Neutrino coupling to cosmological background: A review on gravitational Baryo/Leptogenesis

Abstract

In this work we review the theories of origin of matter-antimatter asymmetry in the Universe. The general conditions for achieving baryogenesis and leptogenesis in a CPT conserving field theory have been laid down by Sakharov. In this review we discuss scenarios where a background scalar or gravitational field spontaneously breaks the CPT symmetry and splits the energy levels between particles and anti-particles. Baryon or Lepton number violating processes in proceeding at thermal equilibrium in such backgrounds gives rise to Baryon or Lepton number asymmetry.

62 pages, no figures. Invited review to appear in IJMPD

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• Gauss-Bonnet Gravitational Baryogenesis
• $f(T)$ gravitational baryogenesis
• Updating constraints on f(T) teleparallel cosmology and the consistency with Big Bang Nucleosynthesis
• Primordial Gravitational Wave Signals in Modified Cosmologies
• $f(R,T)$ models applied to Baryogenesis
• Baryon asymmetry from Barrow entropy: theoretical predictions and observational constraints
• Loop Quantum Cosmology Gravitational Baryogenesis
• Baryon Asymmetry from the Generalized Uncertainty Principle
• Gravitational baryogenesis in extended teleparallel theories of gravity
• Constraints on Singular Evolution from Gravitational Baryogenesis
• Constraining $f(T,\mathcal{T})$ Gravity with Gravitational Baryogenesis
• Baryogenesis in $f(R,L_m)$ gravity
• General properties and kinetics of spontaneous baryogenesis
• Gravitational baryogenesis models comparison in f(R) Gravity
• Constraining the Lorentz-Violating Bumblebee Vector Field with Big Bang Nucleosynthesis and Gravitational Baryogenesis
• Effects of modified theories of gravity on neutrino pair annihilation energy deposition near neutron stars
• Gravitational waves and neutrino oscillations in Chern-Simons axion gravity
• Gravitational Baryogenesis in Running Vacuum models
• Neutrino spin oscillations in conformally gravity coupling models and quintessence surrounding a black hole
• Astrophysical neutrino oscillations after pulsar timing array analyses
• BBN Constraints on $f(Q,T)$ Gravity
• Equivalence principle violation at finite temperature in scalar-tensor gravity
• Probing Baryogenesis in $f(Q)$ gravity
• Cosmological evolution of thermal relic particles in $f(R)$ gravity
• Intrinsic problems of gravitational baryogenesis
• Neutrino pair annihilation ($\nu \bar{\nu }\to e^{-}{e}^{+}$) in the presence of quintessence surrounding a black hole
• Gravitational leptogenesis, C, CP and strong equivalence
• Higher-order generalized uncertainty principle applied to gravitational baryogenesis
• Flavour effects in gravitational leptogenesis
• Instability of gravitational baryogenesis with fermions
• Testing theories of Gravity and Supergravity with inflation and observations of the cosmic microwave background
• Gravitational baryogenesis in DGP brane cosmology
• Thermal relics in cosmology with bulk viscosity
• Gravitational charge production
• Baryon asymmetry constraints on Extended Symmetric Teleparallel Gravity
• Thermodynamics of the Primordial Universe
• Friedmann equations from GUP-modified equipartition law
• Radiatively-induced gravitational leptogenesis
• Constraints on Rényi Entropy through Primordial Big-Bang Nucleosynthesis and Baryogenesis
• Matter-antimatter asymmetry in generalized coupling theories
• Constraining Zero-Point Length from Gravitational Baryogenesis
• Probing Leptogenesis and Pre-BBN Universe with Gravitational Waves Spectral Shapes
• Gravitational wave complementarity and impact of NANOGrav data on gravitational leptogenesis: cosmic strings