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arxiv: 0902.3519 · v1 · submitted 2009-02-20 · ✦ hep-ph

Quark and gluon form factors to three loops

P.A. Baikov , K.G. Chetyrkin , A.V. Smirnov , V.A. Smirnov , M. Steinhauser This is my paper
classification ✦ hep-ph
keywords vertexfactorsformthree-loopblocksbosonbuildingcalculation
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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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