Infrared factorization of tree-level QCD amplitudes at the next-to-next-to-leading order and beyond

Details Infrared factorization of tree-level QCD amplitudes at the next-to-next-to-leading order and beyond Infrared factorization of tree-level QCD amplitudes at the next-to-next-to-leading order and beyond

1999-08-31

arxiv.org/abs/hep-ph/9908523v1

Nucl.Phys. B570 (2000) 287-325

Physics

High Energy Physics

High Energy Physics - Phenomenology

latex, 38 pages, 11 eps figures

Scientific paper

We study the infrared behaviour of tree-level QCD amplitudes and we derive
infrared-factorization formulae that are valid at any perturbative order. We
explicitly compute all the universal infrared factors that control the
singularities in the various soft and/or collinear limits at O(as^2).

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