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Evaluating The Two Loop Diagram Responsible For Neutrino Mass In Babu's Model

K. L. McDonald·B. H. J. McKellar
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Abstract

Babu studied the neutrino spectrum obtained when one adds a charged singlet and a doubly charged singlet to the standard model particle spectrum. It was found that the neutrinos acquire a mass matrix at the two-loop level which contains one massless eigenstate. The mass matrix of Babu's model depends on an integral over the undetermined loop momenta. We present the exact calculation of this integral.

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K. L. McDonald, B. H. J. McKellar. 2003-10-08. Evaluating The Two Loop Diagram Responsible For Neutrino Mass In Babu's Model. https://arxiv.org/abs/hep-ph/0309270

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