1206.1673 (Lei Wang et al.)

The recent Higgs boson data and Higgs triplet model with vector-like
quark    [PDF]

Lei Wang, Xiao-Fang Han

Some vector-like quarks are added to the Higgs triplet model with the motivation of fitting the recent Higgs boson data released by LHC and Tevatron collaborations. These vector-like quarks can suppress the cross section of $gg\to h$ sizably, while the charged scalars, especially for the doubly charged scalar, can enhance $Br(h\to \gamma\gamma)$ more sizably. Besides, the Higgs couplings to $WW$, $ZZ$ and light fermions can be the same as their SM values. Thus, the model will enhance the Higgs production rates into $\gamma\gamma$ and $jj\gamma\gamma$, while those for $WW^*$, $ZZ^*$ and $\tau\bar{\tau}$ at the LHC are reduced relative to their SM predictions. The Higgs production rates into $Vb\bar{b}$ at the Tevatron are the same as the SM values.

View original: http://arxiv.org/abs/1206.1673