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arXiv · 1709.06996

Anisotropy effects on Baryogenesis in $f(R)$-Theories of Gravity

Ali Aghamohammadi·Hossien Hossienkhani·Khaled Saaidi
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Abstract

We study the $f(R)$ theory of gravity in an anisotropic metric and its effect on the baryon number to entropy ratio. The mechanism of gravitational baryogenesis based on the CPT-violating gravitational interaction between derivative of the Ricci scalar curvature and the baryon-number current is investigated in the context of the $f(R)$ gravity. The gravitational baryogenesis in the Bianchi type I universe is examined. We survey the effect of anisotropy of the universe on the baryon asymmetry from point of view the $f(R)$-theories of gravity and its effect on $n_{b}/s$ for radiation dominant regime.

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Ali Aghamohammadi, Hossien Hossienkhani, Khaled Saaidi. 2018-04-06. Anisotropy effects on Baryogenesis in $f(R)$-Theories of Gravity. https://doi.org/10.1142/s0217732318500724

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