PLANCK2025 - The 27th International Conference From the Planck Scale to the Electroweak Scale

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

27 May 2025, 15:40

20m

Spazio 35 (Centro Culturale Altinate San Gaetano)

Neutrinos

Speaker

Matteo Parriciatu (Università Roma Tre e INFN Sezione 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.