A TeV scale model for neutrino mass, dark matter and baryon asymmetry

Abstract

We discuss a TeV scale model which would explain neutrino oscillation, dark matter, and baryon asymmetry of the Universe simultaneously by the dynamics of the extended Higgs sector and TeV-scale right-handed neutrinos with imposed an exact $Z_2$ symmetry. Tiny neutrino masses are generated at the three loop level, a singlet scalar field is a candidate of dark matter, and a strong first order phase transition is realized for successful electroweak baryogenesis. The model provides various discriminative predictions, so that it is testable at the current and future experiments.

4 pages. 3 figures, talk at Rencontres de Moriond 2009, QCD and High Energy Interaction, March 14 - 21 (2009), Le Thuile, Italy