Score: 2

Multimodal Generative Flows for LHC Jets

Published: September 1, 2025 | arXiv ID: 2509.01736v2

By: Darius A. Faroughy, Manfred Opper, Cesar Ojeda

Potential Business Impact:

Makes computer simulations of particle collisions better.

Business Areas:
A/B Testing Data and Analytics

Generative modeling of high-energy collisions at the Large Hadron Collider (LHC) offers a data-driven route to simulations, anomaly detection, among other applications. A central challenge lies in the hybrid nature of particle-cloud data: each particle carries continuous kinematic features and discrete quantum numbers such as charge and flavor. We introduce a transformer-based multimodal flow that extends flow-matching with a continuous-time Markov jump bridge to jointly model LHC jets with both modalities. Trained on CMS Open Data, our model can generate high fidelity jets with realistic kinematics, jet substructure and flavor composition.

Repos / Data Links

Page Count
16 pages

Category
Physics:
High Energy Physics - Phenomenology