Flavor Symmetry for Quarks and Leptons

Details Flavor Symmetry for Quarks and Leptons Flavor Symmetry for Quarks and Leptons

2007-06-08

arxiv.org/abs/0706.1186v5

JHEP0709:110,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages latex. More typos corrected

Scientific paper

10.1088/1126-6708/2007/09/110

Present data on neutrino masses and mixing favor the highly symmetric tribimaximal neutrino mixing matrix which suggests an underlying flavor symmetry. A systematic study of non-abelian finite groups of order $g \leq 31$ reveals that tribimaximal mixing can be derived not only from the well known tetrahedral flavor symmetry $T \equiv A_4$, but also by using the binary tetrahedral symmetry $T^{'} \equiv SL_2(F_3)$ which does not contain the tetrahedral group as a subgroup. $T^{'}$ has the further advantage that it can also neatly accommodate the quark masses including a heavy top quark.

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