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Advances in Local Analytic Sector Subtraction: massive NLO and elements of NNLO automation
by Gloria Bertolotti, Giovanni Limatola, Paolo Torrielli, and Sandro Uccirati
Submission summary
| Authors (as registered SciPost users): | Gloria Bertolotti |
| Submission information | |
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| Preprint Link: | scipost_202511_00066v1 (pdf) |
| Date submitted: | Nov. 25, 2025, 7:39 p.m. |
| Submitted by: | Gloria Bertolotti |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Computational |
Abstract
In this article we present a number of developments within the scheme of Local Analytic Sector Subtraction for infrared divergences in QCD. First, we extend the scheme to deal with next-to-leading-order (NLO) singularities related to massive QCD particles in the final state. Then, we document a new implementation of the NLO subtraction scheme in the MadNkLO automated numerical framework, which is constructed to host higher-order subtraction algorithms. In particular, we discuss improvements in its performances with respect to the original implementation. Finally we describe the MadNkLO implementation of the first elements relevant to Local Analytic Sector Subtraction at next-to-next-to-leading order (NNLO), in the case of massless QCD partons in the final state.
Author indications on fulfilling journal expectations
- Provide a novel and synergetic link between different research areas.
- Open a new pathway in an existing or a new research direction, with clear potential for multi-pronged follow-up work
- Detail a groundbreaking theoretical/experimental/computational discovery
- Present a breakthrough on a previously-identified and long-standing research stumbling block