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arXiv · 2105.11504

Fermionic corrections to quark and gluon form factors in four-loop QCD

Roman N. Lee·Andreas von Manteuffel·Robert M. Schabinger·Alexander V. Smirnov·Vladimir A. Smirnov·Matthias Steinhauser
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Abstract

We analytically compute all four-loop QCD corrections to the photon-quark and Higgs-gluon form factors involving a closed massless fermion loop. Our calculation of non-planar vertex integrals confirms a previous conjecture for the analytical form of the non-fermionic contributions to the collinear anomalous dimensions of quarks and gluons.

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Roman N. Lee, Andreas von Manteuffel, Robert M. Schabinger, Alexander V. Smirnov, Vladimir A. Smirnov, Matthias Steinhauser. 2021-05-24. Fermionic corrections to quark and gluon form factors in four-loop QCD. https://doi.org/10.1103/physrevd.104.074008

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