General one-loop formulas for decay \(h\rightarrow Z\gamma \)
2017
Radiative corrections to the decay \(h\rightarrow Z\gamma \) are evaluated in the one-loop approximation. The unitary gauge is used. The analytic result is expressed in terms of the Passarino-Veltman functions. The calculations are applicable for the Standard Model as well for a wide class of its gauge extensions. In particular, the decay width of a charged Higgs boson \(H^{\pm }\rightarrow W^{\pm }\gamma \) can be derived. The consistence of our formulas and several specific earlier results is shown.
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