Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 2: QCD (Theorie) 1

T 2.8: Vortrag

Montag, 21. März 2022, 18:00–18:15, T-H15

Generative Networks for Precision Enthusiasts — Anja Butter, Theo Heimel, Sander Hummerich, Tobias Krebs, Tilman Plehn, Armand Rousselot, and •Sophia Vent — U. Heidelberg, ITP

Generative networks are opening new avenues in fast event generation for the LHC. We show how generative flow networks can reach percent-level precision for kinematic distributions, how they can be trained jointly with a discriminator, and how this discriminator improves the generation. Our joint training relies on a novel coupling of the two networks which does not require a Nash equilibrium. We then estimate the generation uncertainties through a Bayesian network setup and through conditional data augmentation, while the discriminator ensures that there are no systematic inconsistencies compared to the training data.