Neutrino mass, Dark Matter and Baryon Asymmetry via TeV-Scale Physics without Fine-Tuning

Jul, 2008
4 pages
Published in:
  • Phys.Rev.Lett. 102 (2009) 051805
e-Print:
Report number:
  • UT-HET-011,
  • IFT-UAM-CSIC-08-40

Citations per year

200820122016202020240102030
Abstract: (arXiv)
We propose an extended version of the standard model, in which neutrino oscillation, dark matter, and baryon asymmetry of the Universe can be simultaneously explained by the TeV-scale physics without assuming unnatural hierarchy among the mass scales. Tiny neutrino masses are generated at the three loop level due to the exact Z2Z_2 symmetry, by which stability of the dark matter candidate is guaranteed. The extra Higgs doublet is required not only for the tiny neutrino masses but also for successful electroweak baryogenesis. The model provides discriminative predictions especially in Higgs phenomenology, so that it is testable at current and future collider experiments.
  • 14.60.Pq
  • 12.60.Fr
  • 14.80.Cp
  • neutrino: oscillation
  • neutrino: mass generation
  • dark matter: lifetime
  • baryon: asymmetry
  • symmetry: Z(2)
  • Higgs particle: multiplet
  • doublet: 2