Speaker
Michal Malinsky
Description
The flipped SU(5) unification represents one of the rare cases in which the Witten's loop mechanism for the radiative RH neutrino mass generation may be implemented in a potentially realistic manner. It was shown recently that, in a large part of the parameter space, the tight flavour structure of the minimal model of this kind yields relatively strong constraints on the principal smoking-gun observables of this setting, namely, the partial proton decay widths with electrons and muons in the final state. We shall present a new study of the absolute size of the Witten's effect in the minimal flipped SU(5) scenario and comment on its impact on the relevant physics.
