Non-thermal leptogenesis with strongly hierarchical right handed neutrinos
arXiv:0704.3048 · doi:10.1103/PhysRevD.76.013005
Abstract
Assuming the Dirac-type neutrino masses m_D are related to quark or charged lepton masses, neutrino oscillation data indicate that right handed neutrino masses are in general strongly hierarchical. In particular, if m_D is similar to the up-type quark masses, the mass of the lightest right handed neutrino M_1<~10^6 GeV. We show that non-thermal leptogenesis by inflaton decay can yield sufficient baryon asymmetry despite this constraint, and discuss how the asymmetry is correlated with the low energy neutrino masses and CP-violating phases.
7 pages, 5 figures. v2: added some comments and references, v3: minor corrections and additions, v4: a typo corrected, published version
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Cited by in corpus (7)
- Non-Minimal Chaotic Inflation, Peccei-Quinn Phase Transition and non-Thermal Leptogenesis
- SO(10) unified models and soft leptogenesis
- Leptogenesis and Neutrino Masses in an Inflationary SUSY Pati-Salam Model
- CMB imprints of high scale non-thermal leptogenesis
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- Inflation and Unification
- Non-thermal leptogenesis with distinct CP violation and minimal dark matter