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Journal Article

A left-right symmetric flavor symmetry model


Rodejohann,  Werner
Werner Rodejohann - ERC Starting Grant, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;


Xu,  Xunjie
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Rodejohann, W., & Xu, X. (2016). A left-right symmetric flavor symmetry model. The European Physical Journal C: Particles and Fields, 76(3): 138. doi:10.1140/epjc/s10052-016-3992-1.

Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-05BE-F
We discuss flavor symmetries in left-right symmetric theories. We show that such frameworks are a different environment for flavor symmetry model building compared to the usually considered cases. This does not only concern the need to obey the enlarged gauge structure, but also more subtle issues with respect to residual symmetries. Furthermore, if the discrete left-right symmetry is charge conjugation, potential inconsistencies between the flavor and charge conjugation symmetries should be taken care of. In our predictive model based on A4 we analyze the correlations between the smallest neutrino mass, the atmospheric mixing angle and the Dirac CP phase, the latter prefers to lie around maximal values. There is no lepton flavor violation from the Higgs bi-doublet.