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arxiv: hep-ph/0406231 · v2 · submitted 2004-06-21 · ✦ hep-ph

Stability of the tree-level vacuum in two Higgs doublet models against charge or CP spontaneous violation

P.M. Ferreira , R. Santos , A. Barroso This is my paper
classification ✦ hep-ph
keywords chargedoublethiggsmodelspotentialspontaneoustree-levelbreaking
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We show that in two Higgs doublet models at tree-level the potential minimum preserving electric charge and CP symmetries, when it exists, is the global one. Furthermore, we derived a very simple condition, involving only the coefficients of the quartic terms of the potential, that guarantees spontaneous CP breaking.

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