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arXiv · hep-ph/9405307

Signatures of discrete symmetries in the scalar sector

L. Lavoura
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Abstract

I discuss methods to identify the presence of dicrete symmetries in the two-Higgs-doublet model by observing the masses and the cubic and quartic interactions of the scalars. The symmetries considered are a $ Z_2 $ symmetry under which $ ϕ_2 \rightarrow - ϕ_2 $, and a CP symmetry which enforces real coupling constants in the Higgs potential. Those symmetries are spontaneously broken, and the $ Z_2 $ symmetry may also be softly broken. I identify the signatures in the interactions of the scalars that these symmetries leave after their breaking.

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L. Lavoura. 1994-05-16. Signatures of discrete symmetries in the scalar sector. https://doi.org/10.1103/physrevd.50.7089

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