1211.4743 (Shinta Kasuya et al.)

Revisiting the gravitino dark matter and baryon asymmetry from Q-ball
decay in gauge mediation    [PDF]

Shinta Kasuya, Masahiro Kawasaki, Masaki Yamada

We reinvestigate the scenario that the amount of the baryons and the gravitino dark matter is naturally explained by the decay of the Q balls in the gauge-mediated SUSY breaking. Equipped by the more correct decay rates into gravitinos and baryons recently derived, we find that the scenario with the direct production of the gravitino dark matter from the Q-ball decay works naturally.

View original: http://arxiv.org/abs/1211.4743