Gravitational Leptogenesis
arXiv:astro-ph/0611905 · doi:10.1088/1475-7516/2007/12/008
Abstract
We introduce a dimension five CP violating coupling between the Ricci scalar and fermions. This operator splits the energy level between neutrinos and anti-neutrinos and can generate a lepton-asymmetry in the the radiation era if heavy Majorana neutrinos decouple at the GUT scale. This operator can also generate a lepton asymmetry during warm inflation if the light neutrinos have a Majorana mass m_ν\simeq 0.25 eV which is observable in double beta decay experiments.
4 pages, no figures
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Cited by in corpus (12)
- Modified Friedmann Equation from Nonminimally Coupled Theories of Gravity
- Warm baryogenesis
- Primordial magnetic fields and gravitational baryogenesis in nonlinear electrodynamics
- Environmental CPT Violation in an Expanding Universe in String Theory
- CPT-Violating Leptogenesis induced by Gravitational Defects
- Leptogenesis by curvature coupling of heavy neutrinos
- Gravitational leptogenesis, C, CP and strong equivalence
- Consequences of f(R)-theories of gravity on gravitational leptogenesis
- Flavour effects in gravitational leptogenesis
- Neutrinos in the Early Universe, Kalb-Ramond Torsion and Matter-Antimatter Asymmetry
- Gravitational wave complementarity and impact of NANOGrav data on gravitational leptogenesis: cosmic strings
- Leptogenesis in exponential gravity model