| Autor: |
Hahn-Woernle, F., Plumacher, M. |
| Rok vydání: |
2008 |
| Předmět: |
|
| Zdroj: |
Nucl.Phys.B806:68-83,2009 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.nuclphysb.2008.07.032 |
| Popis: |
We study the evolution of a cosmological baryon asymmetry in leptogenesis when the right-handed neutrinos are produced in inflaton decays. By performing a detailed numerical study over a broad range of inflaton-neutrino couplings we show that the resulting asymmetry can be larger by two orders of magnitude or more than in thermal leptogenesis, if the reheating temperature T_{RH} is of the same order as the right-handed neutrino mass M_1. Hence, the lower limit on the baryogenesis temperature obtained in thermal leptogenesis can be relaxed accordingly. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
