Universal Neutrino Mass Hierarchy and Cosmological Baryon Number Asymmetry
arXiv:hep-ph/0406047 · doi:10.1103/PhysRevD.70.071302
Abstract
We conjecture that three light Majorana neutrinos and their right-handed counterparts may have a universal geometric mass hierarchy. Incorporating this phenomenological conjecture with the Fritzsch texture of lepton mass matrices in a simple seesaw mechanism, we show that it is possible to simultaneously account for current neutrino oscillation data and the cosmological baryon number asymmetry via leptogenesis.
arXiv commentRevTex 8 pages (1 PS figure included). Fig. 1 changed. Accepted for publication in PRD
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