Higgs decay into diphoton in the Composite Higgs Model

Understand

We explore the Higgs couplings to gauge bosons in the minimal $SO(5)/SO(4)$ 4D composite Higgs model.

• The pions scatterings put unitary constraints on the couplings and therefore determine the branch ratios of various Higgs decays.
• Through fine tuning the parameters, enhancement of Higgs to diphoton rate is possible to be achieved with the existence of vector meson fields.