Warm axino dark matter with Ωb-ΩDM

Details Warm axino dark matter with Ωb-ΩDM Warm axino dark matter with Ωb-ΩDM

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1166..126s&link_type=abstract

SOURCES AND DETECTION OF DARK MATTER AND DARK ENERGY IN THE UNIVERSE: Proceedings of the 8th UCLA Symposium. AIP Conference Pro

Physics

Dark Matter, Cosmology, Baryons

Scientific paper

We show that the Ωb-ΩDM coincidence can naturally be explained in a framework where axino is dark matter which is predominantly produced in nonthermal processes involving decays of Q-balls formed in Affleck-Dine mechanism. In this approach, the similarity of Ωb and ΩDM is a direct consequence of the (sub-)GeV scale of the mass of the axino. In the case that the formed Q-ball carries leptonic charge only (L-ball), produced axinos become warm dark matter suitable for the solution of the missing satellite problem and the cusp problem.

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