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arXiv · 1511.05655

Axino dark matter and baryon number asymmetry production by the Q-ball decay in gauge mediation

Shinta Kasuya·Etsuko Kawakami·Masahiro Kawasaki
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Abstract

We investigate the Q-ball decay into the axino dark matter in the gauge-mediated supersymmetry breaking. In our scenario, the Q ball decays mainly into nucleons and partially into axinos to account respectively for the baryon asymmetry and the dark matter of the universe. The Q ball decays well before the big bang nucleosynthesis so that it is not affected by the decay. We show the region of the parameters which realizes this scenario.

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Shinta Kasuya, Etsuko Kawakami, Masahiro Kawasaki. 2015-11-18. Axino dark matter and baryon number asymmetry production by the Q-ball decay in gauge mediation. https://doi.org/10.1088/1475-7516%2F2016%2F03%2F011

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