Speaker
Description
Beyond the Standard Model (BSM) sources of CP violation are one of the required ingredients for solving the matter-antimatter puzzle. In this work, published in JHEP04(2024)014, we focus on leptonic WH production, a difficult channel due to the presence of a (unobservable) neutrino. We explore using a simulation-based inference method that reconstructs a detector-level optimal observable - SALLY - and benchmark it against kinematic and angular observables commonly used in experimental analyses, considering parton shower, hadronization and simplified detector simulation with Delphes. We see that a SALLY observable has comparable sensitivity to the best combination of kinematic and angular observables. This work aims at informing analysis strategies for Run 3 and beyond, with the ultimate goal of extracting the best sensitivity to BSM physics out of LHC data.