{
  "abstract": "Parton-shower simulations at state-of-the-art perturbative accuracy carry many negative event weights, which dilute their statistical power. For many purposes, this makes them unusable. We formulate a method for the generation of positive-weighted event samples which reproduce, up to a controllable approximation, suites of IR-safe observables with the highest perturbative accuracy of any available calculation. This method is arbitrarily differential in phase space, and free from unphysical artefacts such as binning-dependence. Applied to a leading-order Pythia sample, the method gives simultaneous NNLO accuracy for Drell--Yan and $Z+\\text{jet}$ observables in a positive-weighted event sample, for the first time. The method generalises immediately to higher orders of perturbation theory, higher multiplicities, and other processes, observables, and event generators.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.38712",
  "author_total": 3,
  "authors": [
    {
      "name": "Benoît Assi"
    },
    {
      "name": "Rene Poncelet"
    },
    {
      "name": "James Whitehead"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fka8v3mgzccbt.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.38712",
  "fulltext_url": null,
  "id": "fka8v3mgzccbt",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.38712",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ex"
    ],
    [
      "arxiv",
      "hep-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.38712",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fka8v3mgzccbt.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:23Z",
      "native_id": "2610.38712",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.38712"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Positive-weight moment matching at NNLO and beyond",
  "title_text": "Positive-weight moment matching at NNLO and beyond",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:45Z",
  "url": "https://research.draconitic.com/paper/fka8v3mgzccbt",
  "venue": "arXiv",
  "versions": []
}