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

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, $f(R,T)=R+\alpha T+\beta T^2$ and $f(R,T)=R+\mu R^2+\lambda T$, 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.

6 pages, 2 figures

References in corpus (9)

• f(R,T) gravity
• Cosmological solutions from Induced Matter Model applied to 5D f(R,T) gravity and the shrinking of the extra coordinate
• Violation of First Law of Thermodynamics in f(R,T) Gravity
• Baryogenesis in $f(R)$-Theories of Gravity
• Gauss-Bonnet Gravitational Baryogenesis
• $f(T)$ gravitational baryogenesis
• Late time cosmological approach in mimetic $f(R,T)$ gravity
• Loop Quantum Cosmology Gravitational Baryogenesis
• Holographic dark energy in Brans-Dicke theory with logarithmic form of scalar field

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• The gravitational baryogenesis and a new higher-order extended uncertainty principle with parameter adaptability for the minimum length
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• Scalar-tensor baryogenesis: a scalar-tensor completion of gravitational baryogenesis
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