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Towards NNLO+PS Matching with Sector Showers

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arxiv 2108.07133 v2 pith:PZCRMMGL submitted 2021-08-16 hep-ph hep-ex

John M Campbell , Stefan Höche , Hai Tao Li , Christian T Preuss , Peter Skands This is my paper · ORCID
classification hep-phhep-ex
keywords antennamatchingnnlofinal-stateshowershowerssidecalculations
verification ladder T0 review T1 audit T2 compute T3 formal
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We outline a new technique for the fully-differential matching of final-state parton showers to NNLO calculations, focussing here on the simplest case of leptonic collisions with two final-state jets. The strategy is facilitated by working in the antenna formalism, making use of NNLO antenna subtraction on the fixed-order side and the sector-antenna framework on the shower side. As long as the combined real-virtual and double-real corrections do not overcompensate the real-emission term in the three-jet region, negative weights can be eliminated from the matching scheme. We describe the implementation of all necessary components in the VINCIA antenna shower in PYTHIA 8.3.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Resonance-aware parton-shower matching for off-shell top-antitop production with semi-leptonic decays at electron-positron colliders

    hep-ph 2026-02 conditional novelty 7.0 of 10

    A resonance-aware MC@NLO matching procedure preserves top-antitop line shapes when NLO QCD predictions for off-shell ttbar production at e+e− colliders are showered with Pythia8.

  2. Resumming transverse observables for NNLO+PS matching in GENEVA

    hep-ph 2025-05 conditional novelty 6.0 of 10

    A GENEVA NNLO+PS generator for b bbar H and c cbar H is built with qT resummation at N3LL and the first NLL' resummation of a transverse-measure one-jettiness.

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