Heavy neutral leptons: the role of CPV phases and of LFUV

Tuesday, 21 November 2023 at 11:15

The observation of neutrino oscillations constitutes the first laboratory evidence of Physics beyond the Standard Model. In this talk, after introducing the need for New Physics and the key role of lepton flavour observables, we will focus on two aspects of SM extensions via heavy neutral leptons (HNL).
Firstly we will address the impact of the new leptonic CP violating phases present in such constructions. Then, the underestimated role of LFUV observables as well as EWPO to probe HNL extensions will be discussed.