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High Energy Physics - Phenomenology

arXiv:2304.09883 (hep-ph)
[Submitted on 19 Apr 2023 (v1), last revised 13 Jul 2023 (this version, v2)]

Title:UFO 2.0 -- The Universal Feynman Output format

Authors:Luc Darmé, Céline Degrande, Claude Duhr, Benjamin Fuks, Mark Goodsell, Gudrun Heinrich, Valentin Hirschi, Stefan Höche, Marius Höfer, Joshua Isaacson, Olivier Mattelaer, Thorsten Ohl, Davide Pagani, Jürgen Reuter, Peter Richardson, Steffen Schumann, Hua-Sheng Shao, Frank Siegert, Marco Zaro
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Abstract:We present an update of the Universal FeynRules Output model format, commonly known as the UFO format, that is used by several automated matrix-element generators and high-energy physics software. We detail different features that have been proposed as extensions of the initial format during the last ten years, and collect them in the current second version of the model format that we coin the Universal Feynman Output format. Following the initial philosophy of the UFO, they consist of flexible and modular additions to address particle decays, custom propagators, form factors, the renormalisation group running of parameters and masses, and higher-order quantum corrections.
Comments: 28 pages; version accepted by EPJC
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
Report number: BONN-TH-2023-03, DESY-23-051, FERMILAB-PUB-23-138-T, KA-TP-06-2023, MCNET-23-06, P3H-23-023, TIF-UNIMI-2023-11
Cite as: arXiv:2304.09883 [hep-ph]
  (or arXiv:2304.09883v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2304.09883
Journal reference: Eur.Phys.J.C 83 (2023) 631
Related DOI: https://doi.org/10.1140/epjc/s10052-023-11780-9

Submission history

From: Benjamin Fuks [view email]
[v1] Wed, 19 Apr 2023 18:00:00 UTC (77 KB)
[v2] Thu, 13 Jul 2023 13:54:13 UTC (77 KB)
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