TY - JOUR
T1 - Affleck-Dine baryogenesis after D -term inflation and solutions to the baryon-dark matter coincidence problem
AU - Kawasaki, Masahiro
AU - Yamada, Masaki
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/4/8
Y1 - 2015/4/8
N2 - 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 Kähler potentials to generate the B-L asymmetry. The scenario predicts nonzero baryonic isocurvature perturbations, which would be detected by future observations of CMB fluctuations. We also provide a D-term inflation model which naturally explains the coincidence of the energy density of baryon and dark matter.
AB - 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 Kähler potentials to generate the B-L asymmetry. The scenario predicts nonzero baryonic isocurvature perturbations, which would be detected by future observations of CMB fluctuations. We also provide a D-term inflation model which naturally explains the coincidence of the energy density of baryon and dark matter.
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U2 - 10.1103/PhysRevD.91.083512
DO - 10.1103/PhysRevD.91.083512
M3 - Article
AN - SCOPUS:84929190234
VL - 91
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 8
M1 - 083512
ER -