FastGPL 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 Standard Articles 1 Publication describing the Software Year FastGPL: a C++ library for fast evaluation of generalized polylogarithms Yuxuan Wang, Li Lin Yang, Bin Zhou 2021 Cited by 1 Author 1 Weinzierl, Stefan Cited in 1 Serial 1 Unitext for Physics Cited in 1 Field 1 Quantum theory (81-XX) Citations by Year