Complete three-loop QCD corrections to the decay H -> γγ
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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 -> \gamma \gamma) is completely known at O(G_F \alpha ^2 \alpha_s^2, G_F \alpha ^3).Keywords
All Related Versions
- Version 1, 2012-12-26, ArXiv
- Published version: Physics Letters B, 721 (1-3), 131.
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