A Two-Loop Four-Gluon Helicity Amplitude in QCD

Preprint

24 June 2011

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0001001

Abstract

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

Keywords

SCATTERING AMPLITUDE
HELICITY AMPLITUDE
GLUON HELICITY
FOUR GLUON
TWO LOOP
EPSILON
QCD

All Related Versions

Version 1, 2000-01-01, ArXiv
Version 2, 2011-06-24, ArXiv
Published version: Journal of High Energy Physics, 2000 (1), 027.

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