Stabilization of the Electroweak Vacuum by a Scalar Threshold Effect
High Energy Physics - Phenomenology
2015-06-04 v1 High Energy Physics - Theory
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.
Cite
@article{arxiv.1203.0237,
title = {Stabilization of the Electroweak Vacuum by a Scalar Threshold Effect},
author = {Joan Elias-Miró and José R. Espinosa and Gian F. Giudice and Hyun Min Lee and Alessandro Strumia},
journal= {arXiv preprint arXiv:1203.0237},
year = {2015}
}
Comments
18 pages, 5 figures