A Neutrino Mass Matrix with Vanishing $μ$--$μ$ and $τ$--$τ$ Entries

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/140372We revisit our earlier proposal for the form of the neutrino mass matrix: a two-zero ansatz wherein the CP-violating PMNS phase $δ$ plays a surprisingly important role. We review its observable consequences and show how our ansatz follows from a softly-broken symmetry (muon number minus tau lepton number) in a see-saw model with three Higgs doublets.7 pages, harvmacHigh Energy Physics - PhenomenologyA Neutrino Mass Matrix with Vanishing $μ$--$μ$ and $τ$--$τ$ Entriestext