FeynHelpers: Connecting FeynCalc to FIRE and PackageX
Abstract
We present a new interface called FEYNHELPERS that connects FEYNCALC, a MATHEMATICA package for symbolic semiautomatic evaluation of Feynman diagrams and calculations in quantum field theory (QFT) to PACKAGEX and FIRE. The former provides a library of analytic results for scalar 1loop integrals with up to 4 legs, while the latter is a generalpurpose tool for reduction of multiloop scalar integrals using IntegrationbyParts (IBP) identities.
 Publication:

Computer Physics Communications
 Pub Date:
 September 2017
 DOI:
 10.1016/j.cpc.2017.04.014
 arXiv:
 arXiv:1611.06793
 Bibcode:
 2017CoPhC.218...48S
 Keywords:

 Loop integrals;
 Dimensional regularization;
 Effective field theories;
 PassarinoVeltman;
 IBP;
 FeynCalc;
 FIRE;
 PackageX;
 Physics  Computational Physics;
 High Energy Physics  Phenomenology;
 High Energy Physics  Theory
 EPrint:
 40 pages, 1 figure, updated to match the journal version. Accompanying Mathematica notebooks are bundled with the source files of this document. To obtain the program, see https://github.com/FeynCalc/feynhelpers