Strings and Supersymmetry as Tools for Perturbative QCD

Details Strings and Supersymmetry as Tools for Perturbative QCD Strings and Supersymmetry as Tools for Perturbative QCD

1995-07-04

arxiv.org/abs/hep-ph/9507214v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 11 pages with 2 encapsulated figures in a uuencoded file. Presented at SUSY95, Paris, May, 1995

Scientific paper

We review techniques simplifying the analytic calculation of one-loop QCD amplitudes with many external legs, for use in next-to-leading-order corrections to multi-jet processes. We explain how a supersymmetry-inspired organization works well in conjunction with other tools, namely the color and helicity decompositions of amplitudes, and the constraints imposed by perturbative unitarity and collinear singularities. String theory seems most useful as a heuristic guide. Using these techniques, the complete set of one-loop five-parton QCD amplitudes, as well as certain sequences of special helicity amplitudes with an arbitrary number of external gluons, have been obtained.

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