1pm - 2pm: What could we learn from future measurements of light fermion Yukawa couplings?

The Higgs, and its couplings to fermions, lies at the heart of open questions of the Standard Model (SM) such as the hierarchy problem and the flavour puzzle. Currently, the strength of the Higgs couplings to first and second generation fermions are still uncertain, but measurements at HL-LHC and future colliders are expected provide significantly improved sensitivity. In this talk, I will use the language of effective field theories and simple models to discuss what kinds of new physics could affect these measurements. The particular flavour- and chirality-breaking structure of these couplings can imply patterns of correlated BSM effects in flavour physics, collider physics and dipole moments, while remaining undetectable in some well-studied testing grounds such as electroweak precision. Charting these connections, I’ll argue that deviations in Yukawa couplings could offer the first signs of some motivated varieties of new physics, and discuss correlated future tests in other observables.