From transition magnetic moments to majorana neutrino masses

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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9 pages, final version (improved notation, some mention of the dimension 5 mass operator)

Scientific paper

10.1016/j.physletb.2005.08.086

It is well known that a majorana mass induces a (small) transition magnetic moment. The converse is also true; in this paper we estimate the loop contribution of transition magnetic moments $[\mu]_{\alpha \beta}$ to the neutrino mass matrix $[m]_{\alpha \beta}$. We show that for hierarchical neutrino masses, the contribution of $[\mu]_{e \tau}$ to $[m]_{e \tau}$ can exceed the experimental value of $[m]_{e \tau}$.

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