Baryogenesis from Hawking Radiation
High Energy Physics - Phenomenology
2015-01-06 v3 High Energy Physics - Theory
Abstract
We show that in the presence of a chemical potential, black hole evaporation generates baryon number. If the inflaton or Ricci scalar is derivatively coupled to the B-L current, the expansion of the universe acts as a chemical potential and splits the energy levels of particles and their anti-particles. The asymmetric Hawking radiation of primordial black holes can thus be used to generate a B-L asymmetry. If dark matter is produced by the same mechanism, the coincidence between the mass density of visible and dark matter can be naturally explained.
Keywords
Cite
@article{arxiv.1404.0113,
title = {Baryogenesis from Hawking Radiation},
author = {Anson Hook},
journal= {arXiv preprint arXiv:1404.0113},
year = {2015}
}
Comments
12 pages, 3 figures. Journal version