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General formulae for f1 --> f2 gamma

L. Lavoura
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Abstract

At one-loop level the decay f1 --> f2 gamma, where f1 and f2 are two spin-1/2 particles with the same electric charge, is mediated by a boson B and a spin-1/2 fermion F. The boson B may have either spin 0 - interacting with the fermions through Dirac matrices 1 and gamma5 - or spin 1 - with V+A and V-A couplings to the fermions. I give general formulae for the one-loop electroweak amplitude of f1 --> f2 gamma in all these cases.

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L. Lavoura. 2003-02-25. General formulae for f1 --> f2 gamma. https://doi.org/10.1140/epjc%2Fs2003-01212-7

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