Massive sterile neutrinos as warm Dark Matter

Details Massive sterile neutrinos as warm Dark Matter Massive sterile neutrinos as warm Dark Matter

2000-09-07

arxiv.org/abs/hep-ph/0009083v3

Astropart.Phys.16:339-344,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 1 figure, references and acknowledgement added; discussion on SN bound updated, matches version in Astropart.phys

Scientific paper

10.1016/S0927-6505(01)00115-3

We show that massive sterile neutrinos mixed with the ordinary ones may be produced in the early universe in the right amount to be natural warm dark matter particles. Their mass should be below 40 keV and the corresponding mixing angles sin^2 2\theta > 10^{-11} for mixing with \nu_\mu or \nu_\tau, while mixing with \nu_e is slightly stronger bounded with mass less than 30 keV.

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