arXiv:0902.3519·v1·High Energy Physics — Phenomenology
Quark and gluon form factors to three loops
P.A. Baikov🇷🇺 · K.G. Chetyrkin🇩🇪 · A.V. Smirnov🇷🇺 · V.A. Smirnov🇷🇺 · M. Steinhauser🇩🇪
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.
Comments: 5 pages, 2 figures