Speaker
Dr
Shinta Kasuya
(Kanagawa University)
Description
We investigate the variant of the Affleck-Dine mechanism in high-scale inflation. The scenario utilizes multiple flat directions, which is generally present in the MSSM. One flat direction creates baryon asymmetry of the universe, while Q balls from another direction can be the dark matter in the gauge-mediated supersymmetry breaking. Isocurvature fluctuations are suppressed by the fact that the Affleck-Dine field stays at around the Planck scale during inflation. We find that the dark matter Q balls can be detected in IceCube-like experiments in the future, which is the smoking gun of the Affleck-Dine mechanism.
Primary author
Dr
Shinta Kasuya
(Kanagawa University)
