Progress towards 2 to 2 scattering at two-loops

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dc.creatorGlover, E. W. N.
dc.creatorTejeda-Yeomans, M. E.
dc.date2000-10-04
dc.date.accessioned2026-07-07T10:32:44Z
dc.date.available2026-07-07T10:32:44Z
dc.descriptionWe discuss the two-loop integrals necessary for evaluating massless 2 to 2 scattering amplitudes. As a test process, we consider the leading colour two-loop contribution to qqbar to q'qbar'. We show that for physical scattering processes the two Smirnov-Veretin planar box graphs I1 and I2 are accompanied by factors of 1/(D-4) thereby necessitating a knowledge of both I1 and I2 to O(epsilon). Using an alternative basis I1 and the irreducible numerator integral I3, the factors of 1/(D-4) disappear.
dc.description6 pages, latex, npb.sty, 3 postscript figures, contributed to proceedings of "Loops and Legs in Quantum Field Theory", Bastei, Germany, April 9-14, 2000
dc.identifierhttps://arxiv.org/abs/hep-ph/0010031
dc.identifierhttp://arxiv.org/abs/hep-ph/0010031
dc.identifierNucl.Phys.Proc.Suppl.89:196-202,2000
dc.identifierdoi:10.1016/S0920-5632(00)00843-4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178854
dc.subjectHigh Energy Physics - Phenomenology
dc.titleProgress towards 2 to 2 scattering at two-loops
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