Neutrinos as Hot or Warm Dark Matter (Active + Sterile)
Neutrinos as Hot or Warm Dark Matter (Active + Sterile) Neutrinos as Hot or Warm Dark Matter (Active + Sterile)
A Naïve (Why Not) PictureHow dark is dark?HOTWARMCOLDHot dark matter: CB is guaranteed but not significant.Cold dark matter: most likely? At present most popular.Warm dark matter: suppress the small-scale structures.
Sub-eV or keV Neutrinos?A purely phenomenological argument to support sub-eV +keV sterile ’s in the FLAVOR DESERT of the SM (Xing 09).Sterile LandReally nothing in?Fertile SoilFLAVORDESERT
- Page 1: Neutrinos as Hot or Warm Dark Matte
- Page 5 and 6: As T ~ a few MeV in the Universe, t
- Page 7 and 8: CB Must Be ThereToday’s matter &
- Page 9 and 10: ExampleSalient feature: the cross s
- Page 11 and 12: Cosmic anti-Background?Overdensitie
- Page 13 and 14: Hamann et al, arXiv:1006.5276; 1108
- Page 15 and 16: OverdensitiesGravitational clusteri
- Page 17 and 18: keV sterile Dark MatterThere is no
- Page 19 and 20: keV sterile Dark MatterProduction:
- Page 21 and 22: Detection in the LabThe same method
- Page 23 and 24: Summary----- CB: a test of cosmolog
A Naïve (Why Not) PictureHow dark is dark?HOTWARMCOLD<strong>Hot</strong> dark matter: CB is guaranteed but not significant.Cold dark matter: most likely? At present most popular.<strong>Warm</strong> dark matter: suppress the small-scale structures.
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