swMATH ID: 18225
Software Authors: Patel, Hiren H.
Description: Package-X: a Mathematica package for the analytic calculation of one-loop integrals. Package-X, a Mathematica package for the analytic computation of one-loop integrals dimensionally regulated near 4 spacetime dimensions is described. Package-X computes arbitrarily high rank tensor integrals with up to three propagators, and gives compact expressions of UV divergent, IR divergent, and finite parts for any kinematic configuration involving real-valued external invariants and internal masses. Output expressions can be readily evaluated numerically and manipulated symbolically with built-in Mathematica functions. Emphasis is on evaluation speed, on readability of results, and especially on user-friendliness. Also included is a routine to compute traces of products of Dirac matrices, and a collection of projectors to facilitate the computation of fermion form factors at one-loop. The package is intended to be used both as a research tool and as an educational tool.
Homepage: http://cpc.cs.qub.ac.uk/summaries/AEXT_v1_0.html
Dependencies: Mathematica
Keywords: one-loop; Feynman integrals; Passarino-Veltman
Related Software: FeynCalc; FeynArts; Mathematica; FORM; FeynRules; FeynHelpers; FIRE; HEPMath; COLLIER; GoSam; MadGraph; CompHep; CalcHEP; DIANA; Redberry; LiteRed; TripleK; DDCalc; DarkBit; NLOX
Cited in: 16 Publications

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