Three-loop massive form factors: complete light-fermion and large-Nc corrections for vector, axial-vector, scalar and pseudo-scalar currents

被引：0
作者：
Roman N. Lee
Alexander V. Smirnov
Vladimir A. Smirnov
Matthias Steinhauser
机构：
[1] Budker Institute of Nuclear Physics,Research Computing Center
[2] Moscow State University,undefined
[3] Skobeltsyn Institute of Nuclear Physics of Moscow State University,undefined
[4] Institut für Theoretische Teilchenphysik,undefined
[5] Karlsruhe Institute of Technology (KIT),undefined
来源：
Journal of High Energy Physics | / 2018卷
关键词：
Heavy Quark Physics; Perturbative QCD;
D O I：
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中图分类号：
学科分类号：
摘要：
We compute the three-loop QCD corrections to the massive quark form factors with external vector, axial-vector, scalar and pseudo-scalar currents. All corrections with closed loops of massless fermions are included. The non-fermionic part is computed in the large-Nc limit, where only planar Feynman diagrams contribute.
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