Neutrino mass and mixing in U(1)B-L extension with Σ(18) symmetry

We propose a renormalizable U(1)(B-L) extension of the Standard model based on Sigma(18) symmetry which accommodates the observed neutrino mass and mixing pattern. The smallness of the active neutrino masses and the normal neutrino mass ordering are induced by the type-I seesaw mechanism at the first order of perturbation theory. The effective neutrino mass governing the neutrinoless double beta decay is predicted to be < m(ee)> is an element of (2.40, 3.60) meV, JCP is an element of (-0.034, -0.024) which are well consistent with the recent experimental data.

Automated summary

The proposed U(1)(B-L) extension of the Standard model based on Sigma(18) symmetry explains the observed neutrino mass and mixing pattern through the type-I seesaw mechanism. The predicted effective neutrino mass for neutrinoless double beta decay falls within the range (2.40, 3.60) meV, JCP within (-0.034, -0.024), in good agreement with recent experimental data.