Probing 3-3-1 Models in Diphoton Higgs Boson Decay

A. Alves; A. G. Dias; C. A. de S. Pires; E. Ramirez Barreto; F. S. Queiroz; P. S. Rodrigues da Silva

Probing 3-3-1 Models in Diphoton Higgs Boson Decay

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arxiv 1109.0238 v2 pith:UHJMQAW4 submitted 2011-09-01 hep-ph

A. Alves , E. Ramirez Barreto , A. G. Dias , C. A. de S. Pires , F. S. Queiroz , P. S. Rodrigues da Silva This is my paper · ORCID

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keywords bosonhiggsmodeldecaymodelschargeddiphotonexcess

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abstract

We investigate the Higgs boson production through gluon fusion and its decay into two photons at the LHC in the context of the minimal 3-3-1 model and its alternative version with exotic leptons. The diphoton Higgs decay channel presents an enhanced signal in this model compared to the Standard Model due to the presence of an extra singly charged vector boson and a doubly charged one. Prospects for the Higgs boson detection at 7 TeV center-of-mass energy with up to 10 fb$^{-1}$ are presented. Our results suggest that a Higgs boson from these 3-3-1 models can potentially explain the small excess for $m_H\leq 145$ GeV observed at the LHC. Otherwise, if this excess reveals to be only a statistical fluctuation of the Standard Model backgrounds severe constraints can be put on these models.

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