Asymmetric Preheating
High Energy Physics - Phenomenology
2018-09-26 v4 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We study the generation of the matter-antimatter asymmetry during bosonic preheating, focusing on the sources of the asymmetry. If the asymmetry appears in the multiplication factor of the resonant particle production, the matter-antimatter ratio will grow during preheating. On the other hand, if the asymmetry does not grow during preheating, one has to find out another reason. We consider several scenarios for the asymmetric preheating to distinguish the sources of the asymmetry. We also discuss a new baryogenesis scenario, in which the asymmetry is generated without introducing neither loop corrections nor rotation of a field.
Keywords
Cite
@article{arxiv.1707.05310,
title = {Asymmetric Preheating},
author = {Seishi Enomoto and Tomohiro Matsuda},
journal= {arXiv preprint arXiv:1707.05310},
year = {2018}
}
Comments
10 pages, 3 figures, accepted for publication in IJMPA