keV Sterile Neutrino Dark Matter and Neutrino Model Building

Details keV Sterile Neutrino Dark Matter and Neutrino Model Building keV Sterile Neutrino Dark Matter and Neutrino Model Building

2012-01-04

arxiv.org/abs/1201.0881v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 1 figure; Proceedings for the TAUP 2011 conference, Munich, Germany; content matches peer-reviewed and soon-to-be-pub

Scientific paper

A sterile neutrino with a mass around the keV scale could be an interesting candidate for warm dark matter. Although there are several scenarios and production mechanisms known in which such a particle could yield the correct abundance, there are astonishingly few models around that can actually yield an explanation for the appearance of a keV-like scale. We here review three main classes of such mass models for keV sterile neutrino dark matter, based on split seesaw, on L_e - L_\mu - L_\tau\ symmetry, and on the Froggatt-Nielsen mechanism, respectively.

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