Higgsino and Wino Dark Matter from Q-ball Decay in Affleck-Dine Baryogenesis

Details Higgsino and Wino Dark Matter from Q-ball Decay in Affleck-Dine Baryogenesis Higgsino and Wino Dark Matter from Q-ball Decay in Affleck-Dine Baryogenesis

2001-10-04

arxiv.org/abs/hep-ph/0110072v2

Phys.Lett.B525:143-149,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, LaTeX, 6 figures, version accepted for publication in PLB

Scientific paper

10.1016/S0370-2693(01)01412-5

We claim that the Higgsino-like and wino-like neutralinos can be good dark matter candidates if they are produced by the late time decay of Q-ball, which is generally formed in Affleck-Dine baryogenesis. The late time decays of the Q-balls into these LSP's and subsequent pair annihilations of the LSP's naturally lead to the desired mass density of dark matter. Furthermore, these dark matter can be much more easily detected by the dark-matter search experiments than the standard bino-like dark matter.

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