Speaker
Description
We revisit the stability analysis of the Standard Model Higgs potential, using both the highest theoretical precision and the most accurate determination of input parameters to date. The stability of the electroweak vacuum is found to be subject to the top mass and the strong coupling constant, and we discuss the impact of their central values and uncertainties in detail.
We further investigate vacuum stability for a variety of singlet scalar field extensions. We identify the cutoff-free BSM parameter spaces for stability and find sizable room for new physics. Phenomenological implication such as modified Higgs trilinear, the Higgs-to-electroweak-boson, and the Higgs quartic couplings are studied in the light of the HL-LHC upgrade and future colliders such as the FCC-hh.
