Perturbative and Nonperturbative Contributions to a Simple Model for Baryogenesis
High Energy Physics - Phenomenology
2009-11-11 v2
Abstract
Single field baryogenesis, a scenario for Dirac leptogenesis sourced by a time-dependent scalar condensate, is studied. We compare the creation of the charge asymmetry by the perturbative decay of the condensate with the nonperturbative decay, a process of particle production commonly known in the context of inflation as preheating. The nonperturbative channel dominates when the coupling of the scalar field to leptons is sufficiently large.
Cite
@article{arxiv.hep-ph/0603230,
title = {Perturbative and Nonperturbative Contributions to a Simple Model for Baryogenesis},
author = {K. R. S. Balaji and Bjorn Garbrecht},
journal= {arXiv preprint arXiv:hep-ph/0603230},
year = {2009}
}
Comments
11 pages, 3 figures