On the factorization of overlapping singularities at NNLO
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Publication:476000
DOI10.1007/JHEP03(2011)038zbMATH Open1301.81284arXiv1011.4867OpenAlexW2079356507MaRDI QIDQ476000
Author name not available (Why is that?)
Publication date: 27 November 2014
Published in: (Search for Journal in Brave)
Abstract: Real and virtual corrections in NNLO QCD require multi-dimensional integrals with overlapping singularities. We first review ideas and methods which have been proposed for performing such computations. We then present a new method for the factorization of overlapping singularities based on non-linear integral transformations. We apply this method for the evaluation of all integral topologies which appear in double real radiation corrections in cross-section calculations for the production of a heavy system at hadron colliders. Finally, we demonstrate with typical examples that two-loop virtual corrections are amenable to the same method.
Full work available at URL: https://arxiv.org/abs/1011.4867
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