Speaker: Harald Fritzsch (University of Munich)
Title: Flavor Symmetries, Quark Masses, Neutrino Masses and
Neutrino Oscillations
Abstract:
In the Standard Model there are 28 fundamental constants, like
the fine structure constant. 22 of these constants are given by
the lepton and quark masses, and the related flavor mixing
parameters. In the SO(10) Grand Unified Theory one can arrange
the fermions such that simple reflection symmetries determine
the flavor mixing parameters in terms of the mass eigenvalues.
I will discuss the success of such a model for the quarks. I
apply the same idea to the leptons. Using the experimental
values for the angles, describing the neutrino oscillations,
I can calculate the neutrino masses. The are very small. The
mass of the third neutrino is 0.05 eV. It will be very difficult
to find an effect in the neutrinoless double beta decay. One
prediction can soon be checked in reactor neutrino experiments.