Key points are not available for this paper at this time.
In this proceeding we report on the recent study 1 performed in the context of nested soft-collinear subtraction 2. The scheme is designed to provide a fully differential and analytic subtraction method for infrared singularities at next-to-next-to-leading order (NNLO) in QCD. At variant with respect to the first formulation of the nested soft-collinear subtraction, Ref. 1 aims at organising the subtraction procedure in a way that allows for a drastic reduction of the complexity related to the proliferation of the subtraction terms, and at dealing with arbitrary final states. In this document we highlight a crucial aspect of the analysis of Ref. 1: the idea of rearranging NNLO subtraction terms as iterations of few universal structures identified at NLO.
Tagliabue et al. (Fri,) studied this question.