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Title

Generating and Calculating One-loop Feynman Diagrams with FeynArts, FormCalc, and LoopTools
Author

Thomas Hahn
Organization: Max-Planck-Institute for Physics (Werner-Heisenberg-Institute)
URL: http://wwwth.mppmu.mpg.de/members/hahn/
Journal / Anthology

arXiv:hep-ph/9905354
Year: 1999
Description

A set of programs is presented for automatically generating and calculating Feynman diagrams. Diagrams are generated with FeynArts, then algebraically simplified using a combination of Mathematica and FORM implemented in the package FormCalc, and finally evaluated numerically using the LoopTools package. FormCalc works either in dimensional regularization or in constrained differential renormalization, the latter of which is equivalent at the one-loop level to regularization by dimensional reduction. FormCalc combines the speed of FORM with the powerful instruction set of Mathematica, and the latter greatly eases further processing of the results (e.g. selecting or modifying terms). The output is in a form well suited for numerical evaluation, which is then straightforward using the implementations of the one-loop integrals in LoopTools.
Subjects

*Mathematica Technology > Application Packages > Additional Applications > FeynArts
*Mathematica Technology > Application Packages > Additional Applications > FeynCalc
*Science > Physics > Quantum Physics
Related items

*Automatic loop calculations with FeynArts, FormCalc, and LoopTools   [in Articles]
*Generating Feynman Diagrams and Amplitudes with FeynArts 3   [in Articles]
*Generating Feynman Graphs and Amplitudes with FeynArts   [in MathSource: Packages and Programs]
URL

http://www.arxiv.org/abs/hep-ph/9905354