A study of electroweak vacuum metastability with a singlet scalar dark matter

Abstract

We study several aspects of electroweak vacuum metastability when an extra gauge singlet scalar, a viable candidate for a dark matter particle, is added to the standard model of particle physics, which is assumed to be valid up to the Planck scale. Phase diagrams are drawn for different parameter spaces, and based on that, we graphically demonstrate how the confidence level, at which stability of electroweak vacuum is excluded, depends on such new physics parameters.

22 pages, minor corrections, added additional references, to appear in Physical Review D

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Cited by in corpus (10)

• The lifetime of the electroweak vacuum and sensitivity to Planck scale physics
• Electroweak vacuum stability in presence of singlet scalar dark matter in TeV scale seesaw models
• Impact of New Physics on the EW vacuum stability in a curved spacetime background
• Gravitational waves from Higgs domain walls
• Higgs Vacuum Stability and Modified Chaotic Inflation
• Cosmological stochastic Higgs stabilization
• Thick Branes in Extra Dimensions and Suppressed Dark Couplings
• Clues on the Majorana scale from scalar resonances at the LHC
• U(1)' coupling constant at low energies from heterotic orbifolds
• Stability of the vacuum as constraint on $U$(1) extensions of the standard model