1302.0502 (Chian-Shu Chen et al.)

$h\rightarrow Zγ$ in Type-II seesaw neutrino model    [PDF]

Chian-Shu Chen, Chao-Qiang Geng, Da Huang, Lu-Hsing Tsai

We study the Higgs decay channel of $h\rightarrow Z\gamma$ in the type-II seesaw neutrino model. In most of the allowed parameter space in the model, the new contribution to $h\rightarrow Z\gamma$ is correlated with that to $h\rightarrow\gamma\gamma$. If the current $2\sigma$ excess of the $h\rightarrow \gamma\gamma$ rate measured by the LHC persists, the $h\rightarrow Z\gamma$ rate should be also larger than the corresponding standard model prediction. We demonstrate that the anti-correlation between $h\rightarrow\gamma\gamma$ and $h\rightarrow Z\gamma$ only exists in some special region.

View original: http://arxiv.org/abs/1302.0502