Thesis defense of Lara Nollen

This thesis presents a global analysis aiming to constrain physics beyond the Standard Model within the framework of the Standard Model Effective Field Theory. We combine high-pT collider measurements and precision flavor observables to set largely model-independent bounds on potential new interactions parameterized by the Wilson coefficients.
Despite its successes in describing a wide range of processes, the Standard Model of Particle Physics does not account for fundamental phenomena such as neutrino mass generation, dark matter existence, and baryon asymmetry, thus hinting at the existence of physics beyond the Standard Model. Given the current challenges in the direct detection of new particles, effective field theories offer a complementary approach to probe these phenomena indirectly. Central to our analysis is the systematic exploration of synergies between high-energy collider data and precision flavor observables using a Bayesian statistical framework. A particular emphasis is further placed on the flavor structure, examining the Minimal Flavor Violation approach in the quark sector and lepton-flavor-specific scenarios. Our results probe energy scales up to 100 TeV, offer indirect insights into potential flavor structures, and outline directions for future research.