Lepton mixing and seesaw mechanism

Details Lepton mixing and seesaw mechanism Lepton mixing and seesaw mechanism

2005-03-20

arxiv.org/abs/hep-ph/0503197v4

Int.J.Mod.Phys. A21 (2006) 3015-3020

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages RevTex4. Revise: comment and reference added

Scientific paper

10.1142/S0217751X06031296

In the context of a typical model for fermion mass matrices, possibly based on the horizontal U(2) symmetry, we explore the effect of the type II seesaw mechanism on lepton mixings. We find that the combined contribution of type I and type II terms is able to explain the large but not maximal 1-2 mixing and the near maximal 2-3 mixing, while the 1-3 mixing angle is predicted to be small.

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