proton-proton collisions at root s=8 TeV
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
18/03/2015
18/03/2015
10/11/2014
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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 excited quarks decaying into the gamma + jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7 fb(-1) collected by the CMS experiment in proton-proton collisions at root s = 8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the gamma + jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners. (C) 2014 The Authors. Published by Elsevier B.V. |
Formato |
274-293 |
Identificador |
http://dx.doi.org/10.1016/j.physletb.2014.09.048 Physics Letters B. Amsterdam: Elsevier Science Bv, v. 738, p. 274-293, 2014. 0370-2693 http://hdl.handle.net/11449/116703 10.1016/j.physletb.2014.09.048 WOS:000344624900043 WOS000344624900043.pdf |
Idioma(s) |
eng |
Publicador |
Elsevier B.V. |
Relação |
Physics Letters B |
Direitos |
openAccess |
Palavras-Chave | #CMS #Physics #Photon #Jet |
Tipo |
info:eu-repo/semantics/article |