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Integration of collinear-type doubly unresolved counterterms in NNLO jet cross sections

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arxiv 1301.3504 v1 pith:R7PAT5IN submitted 2013-01-15 hep-ph

Vittorio Del Duca , Gabor Somogyi , Zoltan Trocsanyi This is my paper · ORCID
classification hep-ph
keywords crosscollinear-typecountertermsdoublyintegrationnnlosectionsspace
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In the context of a subtraction method for jet cross sections at NNLO accuracy in the strong coupling, we perform the integration over the two-particle factorised phase space of the collinear-type contributions to the doubly unresolved counterterms. We present the final result as a convolution in colour space of the Born cross section and of an insertion operator, which is written in terms of master integrals that we expand in the dimensional regularisation parameter.

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