Recent Higgs boson data and Higgs triplet model with vectorlike quarks.

Some vectorlike 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 vectorlike quarks can suppress the cross section of gg → h sizably, while the charged scalars, especially for the doubly charged scalar, can enhance Br(h → γγ) more sizably. Besides, the Higgs couplings to WW, ZZ, and light fermions can be the same as their standard model (SM) values. Thus, the model will enhance the Higgs production rates into γγ and jjγγ, while those for WW*, ZZ*, and T¯T at the LHC are reduced relative to their SM predictions. The Higgs production rate into Vbb at the Tevatron is the same as the SM prediction. [ABSTRACT FROM AUTHOR]