May 30 – 31, 2023
Villa Mondragone
Europe/Rome timezone

Generating Accurate Showers in Highly Granular Calorimeters Using Normalizing Flows

May 31, 2023, 10:00 AM
Villa Mondragone

Villa Mondragone


Thorsten Buss (University of Hamburg)


Normalizing flows are a type of generative models that can be trained directly by minimizing the negative log-likelihood. It has been shown that flows can accurately model showers in low complexity calorimeters. We show how normalizing flows can be improved and adapted to accurately model showers in calorimeters with significantly higher complexity. One of the key points here is to move away from dense layers to convolutional layers. We show our results on datasets 2 and 3 of the CaloChallenge.

Primary authors

Claudius Krause (Heidelberg University) David Shih (Rutgers University) Frank Gaede (DESY) Prof. Gregor Kasieczka (University of Hamburg) Dr Sascha Diefenbacher (University of Hamburg) Thorsten Buss (University of Hamburg)

Presentation materials