Small-scale structure formation properties of chilled sterile neutrinos as dark matter

Details Small-scale structure formation properties of chilled sterile neutrinos as dark matter Small-scale structure formation properties of chilled sterile neutrinos as dark matter

2008-01-22

arxiv.org/abs/0801.3470v2

Phys.Rev.D77:105004,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 3 figures

Scientific paper

10.1103/PhysRevD.77.105004

We calculate the free-streaming length and the phase space density of dark-matter sterile neutrinos produced from decays, at the electroweak scale, of a gauge singlet in the Higgs sector. These quantities, which depend on the dark-matter production mechanism, are relevant to the study of small-scale structure formation and may be used to constrain or rule out dark-matter candidates.

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