Speeding up MadGraph5_aMC@NLO

In this paper we will describe two new optimisations implemented in MadGraph5_aMC@NLO, both of which are designed to speed-up the computation of leading-order processes (for any model). First we implement a new method to evaluate the squared matrix element, dubbed helicity recycling, which results i...

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Detalles Bibliográficos
Autores principales: Mattelaer, O., Ostrolenk, K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2021
Materias:
Special Article - Tools for Experiment and Theory
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8136271/
https://www.ncbi.nlm.nih.gov/pubmed/34035657
http://dx.doi.org/10.1140/epjc/s10052-021-09204-7
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author Mattelaer, O.
Ostrolenk, K.
author_facet Mattelaer, O.
Ostrolenk, K.
author_sort Mattelaer, O.
collection PubMed
description In this paper we will describe two new optimisations implemented in MadGraph5_aMC@NLO, both of which are designed to speed-up the computation of leading-order processes (for any model). First we implement a new method to evaluate the squared matrix element, dubbed helicity recycling, which results in factor of two speed-up. Second, we have modified the multi-channel handling of the phase-space integrator providing tremendous speed-up for VBF-like processes (up to thousands times faster). SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1140/epjc/s10052-021-09204-7.
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spelling pubmed-81362712021-05-21 Speeding up MadGraph5_aMC@NLO Mattelaer, O. Ostrolenk, K. Eur Phys J C Part Fields Special Article - Tools for Experiment and Theory In this paper we will describe two new optimisations implemented in MadGraph5_aMC@NLO, both of which are designed to speed-up the computation of leading-order processes (for any model). First we implement a new method to evaluate the squared matrix element, dubbed helicity recycling, which results in factor of two speed-up. Second, we have modified the multi-channel handling of the phase-space integrator providing tremendous speed-up for VBF-like processes (up to thousands times faster). SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1140/epjc/s10052-021-09204-7. Springer Berlin Heidelberg 2021-05-20 2021 /pmc/articles/PMC8136271/ /pubmed/34035657 http://dx.doi.org/10.1140/epjc/s10052-021-09204-7 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . Funded by SCOAP3
spellingShingle Special Article - Tools for Experiment and Theory
Mattelaer, O.
Ostrolenk, K.
Speeding up MadGraph5_aMC@NLO
title Speeding up MadGraph5_aMC@NLO
title_full Speeding up MadGraph5_aMC@NLO
title_fullStr Speeding up MadGraph5_aMC@NLO
title_full_unstemmed Speeding up MadGraph5_aMC@NLO
title_short Speeding up MadGraph5_aMC@NLO
title_sort speeding up madgraph5_amc@nlo
topic Special Article - Tools for Experiment and Theory
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8136271/
https://www.ncbi.nlm.nih.gov/pubmed/34035657
http://dx.doi.org/10.1140/epjc/s10052-021-09204-7
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