# Portals into Higgs vacuum stability

@inproceedings{Hiller2022PortalsIH, title={Portals into Higgs vacuum stability}, author={Gudrun Hiller and Tim Hohne and Daniel F. Litim and Tom Steudtner}, year={2022} }

We address the notorious metastability of the standard model (SM) and promote it to a model building task: What are the new ingredients required to stabilize the SM up to the Planck scale without encountering subplanckian Landau poles? Using the SM extended by vector-like fermions (VLFs), we chart out the corresponding landscape of Higgs stability. We ﬁnd that the gauge portal mechanism, triggered by new SM charge carriers, opens up sizeable room for stability in a minimally invasive manner. We…

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