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arXiv · hep-ph/0403019

Gravitational Baryogenesis

Hooman Davoudiasl·Ryuichiro Kitano·Graham D. Kribs·Hitoshi Murayama·Paul J. Steinhardt
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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.

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Hooman Davoudiasl, Ryuichiro Kitano, Graham D. Kribs, Hitoshi Murayama, Paul J. Steinhardt. 2004-03-02. Gravitational Baryogenesis. https://doi.org/10.1103/physrevlett.93.201301

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