Mathematica / FeynRules package for deriving SMEFT Feynman rules
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Updated
Apr 8, 2026 - Python
Mathematica / FeynRules package for deriving SMEFT Feynman rules
feynlag is a pure-SymPy Python library for extracting tree-level Feynman rules from BSM Lagrangians. It automates the pipeline from declaring fields/gauge groups all the way to UFO export (MadGraph-compatible)
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