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arXiv · 1801.01033

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

Long-Bin Chen
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Abstract

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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Long-Bin Chen. 2018-01-02. Two-Loop master integrals for heavy-to-light form factors of two different massive fermions. https://doi.org/10.1007/jhep02(2018)066

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