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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Resum

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.
Idioma originalAnglès
Número d’article031
RevistaJournal of High Energy Physics
Volum2012
Número6
DOIs
Estat de la publicacióPublicada - 1 de gen. 2012

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