Speaker
Description
High precision Higgs coupling measurements are mandatory to establish the exact nature of the electroweak symmetry breaking mechanism and to pin down possible effects of BSM physics. Higgs coupling measurements are generally done in the kappa framework, which is based on inclusive production and decay rates, it is therefore blind to any tension in differential distributions. It also assumes that only SM particles contribute. If deviations were to be observed, this framework by itself cannot provide clear BSM physics guidance. We report an Effective Field Theory (EFT) based approach for studying the Higgs couplings in the HWW channel which avoids these issues and maximizes the sensitivity to BSM physics. The analysis uses the full Run 2 dataset and results in some of the tightest constraints yet placed on anomalous contributions to the Higgs couplings.
