Gravitational Baryogenesis

Preprint

2 March 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0403019

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

GRAVITATIONAL BARYOGENESIS
GRAVITATIONAL INTERACTION
CURRENT DYNAMICALLY
BARYON NUMBER
RICCI SCALAR
ASYMMETRY
BREAKS

All Related Versions

Version 1, 2004-03-02, ArXiv
Published version: Physical Review Letters, 93 (20), 201301.

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