Abstract
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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Del Duca, V., Somogyi, G. & Trócsányi, Z. Integration of collinear-type doubly unresolved counterterms in NNLO jet cross sections. J. High Energ. Phys. 2013, 79 (2013). https://doi.org/10.1007/JHEP06(2013)079
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DOI: https://doi.org/10.1007/JHEP06(2013)079