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arXiv · 1808.01917

$f(R,T)$ models applied to Baryogenesis

E. H. Baffou·M. J. S. Houndjo·D. A. Kanfon·I. G. Salako
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Abstract

This paper is devoted to the reproduction of the gravitational baryogenesis epoch in the context of $f(R, T)$ theory of gravity, where $R$ and $T$ are respectively the curvature scalar and the trace of the energy-momentum tensor, respectively. It is assumed a minimal coupling between matter and gravity. In particular we consider the following two models, $f(R,T) = R +αT + βT^2$ and $f(R,T) = R+ μR^2 + λT$, with the assumption that the universe is filled by dark energy and perfect fluid where the baryon to entropy ratio during a radiation domination era is non-zero. We constrain the models with the cosmological gravitational baryogenesis scenario, highlighting the appropriate values of model's parameters compatible with the observation data of the baryon-entropy ratio.

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E. H. Baffou, M. J. S. Houndjo, D. A. Kanfon, I. G. Salako. 2018-08-03. $f(R,T)$ models applied to Baryogenesis. https://doi.org/10.1140/epjc%2Fs10052-019-6559-0

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