Non-thermal leptogenesis and gravitino problem in inflaton decay

Details Non-thermal leptogenesis and gravitino problem in inflaton decay Non-thermal leptogenesis and gravitino problem in inflaton decay

2007-12-10

arxiv.org/abs/0712.1430v1

JHEP 0712:016,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 1 figure

Scientific paper

10.1088/1126-6708/2007/12/016

In the present work we discuss baryon asymmetry in the non-thermal leptogenesis scenario and gravitino cosmology for an unstable gravitino with inflaton decay. We take into account two production mechanisms for gravitino, namely thermal production and inflaton decay. We wish to show in plots the allowed parameter space so that the BBN constraint and the requirement for the right baryon asymmetry are satisfied at the same time. However our analysis shows that it is impossible to achieve both goals simultaneously.

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