UFO 2.0 -- The Universal Feynman Output format
High Energy Physics - Phenomenology
2023-07-19 v2 High Energy Physics - Experiment
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.
Keywords
Cite
@article{arxiv.2304.09883,
title = {UFO 2.0 -- The Universal Feynman Output format},
author = {Luc Darmé and Céline Degrande and Claude Duhr and Benjamin Fuks and Mark Goodsell and Gudrun Heinrich and Valentin Hirschi and Stefan Höche and Marius Höfer and Joshua Isaacson and Olivier Mattelaer and Thorsten Ohl and Davide Pagani and Jürgen Reuter and Peter Richardson and Steffen Schumann and Hua-Sheng Shao and Frank Siegert and Marco Zaro},
journal= {arXiv preprint arXiv:2304.09883},
year = {2023}
}
Comments
28 pages; version accepted by EPJC