Sayantan Choudhury, Supratik Pal
We have studied extensively phenomenological implications in a specific model
of brane inflation driven by background supergravity, via thermal history of
the universe and leptogenesis pertaining to the particle physics phenomenology
of the early universe. Using the one loop corrected inflationary potential we
have investigated for the analytical expression as well as the numerical
estimation for brane reheating temperature for standard model particles. This
results in some novel features of reheating from this type of inflation which
have serious implications in the production of heavy Majorana neutrinos needed
for leptogenesis through the reheating temperature. We have also derived the
expressions for the gravitino abundance during reheating and radiation
dominated era. We have further estimated different parameters at the epoch of
phase transition and revealed their salient features. At the end we have
explicitly given an estimate of the amount of CP violation through the
effective CP phase which is related to baryon asymmetry as well as gravitino
dark matter abundance.
View original:
http://arxiv.org/abs/1108.5676
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