swMATH ID: 43230
Software Authors: Yuxuan Wang, Li Lin Yang, Bin Zhou
Description: FastGPL: a C++ library for fast evaluation of generalized polylogarithms. We present FastGPL, a C++ library for the fast evaluation of generalized polylogarithms which appear in many multi-loop Feynman integrals. We implement the iterative algorithm proposed by Vollinga and Weinzierl in a two-step approach, i.e., we generate concise expressions using an external program and hard-code them into the numeric library. This allows efficient and accurate numeric evaluations of generalized polylogarithms suitable for Monte Carlo integration and event generation. Floating-point arithmetics are carefully taken care of to avoid loss of accuracy. As an application and demonstration, we calculate the two-loop corrections for Higgs boson production in the vector boson fusion channel at electron-positron colliders. FastGPL is expected to be useful for event generators at the next-to-next-to-leading order accuracy.
Homepage: https://arxiv.org/abs/2112.04122
Source Code:  https://github.com/llyang/fastgpl
Dependencies: C++
Keywords: High Energy Physics; arXiv_hep-ph; FastGPL; C++ library; generalized polylogarithms; Feynman integrals; multi-loop Feynman integrals
Related Software: LiteRed; FIRE; handyG; GiNaC; OpenLoops; SHERPA; FeynCalc; Cuba; MultivariateApart; FiniteFlow; Kira; RationalizeRoots; pySecDec; epsilon; Fuchsia; qseries; FIESTA; HYPERDIRE; Reduze; FORM
Cited in: 1 Publication

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FastGPL: a C++ library for fast evaluation of generalized polylogarithms
Yuxuan Wang, Li Lin Yang, Bin Zhou

Cited by 1 Author

1 Weinzierl, Stefan

Cited in 1 Serial

1 Unitext for Physics

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