4,247 research outputs found
Lepton mixing and seesaw mechanism
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.Comment: 7 pages RevTex4. Revise: comment and reference adde
- …