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The Implementation of the Minimal Supersymmetric Standard Model in FeynArts and FormCalc

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arxiv hep-ph/0105349 v1 pith:DWUHGN3T submitted 2001-05-31 hep-ph

T. Hahn , C. Schappacher This is my paper · ORCID
classification hep-ph
keywords formcalcmssmfeynartsimplementationmodelparametersbeenfeynman
verification ladder T0 review T1 audit T2 compute T3 formal
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We describe the implementation of the MSSM in the diagram generator FeynArts and the calculational tool FormCalc. This extension allows to perform loop calculations of MSSM processes almost fully automatically. The actual implementation has two aspects: The MSSM Feynman rules are specified in a new model file for FeynArts. The computation of the parameters in the MSSM Lagrangian from the input parameters is realized as a Fortran subroutine in the framework of FormCalc. The model file does not depend on the latter, however, and can be used even if one does not want to continue the calculation with FormCalc. The Feynman rules have been entered in a very generic way to allow e.g. scenarios with complex parameters, and have been tested extensively by reproducing known results for several non-trivial scattering processes.

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Cited by 5 Pith papers

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