Non-thermal leptogenesis and gravitino problem in inflaton decay
High Energy Physics - Phenomenology
2009-12-15 v1
Abstract
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.
Keywords
Cite
@article{arxiv.0712.1430,
title = {Non-thermal leptogenesis and gravitino problem in inflaton decay},
author = {Grigoris Panotopoulos},
journal= {arXiv preprint arXiv:0712.1430},
year = {2009}
}
Comments
11 pages, 1 figure