UFO - The Universal FeynRules Output

By Céline Degrande, Claude Duhr, Benjamin Fuks, David Grellscheid, Olivier Mattelaer, Thomas Reiter. Computer Physics Communications, 2011

1,471 citations recorded by the source corpus.

We present a new model format for automatized matrix-element generators, the so- called Universal FeynRules Output (UFO). The format is universal in the sense that it features compatibility with more than one single generator and is designed to be flexible, modular and agnostic of any assumption such as the number of particles or the color and Lorentz structures appearing in the interaction vertices. Unlike other model formats where text files need to be parsed, the information on the model is encoded into a Python module that can easily be linked to other computer codes. We then describe an interface for the Mathematica package FeynRules that allows for an automatic output of models in the UFO format.

Subfields: Computer Networks and Communications, Hardware and Architecture, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/531ed4ed2626fc88130ef6e92c8962ef4064779d

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Citations in the corpus

SARAH 4: A tool for (not only SUSY) model builders (2013, methodology): “For SUSY and non-SUSY models the calculated vertices can be used to write model ﬁles for CalcHep / CompHep [20, 21], FeynArts / FormCalc [22, 23], WHIZARD / O’Mega [24, 25] as well as in the UFO format [26] which can be handled for instance by MadGraph 5 [27], GoSam [28] and Herwig++ [29–31].”
Electroweak and QCD corrections to top-pair hadroproduction in association with heavy bosons (2015, background): “We point out that these settings are not hard-coded in MadGraph5 aMC@NLO, but are inherited [33] from the adopted UFO [55] model.”
The SMEFTsim package, theory and tools (2017, methodology): “It contains both model files for FeynRules [4] and pre-exported UFO files [3] to be interfaced e.”
Exploring New Models in All Detail with SARAH (2015, methodology): “The UFO format is supported by MadGraph, Herwigg+ and Sherpa.”
Top-quark mass effects in double and triple Higgs production in gluon-gluon fusion at NLO (2014, methodology): “1) is implemented in FeynRules [67, 68]1 upgraded to NLO by including the necessary UV and R2 counter terms [55, 72–75] to obtain a UFO model [76, 77] that can be imported in MadGraph5 aMC@NLO.”
Probing top quark neutral couplings in the Standard Model Effective Field Theory at NLO in QCD (2016, methodology): “Our computation is performed within the MG5 aMC framework [20], where all the elements entering the NLO computations are available automatically starting from the SMEFT Lagrangian [31–36].”
Feynman rules for the Standard Model Effective Field Theory in Rξ-gauges (2017, background): “The evaluated Feynman rules can be exported in several commonly used formats (Latex, UFO [35], FeynArts [36] and others), such that they can be directly fed to other symbolic or numerical packages for high energy physics calculations.”
MadGraph 5: going beyond (2011, methodology): “ a new standard in terms of validation and availability [16, 17]. Communication between FeynRulesand matrix element programs is being standardized via the new Universal FeynRulesOutput format, the UFO[18]. – 2 – A connected eﬀort is being made in the automation of NLO computations. The generation of”
Les Houches 2015: Physics at TeV Colliders Standard Model Working Group Report (2016, methodology): “These counterterms are part of the so-called NLO UFO models [306], which is the general format used in MadGraph5_aMC@NLO for importing Feynman rules of a given Lagrangian.”
On the breaking of lepton flavor universality in B decays (2015, methodology): “To this purpose, we have implemented the model in Universal FeynRules Output (UFO) [56] using the FeynRules [55] package version 2.”
Higgs Physics at the HL-LHC and HE-LHC (2019, methodology): “We have generated the required UFO model file for Madgraph using the FeynRules package [246, 247].”