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arXiv · 1502.00715

IceCube potential for detecting Q-ball dark matter in gauge mediation

Shinta Kasuya·Masahiro Kawasaki·Tsutomu T. Yanagida
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Abstract

We study Q-ball dark matter in gauge-mediated supersymmetry breaking, and seek the possibility of detection in the IceCube experiment. We find that the Q balls would be the dark matter in the parameter region different from that for gravitino dark matter. In particular, the Q ball is a good dark matter candidate for low reheating temperature, which may be suitable for the Affleck-Dine baryogenesis and/or nonthermal leptogenesis. Dark matter Q balls are detectable by IceCube-like experiments in the future, which is the peculiar feature compared to the case of gravitino dark matter.

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Shinta Kasuya, Masahiro Kawasaki, Tsutomu T. Yanagida. 2015-02-03. IceCube potential for detecting Q-ball dark matter in gauge mediation. https://doi.org/10.1093/ptep/ptv056

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