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

M. Grazzini

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Steps towards NNLO QCD calculations: collinear factorization at O(α_S²)

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arxiv hep-ph/9905385 v1 pith:L5MEPNYI submitted 1999-05-18 hep-ph

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

M. Grazzini This is my paper

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keywords collinearfactorizationalphaamplitudesbecomebehaviourcalculationsconsider

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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.

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

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