A minimal seesaw model with mu-tau symmetry
Abstract
We analyse a flavour model for a lepton sector which is based on type I seesaw mechanism, a Z2 symmetry for lepton flavours, a mu-tau interchange symmetry and a CP symmetry. This model fits well the data of neutrino mass squared differences and oscillation angles. The model predicts an overall neutrino mass scale for normal and inverted neutrino mass hierarchy and the effective mass mbeta, which is used in the neutrinoless double beta decay.
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