6–11 Jul 2025
PALAIS DU PHARO, Marseille, France
Europe/Paris timezone

Hypergraph learning for full event reconstruction at pp and e+e- colliders

8 Jul 2025, 10:10
20m
PALAIS DU PHARO, Marseille, France

PALAIS DU PHARO, Marseille, France

Parallel T16 - AI for HEP (special topic 2025) T16

Speaker

Etienne Dreyer (Weizmann Institute of Science)

Description

Particle flow reconstruction algorithms lay the foundation for physics analysis at collider experiments. Enhancing these algorithms with deep learning offers a unique opportunity to improve experimental sensitivity at the LHC and future facilities. In this talk, we present HGPflow, a deep learning approach based on hypergraphs that provides a physics-motivated framework for the energy assignment problem in particle reconstruction. We demonstrate that HGPflow can reconstruct full proton-proton and electron-positron collisions while offering gains in both accuracy and interpretability over existing methods. We further highlight the importance of preserving locality when training on full collision events and propose a strategy to ensure that the model does not learn global event features.

Secondary track T12 - Data Handling and Computing

Authors

Etienne Dreyer (Weizmann Institute of Science) Nilotpal Kakati (Weizmann Institute of Science)

Presentation materials

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