Package-X: a Mathematica package for the analytic calculation of one-loop integrals
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Publication:2374078
DOI10.1016/J.CPC.2015.08.017zbMATH Open1351.81011arXiv1503.01469OpenAlexW2151497957MaRDI QIDQ2374078
Author name not available (Why is that?)
Publication date: 14 December 2016
Published in: (Search for Journal in Brave)
Abstract: 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.
Full work available at URL: https://arxiv.org/abs/1503.01469
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