Leptogenesis with Friedberg-Lee Symmetry

Details Leptogenesis with Friedberg-Lee Symmetry Leptogenesis with Friedberg-Lee Symmetry

2010-04-08

arxiv.org/abs/1004.1241v1

Mod.Phys.Lett.A25:1004-1013,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at International Workshop on Dark Matter, Dark Energy and Matter-Antimatter Asymmetry, Hsinchu, Taiwan, 20-21 Nov.

Scientific paper

10.1142/S0217732310000162

We consider the $\mu-\tau$ symmetric Friedberg-Lee (FL) symmetry for the neutrino sector and show that a specific FL translation leads to the tribimaximal mixing pattern of the Maki-Nakagawa-Sakata (MNS) matrix. We also apply the symmetry to the type-I seesaw framework and address the baryon asymmetry of the universe through the leptogenesis mechanism. We try to establish a relation between the net baryon asymmetry and CP phases included in the MNS matrix.

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