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arXiv · hep-ph/9905385

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

M. Grazzini
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Abstract

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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M. Grazzini. 1999-05-18. Steps towards NNLO QCD calculations: collinear factorization at O(α_S^2). https://doi.org/10.1016/s0920-5632(99)00747-1

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