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Higgs Decay to Photons at Two Loops

Frank Fugel
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Abstract

The calculation of the two-loop corrections to the partial width of an intermediate-mass Higgs boson decaying into a pair of photons is reviewed. The main focus lies on the electroweak (EW) contributions. The sum of the EW corrections ranges from -4% to 0% for a Higgs mass between 100 GeV and 150 GeV, while the complete correction at two-loop order amounts to less than +-1.5% in this regime.

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Frank Fugel. 2006-08-30. Higgs Decay to Photons at Two Loops. https://arxiv.org/abs/hep-ph/0608303

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