The smallest neutrino mass

Details The smallest neutrino mass The smallest neutrino mass

2006-11-30

arxiv.org/abs/hep-ph/0611389v2

Phys.Lett.B646:100-104,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages. v2: final version to appear on PLB; important reference added

Scientific paper

10.1016/j.physletb.2007.01.015

We consider models where one Majorana neutrino is massless at tree level (like the see saw with two right-handed neutrinos), and compute the contribution to its mass m generated by two-loop quantum corrections. The result is m \sim 10^{-13}eV in the SM and m \sim 10^{-10} eV (tanBeta/10)^4 in the MSSM, compatible with the restricted range suggested by Affleck-Dine baryogenesis.

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