Event

The SM Higgs sector is subject to two fine-tunings, manifesting in the hierarchy problem and the metastability of the electroweak vacuum. I will explain why these tunings, which were long believed to be independent, could in fact be related. I will present a simple argument that metastability requires a small Higgs mass and can potentially explain SSS, using both an EFT approach and considering a concrete UV completion of the SM. I will further explain how this result can be used for BSM model building and discuss it’s importance for future colliders. My talk is based on 2108.09315 (with J. Khoury), 2408.10297 (with S. Benevedes and S. Trifinopoulos) and a soon-to-be-published paper with V. Enguita and B. Gavela.