2000/01/31 by Z. Bern, L. Dixon, D. A. Kosower
Physics and Astronomy · #hep-ph #hep-th
paper · pdf · doi:10.1088/1126-6708/2000/01/027
published as JHEP 0001:027,2000 · Latex, 27 pages, 12 figures; v2: normalizations corrected in (5.11), (A.6) and (A.7)
arxiv created 2011/06/24 · arxiv updated 2011/06/27
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(epsilon0) in terms of polylogarithms.