Alternative minimal U(1)(B-L)

We provide a minimal alternative gauged U(1)(B-L) model in which three right-handed neutrinos with charges of (5, -4, -4) and only one B - L Higgs field with charge 1 are introduced. Consistent active neutrino masses and mixings can be obtained if the Z(2) symmetry on two of the right-handed neutrinos is introduced. It predicts two heavy degenerate right-handed neutrinos, which may realize resonant leptogenesis scenario, and one relatively light sterile neutrino, which is a good dark matter candidate. (C) 2021 The Author(s). Published by Elsevier B.V.

Automated summary

This model introduces three right-handed neutrinos with different charges and a B-L Higgs field, and consistent active neutrino masses and mixings can be obtained by introducing a Z(2) symmetry on two of the right-handed neutrinos. The model predicts two relatively heavy degenerate right-handed neutrinos and one relatively light sterile neutrino, which may be a good dark matter candidate.