4–8 Nov 2024
LPNHE, Paris, France
Europe/Paris timezone

Constraining the Higgs Potential with Neural Simulation-based Inference for Di-Higgs Production

7 Nov 2024, 17:00
20m
Amphi Charpak

Amphi Charpak

Speaker

Radha Mastandrea (University of California, Berkeley)

Description

Determining the form of the Higgs potential is one of the most exciting challenges of modern particle physics. Higgs pair production directly probes the Higgs self-coupling and should be observed in the near future at the High-Luminosity LHC. We explore how to improve the sensitivity to physics beyond the Standard Model through per-event kinematics for di-Higgs events. In particular, we employ machine learning through simulation-based inference to estimate per-event likelihood ratios and gauge potential sensitivity gains from including this kinematic information. In terms of the Standard Model Effective Field Theory, we find that adding a limited number of observables can help to remove degeneracies in Wilson coefficient likelihoods and significantly improve the experimental sensitivity.

Track Anomaly detection

Authors

Dr Benjamin Nachman (LBNL) Radha Mastandrea (University of California, Berkeley) Tilman Plehn

Presentation materials