Leptogenesis with Friedberg-Lee Symmetry
High Energy Physics - Phenomenology
2010-05-27 v1
Abstract
We consider the 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.
Cite
@article{arxiv.1004.1241,
title = {Leptogenesis with Friedberg-Lee Symmetry},
author = {Takeshi Araki and C. Q. Geng},
journal= {arXiv preprint arXiv:1004.1241},
year = {2010}
}
Comments
Talk given at International Workshop on Dark Matter, Dark Energy and Matter-Antimatter Asymmetry, Hsinchu, Taiwan, 20-21 Nov. 2009, to be published in Modern Physics Letters A, reference added