On neutrino masses via CPT violating Higgs interaction in the Standard Model

Abstract

The Lorentz invariant CPT violation by using non-local interactions is naturally incorporated in the Higgs coupling to neutrinos in the Standard Model, without spoiling the basic SU(2)L× U(1) gauge symmetry. The neutrino--antineutrino mass splitting is thus realized by the mechanism which was proposed recently, assuming the neutrino masses to be predominantly Dirac-type in the Standard Model.

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