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arXiv · 1109.6484

FeynArts model file for MSSM transition counterterms from DREG to DRED

Dominik Stöckinger·Philipp Varso
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Abstract

The FeynArts model file MSSMdreg2dred.mod implements MSSM transition counterterms which can convert one-loop Green functions from dimensional regularization to dimensional reduction. They correspond to a slight extension of the well-known Martin/Vaughn counterterms, specialized to the MSSM, and can serve also as supersymmetry-restoring counterterms. The paper provides full analytic results for the counterterms and gives one- and two-loop usage examples. The model file can simplify combining MSbar-parton distribution functions with supersymmetric renormalization or avoiding the renormalization of epsilon-scalars in dimensional reduction.

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Dominik Stöckinger, Philipp Varso. 2011-09-29. FeynArts model file for MSSM transition counterterms from DREG to DRED. https://doi.org/10.1016/j.cpc.2011.10.010

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