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Hashemi, B.* ; Hartmann, N.* ; Sharifzadeh, S.* ; Kahn, J.* ; Kuhr, T.*

Ultra-high-granularity detector simulation with intra-event aware generative adversarial network and self-supervised relational reasoning.

Nat. Commun. 15, 16 (2024)
Publ. Version/Full Text DOI
Open Access Gold
Simulating high-resolution detector responses is a computationally intensive process that has long been challenging in Particle Physics. Despite the ability of generative models to streamline it, full ultra-high-granularity detector simulation still proves to be difficult as it contains correlated and fine-grained information. To overcome these limitations, we propose Intra-Event Aware Generative Adversarial Network (IEA-GAN). IEA-GAN presents a Transformer-based Relational Reasoning Module that approximates an event in detector simulation, generating contextualized high-resolution full detector responses with a proper relational inductive bias. IEA-GAN also introduces a Self-Supervised intra-event aware loss and Uniformity loss, significantly enhancing sample fidelity and diversity. We demonstrate IEA-GAN’s application in generating sensor-dependent images for the ultra-high-granularity Pixel Vertex Detector (PXD), with more than 7.5 M information channels at the Belle II Experiment. Applications of this work span from Foundation Models for high-granularity detector simulation, such as at the HL-LHC (High Luminosity LHC), to simulation-based inference and fine-grained density estimation.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 2024
HGF-reported in Year 2024
ISSN (print) / ISBN 2041-1723
e-ISSN 2041-1723
Quellenangaben Volume: 15, Issue: 1, Pages: 16 Article Number: , Supplement: ,
Publisher Nature Publishing Group
Publishing Place London
Reviewing status Peer reviewed
Institute(s) Helmholtz AI - KIT (HAI - KIT)
Grants Helmholtz Association Initiative and Networking Fund under the Helmholtz AI platform grant
Deutsche Forschungsgemeinschaft under Germany's Excellence Strategy
German Federal Ministry of Education and Research (BMBF)
Scopus ID 85195533686
Erfassungsdatum 2024-06-17