The SM expected branching ratio for $h\to \gamma \gamma$ and an excess for $h\to Z\gamma$

Xiao-Gang He, Zhong-Lv Huang, Ming-Wei Li +1

The recent measurements of $h\to Z\gamma$ from ATLAS and CMS show an excess of the signal strength ${\mu }_Z=(\sigma \cdot \mathcal{B}{)}_{\mathrm{obs}}/(\sigma \cdot \mathcal{B}{)}_{\mathrm{SM}}=2.2\pm 0.7$, n…