Probing Baryogenesis in $f(Q)$ gravity

Abstract

The origin of matter domination in the Universe is one of the most exciting open puzzles in particle physics and cosmology. Despite many theoretical developments, the actual reason behind baryon-antibaryon asymmetry is still unknown. Our aim here is to examine this phenomenon in the framework of modified gravity theories, which have impressively elucidated the contemporary accelerated expansion of the universe as well as the early phase. Consequently, this letter sets its sights on the task of constraining a specific variant of modified gravity, namely, $f(Q)$ gravity, in conjunction with gravitational baryogenesis. The Power Law model and recently proposed DGP-like $f(Q)$ models are considered to find the baryon-to-entropy ratio and compare them with the observed value, that is $n_B/s=9.42\times 10^{-11}$. Furthermore, we impose constraints on the additional degrees of freedom introduced by this modified theory of gravity.

arXiv commentEPL published version

References in corpus (15)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• The origin of the matter-antimatter asymmetry
• Recent Progress in Baryogenesis
• Cosmology in $f(Q)$ geometry
• Teleparallel Palatini theories
• Gravitational Baryogenesis
• What Is The BBN Prediction for the Baryon Density and How Reliable Is It?
• Neutrino coupling to cosmological background: A review on gravitational Baryo/Leptogenesis
• Gravitational Baryogenesis in Non-Minimal Coupled $f(R,T)$ Gravity
• Loop Quantum Cosmology Gravitational Baryogenesis
• $H_0$ Tension in Torsion-based Modified Gravity
• Leptogenesis from Spin-Gravity Coupling Following Inflation
• Statefinder Analysis of Symmetric Teleparallel Cosmology
• DGP and DGPish cosmologies from $f(Q)$ actions

Cited by in corpus (4)

• Modified $f(Q)$ gravity models and their cosmological consequences
• Chebyshev cosmography in the framework of extended symmetric teleparallel theory
• Gravitational baryogenesis beyond the spectator approximation
• Beyond the Cosmological Constant: Breaking the Geometric Degeneracy of $f(Q)$ cosmology via Redshift-Space Distortions