Stabilization of the electroweak vacuum by a scalar threshold effect

  title={Stabilization of the electroweak vacuum by a scalar threshold effect},
  author={Joan Elias-Mir{\'o} and J. R. Espinosa and Gian Francesco Giudice and Hyun Min Lee and Alessandro Strumia},
  journal={Journal of High Energy Physics},
A bstractWe 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… 

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