Indeed, some recent achievements, , in this field would hardly have been possible to complete within a reasonable time frame, if such projects were to be carried out only by pen and paper. In the last decades, the importance of computer tools for higher order perturbative calculations in quantum field theory (QFT) has increased tremendously. Hahn, Generating Feynman Diagrams and Amplitudes with FeynArts 3, Comput. Feng, $Apart: A Generalized Mathematica Apart Function, Comput. Seconds for few simple tree level and 1-loop Feynman diagrams Minutes or more for complicated diagrams.į. Running time: Depends on the complexity of the calculation. Feynman diagrams generated by FeynArts can be directly converted into FeynCalc input for subsequent evaluation. Partial fractioning algorithm of is added to decompose loop integrals into terms with linearly independent propagators. Tensor reduction of multi-loop integrals is now also available (except for cases with zero Gram determinants).
Summary of revisions: Tensor reduction of 1-loop integrals is extended to arbitrary rank and multiplicity with proper handling of integrals with zero Gram determinants. Reasons for the new version: Compatibility with Mathematica 10, improved performance and new features regarding manipulation of loop integrals.
#Feyncalc mathematica 7 code#
Commun., 64 (1991) 345, but the code was not included in the Library at that time. Restrictions: Slow performance for multi-particle processes (beyond 1 → 2 and 2 → 2) and processes that involve large ( >100) number of Feynman diagrams.Īdditional comments: The original FeynCalc paper was published in Comput. Reasons for new version: Compatibility with Mathematica 10, improved performance and new features regarding manipulation of loop integrals. Solution method: Algebraic identities that are needed for evaluation of Feynman Nature of problem: Symbolic semi-automatic evaluation of Feynman diagrams and algebraic expressions in quantum field theory. Programming language: Wolfram Mathematica 8 and higher.Ĭomputer: Any computer that can run Mathematica 8 and higher.Įxternal routines: FeynArts (Included) of bytes in distributed program, including test data, etc.: 6890074 of lines in distributed program, including test data, etc.: 734115 Licensing provisions: GNU Public Licence 3 Program obtainable from: CPC Program Library, Queen’s University, Belfast, N.
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