A Higgs Doublet + Higgs Singlet Scheme with Negative Kinetic Term for Neutrino Mass Generation

Understand

In this paper, we propose a scheme for neutrino mass generation.

• A Higgs singlet is introduced in the Standard Model of particle physics (SM).
• All of this new singlet and the charged and neutral Higgs fields in the original Higgs doublet are assumed to have nonzero vacuum expectation values (VEVs).
• The normal hierarchy of neutrino masses is evidently preferred in our scheme.