Speaker
Emanuelle Pinsard
(Clermont)
Description
Heavy neutral leptons are well motivated SM extensions and their presence induces modifications in the lepton mixing matrix, including new Dirac and Majorana CP violating phases.
In this presentation we discuss the role of the heavy neutral fermions and the new CP violating phases in Higgs and Z-boson lepton flavour violating decays.
We further study the associated decay CP asymmetries. Among the many interesting phenomenological implications it is worth noticing that the $Z \to \mu \tau$ decay rates are within reach of FCC-ee, with associated CP asymmetries that can potentially reach up to 20% – 30%.
Primary author
Emanuelle Pinsard
(Clermont)
