Test of an Equivalence Theorem at One-Loop

M. S. Berger

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arXiv · hep-ph/9207275

Test of an Equivalence Theorem at One-Loop

M. S. Berger

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Abstract

We show that the equivalence theorem approximating one-loop gauge sector diagrams by including only Goldstone bosons in the loop gives a remarkably poor approximation to the amplitude for the decay $H\rightarrow γγ$ and for the process $γγ\rightarrow HH$. At one loop, large logarithms can arise that evade power counting arguments.

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M. S. Berger. 1992-07-30. Test of an Equivalence Theorem at One-Loop. https://arxiv.org/abs/hep-ph/9207275

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