FeynArts model file for MSSM transition counterterms from DREG to DRED

Details FeynArts model file for MSSM transition counterterms from DREG to DRED FeynArts model file for MSSM transition counterterms from DREG to DRED

2011-09-29

arxiv.org/abs/1109.6484v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

To be published in Comput.Phys.Commun.; the model file, a list of Feynman rules, and further information can be obtained from

Scientific paper

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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