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. 2014 Aug 1;113(5):051801.
doi: 10.1103/PhysRevLett.113.051801. Epub 2014 Jul 30.

Radiative Electroweak Symmetry Breaking Model Perturbative All the Way to the Planck Scale

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Radiative Electroweak Symmetry Breaking Model Perturbative All the Way to the Planck Scale

Dongjin Chway et al. Phys Rev Lett. .

Abstract

We discuss an extension of the standard model by fields not charged under standard model gauge symmetry in which the electroweak symmetry breaking is driven by the Higgs quartic coupling itself without the need for a negative mass term in the potential. This is achieved by a scalar field S with a large coupling to the Higgs field at the electroweak scale which is driven to very small values at high energies by the gauge coupling of a hidden symmetry under which S is charged. This model can remain perturbative all the way to the Planck scale. The Higgs boson is fully standard-model-like in its couplings to fermions and gauge bosons. However, the effective cubic and quartic self-couplings of the Higgs boson are significantly enhanced.

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