Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8197593 | Physics Letters B | 2007 | 6 Pages |
Abstract
We consider an effective Majorana neutrino mass operator with the Friedberg-Lee symmetry; i.e., it is invariant under the transformation ναâνα+z (for α=e,μ,Ï) with z being a space-time independent constant element of the Grassmann algebra. We show that this new flavor symmetry can be broken in such a nontrivial way that the lightest neutrino remains massless but an experimentally-favored neutrino mixing pattern is achievable. In particular, we get a novel prediction for the unknown neutrino mixing angle θ13 in terms of two known angles: sinθ13=tanθ12|(1âtanθ23)/(1+tanθ23)|. The model can simply be generalized to accommodate CP violation and be combined with the seesaw mechanism.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Shu Luo, Zhi-zhong Xing,