Evading death by vacuum

Abstract

In the Standard Model, the Higgs potential allows only one minimum at tree-level. But the open possibility that there might be two scalar doublets enriches the vacuum structure, allowing for the risk that we might now be in a metastable state, which we dub the panic vacuum. Current experiments at the LHC are probing the Higgs particle predicted as a result of the spontaneous symmetry breaking. Remarkably, in the two Higgs model with a softly broken U(1) symmetry, the LHC experiments already preclude panic vacuum solutions.

7 pages, 4 figures

References in corpus (4)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Evolution of Universe to the present inert phase
• Neutral minima in two-Higgs doublet models

Cited by in corpus (34)

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• Constraints on inert dark matter from metastability of the electroweak vacuum
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• Search for a 'stable alignment limit' in two Higgs-doublet models
• Impact of Vacuum Stability Constraints on the Phenomenology of Supersymmetric Models
• Vacuum Instabilities in the N2HDM
• One-loop contributions to neutral minima in the inert doublet model
• CDF $W$ boson mass and muon $g-2$ in type-X two-Higgs-doublet model with a Higgs-phobic light pseudoscalar
• Inert scalars and vacuum metastability around the electroweak scale
• High scale impact in alignment and decoupling in two-Higgs doublet models
• Electroweak vacuum lifetime in two Higgs doublet models
• Are There Hidden Scalars in LHC Higgs Results?
• The vacuum structure of the Higgs complex singlet-doublet model
• Tree-level vacuum stability of two-Higgs-doublet models and new constraints on the scalar potential
• Constraints on 3-3-1 models with electroweak Z pole observables and Z' search at LHC
• Yet another lesson on the stability conditions in multi-Higgs potentials
• Vacuum Induced CP Violation Generating a Complex CKM Matrix with Controlled Scalar FCNC
• New scenario for aligned Higgs couplings originated from the twisted custodial symmetry at high energies
• Fermiophobic light Higgs boson in the type-I two-Higgs-doublet model
• Further study of the global minimum constraint on the two-Higgs-doublet models: LHC searches for heavy Higgs bosons
• Higgs phenomenology in the Stealth Doublet Model
• Stability of neutral minima against charge breaking in the Higgs triplet model
• Nonminimal Higgs Models, Dark Matter, and Evolution of the Universe
• Intermediate Charge-Breaking Phases and Symmetry Non-Restoration in the 2-Higgs-Doublet Model
• Softly broken symmetries in the 2HDM -- an invariant formulation
• Disentangling the high and low cutoff scales via the trilinear Higgs couplings in the type-I two-Higgs-doublet model
• No strong $CP$ violation up to the one-loop level in a two-Higgs-doublet model
• FCNC decays of the Higgs bosons in the BGL model
• One-Loop Charge-Breaking Minima in the Two-Higgs Doublet Model
• One-loop considerations for coexisting vacua in the CP conserving 2HDM
• Radiative seesaw corrections and charged-lepton decays in a model with soft flavour violation
• Fitting the $Zb\bar{b}$ vertex in the two-Higgs-doublet model and in the three-Higgs-doublet model
• Minimal U(1) two-Higgs-doublet models for quark and lepton flavour
• Avoiding Death by Vacuum