Quark and gluon form factors to three loops

Details Quark and gluon form factors to three loops Quark and gluon form factors to three loops

2009-02-20

arxiv.org/abs/0902.3519v1

Phys.Rev.Lett.102:212002,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.102.212002

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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