Flavor Mixing, Neutrino Masses and Neutrino Oscillations

by Prof. Harald Fritzsch

Tuesday 8 Oct 2019, 16:15 → 18:15 Europe/Berlin

The mass matrices of the quarks and leptons have three "texture zeros", as expected e.g. in the SO(10) Grand Unified Theory. The flavor mixing angles are functions of the fermion masses. For the quarks the calculated mixing angles are in good agreement with the experimental results.

The small neutrino masses are due to the "see-saw"-mechanism. We calculate the values of the three Majorana neutrino masses: 1 meV - 12 meV - 50 meV. The effective neutrino mass, relevant fo the neutrinoless double beta decay, is about 5 meV, i.e. 25 times smaller than the present limit from the experiments.