Higgs Decay to Two Photons

Abstract

The amplitude for Higgs decay to two photons is calculated in renormalizable and unitary gauges using dimensional regularization at intermediate steps. The result is finite, gauge independent, and in agreement with previously published results. The large Higgs mass limit is examined using the Goldstone-boson equivalence theorem as a check on the use of dimensional regularization and to explain the absence of decoupling.

15 pages, 5 figures; references added

References in corpus (5)

• Note on Higgs Decay into Two Photons $H\to \gamma \gamma$
• Higgs Decay into Two Photons through the W-boson Loop: No Decoupling in the m_W --> 0 Limit
• Higgs Decay into Two Photons, Revisited
• Higgs Decay H -->γγ through a W Loop: Difficulty with Dimensional Regularization
• Comment on H --> gamma gamma and the role of the decoupling theorem and the equivalence theorem

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