27–29 Feb 2024
FIAS
Europe/Berlin timezone

Machine-learning off-shell effects in top quark production

29 Feb 2024, 10:15
45m
FIAS

FIAS

Speaker

Mathias Kuschick (Universität Münster)

Description

Off-shell effects in large LHC backgrounds are crucial for precision predictions and, at the same time, challenging to simulate. We show how a generative diffusion network learns off-shell kinematics given the much simpler on-shell process. The idea behind this sampling from on-shell events is that the generative network does not have to reproduce the on-shell features and can focus on the additional and relatively smooth off-shell extension. It generates off-shell configurations fast and precisely, while reproducing even challenging on-shell features.

Primary authors

Anja Butter (ITP Heidelberg) Mathias Kuschick (Universität Münster) Michael Klasen (WWU Münster) Sofia Palacios Schweitzer (Universität Heidelberg) Tilman Plehn (Heidelberg University) Tomáš Ježo (Universität Münster)

Presentation materials