Properties of the decay $H\to \gamma \gamma$ using the approximate ${\alpha }_s^4$-corrections and the principle of maximum conformality

Qing Yu, Xing-Gang Wu, Sheng-Quan Wang +3

The Higgs boson decay channel, $H\to \gamma \gamma$, is one of the most important channels for probing the properties of the Higgs boson. In the paper, we reanalyze its decay width by using th…