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This paper, http://arxiv.org/abs/1404.6160, advances the case for sterile neutrinos as a dark matter candidate.
Sterile Neutrino Dark Matter: Case Advanced
- Thread starter Chronos
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The paper advances the case for sterile neutrinos as a dark matter candidate, suggesting a connection to unresolved discrepancies in current models. However, concerns are raised about the viability of the eV-scale sterile neutrino as a sufficient dark matter candidate due to its relatively low mass. The discussion highlights the possibility that a heavier sterile neutrino might be necessary to fulfill dark matter requirements. Additionally, the existence of multiple sterile neutrino species is noted, with only two types currently proposed: one around 1 eV and another in the keV range. Overall, the conversation emphasizes the need for further clarification on the role of eV-scale sterile neutrinos in dark matter theories.