Two-Loop master integrals for heavy-to-light form factors of two different massive fermions
Jan 2, 2018Citations per year
Abstract: (arXiv)
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.Note:
- 20 pages,1 figures. Typos are corrected, to appear in JHEP
- Perturbative QCD
- Precision QED
- fermion: massive
- quantum electrodynamics: correction
- electroweak interaction: correction
- form factor
- master integral
- differential equations
- momentum transfer
- higher-order: 2
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