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arXiv · hep-ph/9301245

Symmetry Remnants: Rationale for Having Two Higgs Doublets

Ernest Ma·Daniel Ng
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Abstract

There is a good reason why the standard electroweak SU(2) X U(1) gauge model may be supplemented by two Higgs scalar doublets. They may be remnants of the spontaneous breaking of an SU(2) X SU(2) X U(1) gauge symmetry at a much higher energy scale. In one case, the two-doublet Higgs potential has a custodial SU(2) symmetry and implies an observable scalar triplet. In another, a light neutral scalar becomes possible.

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Ernest Ma, Daniel Ng. 1993-01-16. Symmetry Remnants: Rationale for Having Two Higgs Doublets. https://doi.org/10.1103/physrevd.49.569

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