Two-loop Radiative Corrections to Neutrino Masses in SU(3)ₗ × U(1)ₙ Gauge Models

الأصل · EN

We have constructed two SU(3)ₗ × U(1)ₙ gauge models with the L′ = Lₑ-Lμ-Lτ symmetry, which accommodate tiny neutrino masses generated by one-loop and two-loop radiative effects. The heavy neutral leptons and heavy charged leptons are employed to specify the lepton triplets in SU(3)ₗ, respectively, accompanied by (ϕ⁰, ϕ-, h+) and (ϕ+, ϕ⁰, h+), where ϕ stands for the standard Higgs scalar and h+ is a key ingredient for radiative mechanisms. From our numerical calculations, we find that both our models are relevant to yield the VO solution to the solar neutrino problem.