$f(R,T)$ 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.

arXiv comment6 pages, 2 figures

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• Generalized Gravitational Baryogenesis of Well-Known $f(T,T_G)$ and $f(T,B)$ Models
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• Constraining $f(T,\mathcal{T})$ Gravity with Gravitational Baryogenesis
• Baryogenesis in $f(R,L_m)$ gravity
• Constraining the Lorentz-Violating Bumblebee Vector Field with Big Bang Nucleosynthesis and Gravitational Baryogenesis
• A dynamical system representation of generalized Rastall gravity
• Higher-order generalized uncertainty principle applied to gravitational baryogenesis
• Gravitational baryogenesis in non-minimal kinetic coupling model
• Cosmological effects on $f(\bar{R},\bar{T})$ gravity through a non-standard theory
• Collapsing scenarios of K-essence generalized Vaidya spacetime under $f(\bar{R},\bar{T})$ gravity
• Bouncing cosmological models in a functional form of F(R) gravity
• Baryogenesis in quantum fluctuation modified gravity
• Thermal leptogenesis in anisotropic cosmology
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• Baryon asymmetry from higher-order matter contributions in gravity
• Gravitational baryogenesis in $f(T,L_m)$ gravity
• Scalar-tensor baryogenesis: a scalar-tensor completion of gravitational baryogenesis
• Self-similar cosmological solutions in f(R,T) gravity theory
• Gravitational baryogenesis of cosmological constant dominated universe
• Matter-antimatter asymmetry in generalized coupling theories
• Gravitational baryogenesis in $F(R)$ gravity's rainbow
• Gravitational baryogenesis beyond the spectator approximation