Amplitude Surrogates for Multi-Jet Processes

Fuente: arXiv
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Autores principales: Beccatini, Luca, Maltoni, Fabio, Mattelaer, Olivier, Winterhalder, Ramon
Formato: Preprint
Publicado: 2025
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author Beccatini, Luca
Maltoni, Fabio
Mattelaer, Olivier
Winterhalder, Ramon
author_facet Beccatini, Luca
Maltoni, Fabio
Mattelaer, Olivier
Winterhalder, Ramon
contents Accurate and efficient amplitude predictions are essential for precision studies of multi-jet processes at the LHC. We introduce a novel neural network architecture that predicts multi-jet amplitudes by leveraging the Catani-Seymour factorization scheme and related lower-jet amplitudes, requiring the network to learn only a correction factor. This hybrid approach combines theoretical factorization with a data-driven ansatz, enabling fast and scalable amplitude predictions. Our networks also estimate the accuracy of each prediction, allowing us to selectively use results that meet a predefined accuracy threshold. In the context of leading-order event generation, this approach achieves speed-up factors of up to 20 while maintaining all observables at the percent-level accuracy.
format Preprint
id arxiv_https___arxiv_org_abs_2512_11036
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Amplitude Surrogates for Multi-Jet Processes
Beccatini, Luca
Maltoni, Fabio
Mattelaer, Olivier
Winterhalder, Ramon
High Energy Physics - Phenomenology
Accurate and efficient amplitude predictions are essential for precision studies of multi-jet processes at the LHC. We introduce a novel neural network architecture that predicts multi-jet amplitudes by leveraging the Catani-Seymour factorization scheme and related lower-jet amplitudes, requiring the network to learn only a correction factor. This hybrid approach combines theoretical factorization with a data-driven ansatz, enabling fast and scalable amplitude predictions. Our networks also estimate the accuracy of each prediction, allowing us to selectively use results that meet a predefined accuracy threshold. In the context of leading-order event generation, this approach achieves speed-up factors of up to 20 while maintaining all observables at the percent-level accuracy.
title Amplitude Surrogates for Multi-Jet Processes
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2512.11036