Integrated triple-collinear counter-terms for the nested soft-collinear subtraction scheme
High Energy Physics - Phenomenology
2019-08-19 v3
Abstract
We obtain analytic results for integrated triple-collinear splitting functions that emerge as collinear counter-terms in the context of the nested soft-collinear subtraction scheme arXiv:1702.01352 . With these results, all integrated subtraction terms required for NNLO QCD computations within this scheme are known analytically. In addition to improving efficiency and numerical stability of practical computations, the availability of these results will contribute towards establishing a general NNLO QCD subtraction formula for generic hard scattering processes in hadron collisions, similar to Catani-Seymour and FKS subtractions at NLO.
Cite
@article{arxiv.1901.05213,
title = {Integrated triple-collinear counter-terms for the nested soft-collinear subtraction scheme},
author = {Maximilian Delto and Kirill Melnikov},
journal= {arXiv preprint arXiv:1901.05213},
year = {2019}
}
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published version