Integrated subtraction terms and finite remainders for arbitrary processes with massless partons at colliders in the nested soft-collinear subtraction scheme
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866914249911042048 |
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| author | Devoto, Federica Melnikov, Kirill Röntsch, Raoul Signorile-Signorile, Chiara Tagliabue, Davide Maria Tresoldi, Matteo |
| author_facet | Devoto, Federica Melnikov, Kirill Röntsch, Raoul Signorile-Signorile, Chiara Tagliabue, Davide Maria Tresoldi, Matteo |
| contents | 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_08594 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Integrated subtraction terms and finite remainders for arbitrary processes with massless partons at colliders in the nested soft-collinear subtraction scheme Devoto, Federica Melnikov, Kirill Röntsch, Raoul Signorile-Signorile, Chiara Tagliabue, Davide Maria Tresoldi, Matteo High Energy Physics - Phenomenology 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. |
| title | Integrated subtraction terms and finite remainders for arbitrary processes with massless partons at colliders in the nested soft-collinear subtraction scheme |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2509.08594 |