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Title: Right-handed sneutrinos as asymmetric DM and neutrino masses from neutrinophilic Higgs bosons

We consider an extension of the Next-to-Minimal Supersymmetric Standard Model by three right-handed neutrinos and a pair of neutrinophilic Higgs superfields. The small neutrino masses arise naturally from a small vacuum expectation value of the additional Higgs fields (hence without lepton number violation), while the lightest right-handed sneutrinos can constitute asymmetric Dark Matter. The right-handed sneutrino and baryon asymmetries are connected through equilibrium processes in the early universe, explaining the coincidence of the DM and baryon abundances. We show that particle physics and astrophysical constraints are satisfied.
Authors:
 [1]
  1. Laboratoire de Physique Théorique, CNRS and Université de Paris-Sud (UMR 8627), Bât. 210, Orsay, 91405 (France)
Publication Date:
OSTI Identifier:
22369946
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2013; Journal Issue: 11; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; ASYMMETRY; BARYONS; EQUILIBRIUM; EXPECTATION VALUE; HIGGS BOSONS; HIGGS MODEL; LEPTON NUMBER; LIMITING VALUES; MASS; NEUTRINOS; NONLUMINOUS MATTER; STANDARD MODEL; SUPERSYMMETRY; UNIVERSE