Coherent Baryogenesis and Nonthermal Leptogenesis: A comparison
High Energy Physics - Phenomenology
2017-08-23 v1
Abstract
We present a new mechanism for baryogenesis: at preheating after inflation fermions acquire a varying mass by their coupling to a time dependent field. Their CP-violating mass matrix can generate a charge asymmetry to be transformed into a lepton asymmetry through decay into standard model particles and heavy Majorana neutrinos. In a concrete model of hybrid inflation we compare ``coherent baryogenesis'' with nonthermal leptogenesis by perturbative decay of the inflation condensates.
Keywords
Cite
@article{arxiv.hep-ph/0410132,
title = {Coherent Baryogenesis and Nonthermal Leptogenesis: A comparison},
author = {Bjorn Garbrecht and Tomislav Prokopec and Michael G. Schmidt},
journal= {arXiv preprint arXiv:hep-ph/0410132},
year = {2017}
}
Comments
6 pages, 2 figures, contribution to the Proceedings of Strong and Electroweak Matter 2004 (SEWM2004), Helsinki, Finland, June 16-19, 2004