Two-loop master integrals for heavy-to-light form factors of two different massive fermions

被引：0

作者：

Long-Bin Chen

机构：

[1] Guangzhou University,School of Physics & Electronic Engineering

来源：

Journal of High Energy Physics | / 2018卷

关键词：

Perturbative QCD; Precision QED;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We calculate the full set of the two-loop master integrals for heavy-to-light form factors of two different massive fermions for arbitrary momentum transfer in NNLO QCD or QED corrections. These integrals allow to determine the two-loop QCD or QED corrections to the amplitudes for heavy-to-light form factors of two massive fermions in a full analytical way, without any approximations. The analytical results of the master integrals are derived using the method of differential equations, along with a proper choosing of canonical basis for the master integrals. All the results of master integrals are expressed in terms of Goncharov polylogarithms.

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