29 September 2015 to 2 October 2015
DESY Hamburg
Europe/Berlin timezone

Affleck-Dine baryogenesis after D-term inflation and a solution to the baryon-DM coincidence problem

1 Oct 2015, 15:15
15m
Seminar room 2 (DESY Hamburg)

Seminar room 2

DESY Hamburg

Speaker

Mr Masaki Yamada (Institute for Cosmic Ray Research, University of Tokyo)

Description

We investigate the Affleck-Dine baryogenesis after D-term inflation with a positive Hubble-induced mass term for a B-L flat direction. It stays at a large field value during D-term inflation, and just after inflation ends it starts to oscillate around the origin of the potential due to the positive Hubble-induced mass term. The phase direction is kicked by higher-dimensional Kahler potentials to generate the B-L asymmetry. We also provide a D-term inflation model which naturally explain the coincidence of the energy density of baryon and dark matter.

Primary author

Mr Masaki Yamada (Institute for Cosmic Ray Research, University of Tokyo)

Co-author

Prof. Masahiro Kawasaki (Institute for Cosmic Ray Research, University of Tokyo)

Presentation Materials