Tree-level vacuum stability of two-Higgs-doublet models and new constraints on the scalar potential

Abstract

The scalar potential of the two-Higgs-doublet model (2HDM) may have more than one local minimum and the usually considered vacuum could be located at one of them that could decay to another. This paper studies the condition that the usually considered vacuum is the global minimum which, combined with the bounded-from-below condition, will stabilize the vacuum at tree-level. We further apply these conditions to a specific 2HDM and obtain new constraints which could be important in phenomenological studies.

12 pages, references added

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Cited by in corpus (5)

• Heavy Higgs Bosons in 2HDM at a Muon Collider
• A Two Higgs Doublet Model for Dark Matter and Neutrino Masses
• Scrutinizing Vacuum Stability in IDM with Type-III Inverse seesaw
• Lepton and quark mixing patterns with generalized CP transformations
• Fate of the scalar quartic couplings in the inert models