We investigate the Affleck-Dine baryogenesis after D-term inflation with apositive Hubble-induced mass term for a B-L flat direction. It stays at a largefield value during D-term inflation, and just after inflation ends it starts tooscillate around the origin of the potential due to the positive Hubble-inducedmass term. The phase direction is kicked by higher-dimensional Kahlerpotentials to generate the B-L asymmetry. The scenario predicts nonzerobaryonic isocurvature perturbations, which would be detected by futureobservations of CMB fluctuations. We also provide a D-term inflation modelwhich naturally explain the coincidence of the energy density of baryon anddark matter.
展开▼
