Gravitational baryogenesis |
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| Authors: | Davoudiasl Hooman Kitano Ryuichiro Kribs Graham D Murayama Hitoshi Steinhardt Paul J |
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| Affiliation: | School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540, USA. |
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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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