Tuesday, July 23, 2013

1307.5572 (Chong-Xing Yue et al.)

Vector bileptons and the decays $h\rightarrow γγ,Zγ$    [PDF]

Chong-Xing Yue, Qiu-Yang Shi, Tian Hua
Takeing into account of the constraints on the relevant parameters from the muon anomalous magnetic moment, we consider the contributions of the vector bileptons $V^{\pm}$ and $U^{\pm\pm}$ predicted by the reduced minimal 331 model to the Higgs decay channels $h \rightarrow \gamma \gamma$ and $Z\gamma$. Our numerical results show that the vector bileptons can enhance the partial width $\Gamma(h\rightarrow \gamma\gamma)$, while reduce the partial width $\Gamma(h\rightarrow Z\gamma)$, which are anti-correlated. With reasonable values of the relevant free parameters, the vector bileptons can explain the $LHC$ data for the $\gamma\gamma$ signal. If the $CMS$ data persists, the value of the free parameters $ \lambda_{2}$ and $ \lambda_{3}$ should be severe constrained.
View original: http://arxiv.org/abs/1307.5572

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