High-scale validity of a two Higgs doublet scenario: metastability included

Abstract

We make an attempt to identify regions in a Type II Two-Higgs Doublet Model, which correspond to a metastable electroweak vacuum with lifetime larger than the age of the universe. We analyse scenarios which retain perturbative unitarity up to Grand unification and Planck scales. Each point in the parameter space is restricted using Data from the Large Hadron Collider (LHC) as well as flavor and precision electroweak constraints. We find that substantial regions of the parameter space are thus identified as corresponding to metastability, which compliment the allowed regions for absolute stability, for top quark mass at the high as well as low end of its currently allowed range. Thus, a two-Higgs doublet scenario with the electroweak vacuum, either stable or metastable, can sail through all the way up to the Planck scale without facing any contradictions.

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Cited by in corpus (23)

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• High scale impact in alignment and decoupling in two-Higgs doublet models
• Distinguishing Inert Higgs Doublet and Inert Triplet Scenarios
• Electroweak vacuum lifetime in two Higgs doublet models
• Singlet-Doublet Fermionic Dark Matter and Gravitational Wave in Two Higgs Doublet Extension of the Standard Model
• Hilbert Series and Plethystics: Paving the path towards 2HDM- and MLRSM-EFT
• Portals into Higgs vacuum stability
• N-loop running should be combined with N-loop matching
• Impact of New Physics on the EW vacuum stability in a curved spacetime background
• Protecting the Stability of the EW Vacuum from Planck-Scale Gravitational Effects
• Impact of Fermionic Electroweak Multiplet Dark Matter on Vacuum Stability with One-loop Matching
• Scrutinizing Vacuum Stability in IDM with Type-III Inverse seesaw
• Non-supersymmetric SO(10) models with Gauge and Yukawa coupling unification
• Vacuum Stability in Inert Higgs Doublet Model with Right-handed Neutrinos
• The Ultraviolet Landscape of Two-Higgs Doublet Models
• Vacuum Stability of Asymptotically Safe Two Higgs Doublet Models
• High Scale Validity of the DFSZ Axion Model with Precision
• Interplay of inert doublet and vector-like lepton triplet with displaced vertices at the LHC/FCC and MATHUSLA
• Precise Calculation of the Decay Rate of False Vacuum with Multi-Field Bounce
• Constraining Scalar Doublet and Triplet Leptoquarks with Vacuum Stability and Perturbativity