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Bounds from Stability and Symmetry Breaking on Parameters in the Two-Higgs-Doublet Potential

Boris Kastening
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Abstract

The most general $SU(2)\times U(1)_Y$-symmetric quartic potential with two Higgs doublets, subject to an only softly broken discrete symmetry $(ϕ_1,ϕ_2)\to(-ϕ_1,ϕ_2)$, is considered. At tree-level, analytic bounds on the parameters are derived that ensure a stable vacuum, breaking $SU(2)\times U(1)_Y$ down to $U(1)_{em}$.

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Boris Kastening. 1993-07-06. Bounds from Stability and Symmetry Breaking on Parameters in the Two-Higgs-Doublet Potential. https://arxiv.org/abs/hep-ph/9307224

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