Inert scalars and vacuum metastability around the electroweak scale

@article{wieewska2015InertSA,
  title={Inert scalars and vacuum metastability around the electroweak scale},
  author={Bogumiła Świeżewska},
  journal={Journal of High Energy Physics},
  year={2015},
  volume={2015},
  pages={1-18}
}
  • B. Świeżewska
  • Published 24 March 2015
  • Physics
  • Journal of High Energy Physics
A bstractWe analyse effective potential around the electroweak (EW) scale in the Standard Model (SM) extended with a heavy scalar doublet. We show that the additional scalars can have a strong impact on vacuum stability. Although the additional heavy scalars may improve the behaviour of running Higgs self-coupling at large field values, we prove that they can destabilise the vacuum due to EW-scale effects. A new EW symmetry conserving minimum of the effective potential can appear rendering the… 
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