Steps towards NNLO QCD calculations: collinear factorization at O(α_S^2)

Details Steps towards NNLO QCD calculations: collinear factorization at O(α_S^2) Steps towards NNLO QCD calculations: collinear factorization at O(α_S^2)

1999-05-18

arxiv.org/abs/hep-ph/9905385v1

Nucl.Phys.Proc.Suppl. 79 (1999) 441-443

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 1 eps figure, talk given at the DIS99 Workshop, Zeuthen, Germany, April 19-23, 1999

Scientific paper

10.1016/S0920-5632(99)00747-1

I consider the singular behaviour of tree-level QCD amplitudes when the
momenta of three partons become simultaneously parallel and I discuss the
universal factorization formula that controls the singularities of the
multiparton matrix elements in this collinear limit.

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