FeynRules is a Mathematica-based package which addresses the implementation of particle physics models, which are given in the form of a list of fields, parameters and a Lagrangian, into high-energy physics tools. It calculates the underlying Feynman rules and outputs them to a form appropriate for various programs such as CalcHEP, FeynArts, MadGraph, Sherpa and Whizard. Since the original version, many new features have been added: support for two-component fermions, spin-3/2 and spin-2 fields, superspace notation and calculations, automatic mass diagonalization, completely general FeynArts output, a new universal FeynRules output interface, a new Whizard interface, automatic 1 to 2 decay width calculation, improved speed and efficiency, new guidelines for validation and a new web-based validation package. With this feature set, FeynRules enables models to go from theory to simulation and comparison with experiment quickly, efficiently and accurately.
Affiliations
University of DurhamDepartment of Physics
Citations
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Alloul, A., Christensen, N. D., Degrande, C., Duhr, C., & Fuks, B. (2014). FeynRules2.0 — A complete toolbox for tree-level phenomenology. Computer Physics Communications, 185(8), 2250-2300. https://doi.org/10.1016/j.cpc.2014.04.012 (Original work published 2014)