A two-loop four-gluon helicity amplitude in QCD

By Z. Bern, L. Dixon, David A. Kosower. 2000

158 citations recorded by the source corpus.

The authors present the two-loop pure gauge contribution to the gluon-gluon scattering amplitude with maximal helicity violation. The construction of the amplitude does not rely directly on Feynman diagrams, but instead uses its analytic properties 4--2{epsilon} dimensions. The authors evaluate the loop integrals appearing in the amplitude through order({epsilon}{sup 0})in terms of polylogarithms.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/5814ba45d12743de1c74464169eec68feedf0e40

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In Nuclear and High Energy Physics

1. Pierpaolo Mastrolia
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Citations in the corpus

• Cut-constructible part of QCD amplitudes (2006, methodology): “[31,24, 32 ,25]. A recent innovation [27,30], making use of leading singularities, allows a”
• Uniqueness of two-loop master contours (2012, unknown): “[55], the O( ) parts of two-loop integral coefficients are not obtainable from four-dimensional cuts.”
• One-loop amplitudes of gluons in supersymmetric QCD (2005, methodology): “This technique allows the systematic calculation of N = 1 amplitudes of gluons.”
• A two-loop five-gluon helicity amplitude in QCD (2013, methodology): “19), can be shown to reproduce the known result [33],”