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arXiv · 1203.0237

Stabilization of the Electroweak Vacuum by a Scalar Threshold Effect

Joan Elias-Miró·José R. Espinosa·Gian F. Giudice·Hyun Min Lee·Alessandro Strumia
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Abstract

We show how a heavy scalar singlet with a large vacuum expectation value can evade the potential instability of the Standard Model electroweak vacuum. The quartic interaction between the heavy scalar singlet and the Higgs doublet leads to a positive tree-level threshold correction for the Higgs quartic coupling, which is very effective in stabilizing the potential. We provide examples, such as the see-saw, invisible axion and unitarized Higgs inflation, where the proposed mechanism is automatically implemented in well-defined ranges of Higgs masses.

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Joan Elias-Miró, José R. Espinosa, Gian F. Giudice, Hyun Min Lee, Alessandro Strumia. 2012-03-01. Stabilization of the Electroweak Vacuum by a Scalar Threshold Effect. https://doi.org/10.1007/jhep06(2012)031

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