paper

Complete three-loop QCD corrections to the decay H -> γγ

arXiv:1212.6233 · doi:10.1016/j.physletb.2013.02.040

Abstract

We present the result for the three-loop singlet QCD corrections to the decay of a Higgs boson into two photons and improve the calculation for the non-singlet case. With the new result presented, the decay width Gamma(H -> γγ) is completely known at O(G_F α^2 α_s^2, G_F α^3).

11 pages