Gravitational Baryogenesis

Details Gravitational Baryogenesis Gravitational Baryogenesis

2004-03-02

arxiv.org/abs/hep-ph/0403019v1

Phys.Rev.Lett.93:201301,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revtex4, 4 pages, two figures

Scientific paper

10.1103/PhysRevLett.93.201301

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.

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