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The νMSM,inflation, and dark matter
Authors:Mikhail Shaposhnikov  Igor Tkachev
Affiliation:1. Institut de Théorie des Phénomènes Physiques, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland;2. Theory Division, CERN, CH-1211 Geneve 23, Switzerland
Abstract:We show how to enlarge the νMSM (the minimal extension of the Standard Model by three right-handed neutrinos) to incorporate inflation and provide a common source for electroweak symmetry breaking and for right-handed neutrino masses. In addition to inflation, the resulting theory can explain simultaneously dark matter and the baryon asymmetry of the Universe; it is consistent with experiments on neutrino oscillations and with all astrophysical and cosmological constraints on sterile neutrino as a dark matter candidate. The mass of inflaton can be much smaller than the electroweak scale.
Keywords:14.60.Pq   98.80.Cq   95.35.+d
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