Implementation of non-linear gauge-fixing in FeynArts package
Abstract
Feynman rules for the Standard Model including non-linear gauges are derived and implemented in the FeynArts package. The calculations using FeynArts with the new rules show that tree-level amplitudes are gauge invariant and that renormalization is not spoiled for one-loop calculations. The FeynArts model files are available at http://www.fi.lt/~garfield/SM/
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