Gravitational Baryogenesis
High Energy Physics - Phenomenology
2009-09-15 v1 Astrophysics
High Energy Physics - Theory
Abstract
We show that a gravitational interaction between the derivative of the Ricci scalar curvature and the baryon-number current dynamically breaks CPT in an expanding universe and, combined with baryon-number-violating interactions, can drive the universe towards an equilibrium baryon asymmetry that is observationally acceptable.
Keywords
Cite
@article{arxiv.hep-ph/0403019,
title = {Gravitational Baryogenesis},
author = {Hooman Davoudiasl and Ryuichiro Kitano and Graham D. Kribs and Hitoshi Murayama and Paul J. Steinhardt},
journal= {arXiv preprint arXiv:hep-ph/0403019},
year = {2009}
}
Comments
Revtex4, 4 pages, two figures