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

초록

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 x 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. (C) 2004 Elsevier B.V. All rights reserved.

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