Leptogenesis in Neutrino Textures with Two Zeros

Details Leptogenesis in Neutrino Textures with Two Zeros Leptogenesis in Neutrino Textures with Two Zeros

2003-05-02

arxiv.org/abs/hep-ph/0305014v1

JHEP 0307 (2003) 025

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex file with 20 pages, 6 eps figures

Scientific paper

10.1088/1126-6708/2003/07/025

The leptogenesis is studied in the neutrino textures with two zeros, which reduce the number of independent phases of the CP violation. The phenomenological favored neutrino textures with two zeros are decomposed into the Dirac neutrino mass matrix and the right-handed Majorana one in the see-saw mechanism. Putting the condition to suppress the $\mu \to e\gamma$ decay enough, the texture zeros of the Dirac neutrino mass matrix are fixed in the framework of the MSSM with right-handed neutrinos. These textures have only one CP violatig phase. The magnitude of each entry of the Dirac mass matrix is determined in order to explain the baryon asymmetry of the universe by solving the Boltzman equations. The relation between the leptogenesis and the low energy CP violation is presented in these textures.

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