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

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arxiv 1310.8459 v1 pith:EBLAZLQY submitted 2013-10-31 hep-ph astro-ph.COgr-qc

G. Lambiase , S. Mohanty , A.R. Prasanna This is my paper · ORCID
classification hep-phastro-ph.COgr-qc
keywords reviewasymmetrybackgroundbaryonfieldgravitationalleptogenesislepton
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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.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Constraints on R\'{e}nyi Entropy through Primordial Big-Bang Nucleosynthesis and Baryogenesis

    physics.gen-ph 2025-07 reject novelty 5.0 of 10

    Rényi entropy cosmology constrained by BBN: helium and deuterium allow overlapping λ ranges near 10^-85, lithium requires disjoint values, so the constant-λ model cannot solve the lithium problem.

  2. Asymmetries from a charged memory-burdened PBH

    hep-ph 2024-12 reject novelty 3.0 of 10

    A parameter-space scan shows that very large curvature-current couplings can fit the baryon asymmetry and dark matter abundance, while the electric charge of the black hole plays no role in the mechanism.

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