Integrated subtraction terms and finite remainders for arbitrary processes with massless partons at colliders in the nested soft-collinear subtraction scheme Article Swipe

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Federica Devoto , Kirill Melnikov , Raoul Röntsch , Chiara Signorile-Signorile , D Tagliabue , Matteo Tresoldi ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2509.08594 · OA: W4416069234

We present integrated subtraction terms and finite remainders for arbitrary processes with massless partons at hadron and lepton colliders in the context of the nested soft-collinear subtraction scheme. These results provide the very last ingredients needed to make this scheme a fully local, analytic and process-independent framework for treating infrared singularities at next-to-next-to-leading order in perturbative QCD. The explicit infrared finiteness of all required contributions, as well as their process-independence, puts these results on par with subtraction schemes developed for next-to-leading order computations and opens up a clear path towards the automation of next-to-next-to-leading order computations in QCD.