Anomalous couplings of vector bosons and the decay $H⟶\gamma \gamma$: Dimensional regularization versus momentum cutoff

Abstract

As an illustration of general principles, the $W$-boson loop contribution to the amplitude for the decay $H\to \gamma \gamma$ is calculated within a specific model for the effective lagrangian describing the anomalous gauge boson couplings. Different approaches to the dependence of the result on the scale of new physics $\Lambda$ are briefly discussed.

17 pages, 2 figures, accepted for publication in Czechoslovak Journal of Physics

References in corpus (5)

• Patterns of Deviation from the Standard Model
• The Chiral Approach to the Electroweak Interactions
• Anomalous Higgs Boson Production and Decay
• Electroweak effective lagrangians
• Uses and Abuses of Effective Lagrangians

Cited by in corpus (2)

• An effective lagrangian description of charged Higgs decays H^+ -> Wg, WZ and Wh
• Contribution of dimension-six bosonic operators to Higgs decay into two photons at one-loop level