Minimal seesaw model with tri/bi-maximal mixing and leptogenesis

Sanghyeon Chang; Sin Kyu Kang; Kim Siyeon

doi:10.1016/j.physletb.2004.06.104

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arXiv · hep-ph/0404187

Minimal seesaw model with tri/bi-maximal mixing and leptogenesis

Sanghyeon Chang·Sin Kyu Kang·Kim Siyeon

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Abstract

We examine minimal seesaw mechanism in which the masses of light neutrinos are described with tri/bi-maximal mixing in the basis where the charged-lepton Yukawa matrix and heavy Majorana neutrino mass matrix are diagonal. We search for all possible Dirac mass textures which contain at least one zero entry in $3 \times 2$ matrix and evaluate the corresponding lepton asymmetries. We present the baryon asymmetry in terms of a single low energy unknown, a Majorana CP phase to be clued from neutrinoless double beta decay.

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Sanghyeon Chang, Sin Kyu Kang, Kim Siyeon. 2004-07-26. Minimal seesaw model with tri/bi-maximal mixing and leptogenesis. https://doi.org/10.1016/j.physletb.2004.06.104

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