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Sterile neutrinos

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  1. Apr 25, 2014 #1

    Chronos

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    This paper, http://arxiv.org/abs/1404.6160, advances the case for sterile neutrinos as a dark matter candidate.
     
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  3. Apr 25, 2014 #2

    phyzguy

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    Thanks for posting this. Correct me if I'm wrong, but I don't think the eV-scale sterile neutrino proposed here is heavy enough to be a dark matter candidate. Is the thinking that the eV-scale sterile neutrino resolves the discrepancies discussed in this paper and a heavier sterile neutrino is a dark matter candidate, or am I missing the point? Presumably if there are sterile neutrinos, there are at lest three of them.
     
  4. Apr 26, 2014 #3

    Chronos

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    AFAIK only two species of sterile neutrinos have been proposed. One being the ~ 1 ev variety and the other in the kev range. The ~1 ev mass neutrino discussed in this paper would only constitute a modest fraction of the total DM mass budget.
     
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