Invisibles25 Workshop

A new modular mechanism for neutrino masses from low-scale seesaw

1 Sept 2025, 11:55

5m

500/1-001 - Main Auditorium (CERN)

Talk Neutrinos

Speaker

Matteo Parriciatu (Università degli Studi Roma Tre)

Description

In the presence of a finite modular flavour symmetry, fermion mass hierarchies may be generated by a slight deviation of the modulus from a symmetric point. This small parameter governing charged-lepton mass hierarchies may also be responsible for the breaking of lepton number in a symmetry-protected low-scale seesaw. In this talk, I will illustrate the implementation and the phenomenological implications of this connection.