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One-Loop Charge-Breaking Minima in the Two-Higgs Doublet Model

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arxiv 1910.08662 v1 pith:3FKAY3IU submitted 2019-10-18 hep-ph

One-Loop Charge-Breaking Minima in the Two-Higgs Doublet Model

classification hep-ph
keywords modelcharge-breakingdoubletone-looponesvacuuaanalysisanalyze
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We analyze the vacuum structure of the one-loop effective potential in the two Higgs doublet model. We find that electroweak-breaking vacuua can coexist with charge breaking ones, contradicting a theorem valid at tree-level. We perform a numerical analysis of the model and supply explicit parameter values for which charge-breaking vacuua can be the global minimum of the theory, and deeper than charge-preserving ones.

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