Probing 3-3-1 models in diphoton Higgs boson decay

被引：62

作者：

Alves, A. ^{[1
]}

Ramirez Barreto, E. ^{[2
]}

Dias, A. G. ^{[2
]}

Pires, C. A. de S. ^{[3
]}

Queiroz, F. S. ^{[3
,4
]}

Rodrigues da Silva, P. S. ^{[4
]}

机构：

[1] Univ Fed Sao Paulo, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, Brazil

[2] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP, Brazil

[3] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, PB, Brazil

[4] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 11期

基金：

巴西圣保罗研究基金会;

关键词：

PAIR PRODUCTION; GAUGE THEORY; WEAK; MUONIUM; LHC; BILEPTONS; SEARCH;

D O I：

10.1103/PhysRevD.84.115004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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) <= 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.

引用

页数：11

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