Quark and gluon form factors to three loops
P.A. Baikov, K.G. Chetyrkin, A.V. Smirnov, V.A. Smirnov, M., Steinhauser
TL;DR
This paper presents the first complete three-loop calculations of quark and gluon form factors in massless QCD, providing essential components for higher-order cross section predictions.
Contribution
It introduces the first full three-loop vertex corrections for photon-quark and Higgs-gluon interactions in massless QCD.
Findings
First complete three-loop vertex correction calculations.
Provides essential building blocks for third-order cross sections.
Advances precision in perturbative QCD computations.
Abstract
We compute the form factors of the photon-quark-anti-quark vertex and the effective vertex of a Higgs boson and two gluons to three-loop order within massless perturbative Quantum Chromodynamics. These results provide building blocks for many third-order cross sections. Furthermore, this is the first calculation of complete three-loop vertex corrections.
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