FeynArts model file for MSSM transition counterterms from DREG to DRED

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.

To be published in Comput.Phys.Commun.; the model file, a list of Feynman rules, and further information can be obtained from the web page http://iktp.tu-dresden.de/?theory-software

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• Squark production in R-symmetric SUSY with Dirac gluinos: NLO corrections
• Extending the Universal One-Loop Effective Action by Regularization Scheme Translating Operators
• Three-loop MSSM Higgs-Boson Mass Predictions and Regularization by Dimensional Reduction
• One Formula To Match Them All: The Bispinor Universal One-Loop Effective Action