Preprint

PUBDB-2025-01080

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Advances in Local Analytic Sector Subtraction: massive NLO and elements of NNLO automation

Bertolotti, G. ; Limatola, G. (Corresponding author)Extern* ; Torrielli, P. ; Uccirati, S.

2025

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Please use a persistent id in citations: doi:10.3204/PUBDB-2025-01080

Report No.: DESY-25-042; arXiv:2503.14629

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.

Note: 22 pages + appendices

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Contributing Institute(s):

1. LHC/CMS Experiment (CMS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2025

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