Radiative Neutrino Mass, Dark Matter and Leptogenesis

Abstract

We propose an extension of the standard model, in which neutrinos are Dirac particles and their tiny masses originate from a one-loop radiative diagram. The new fields required by the neutrino mass-generation also accommodate the explanation for the matter-antimatter asymmetry and dark matter in the universe.

Comments: 4 pages, 3 figures. Revised version with improved model. Accepted by PRD