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

作者:Kasuya Shinta*; Kawakami Etsuko*; Kawasaki Masahiro*
来源:Journal of Cosmology and Astroparticle Physics, 2016, 2016(3): 011.
DOI:10.1088/1475-7516/2016/03/011

摘要

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.

  • 出版日期2016-3