{
  "abstract": "We present the first next-to-next-to-leading-order (NNLO) predictions for inclusive color-singlet toponium hadroproduction within NRQCD in the zero-width limit for the top quark. The central new result is the NNLO QCD correction to the short-distance coefficient for pseudoscalar toponium production. The predictions include electroweak and relativistic corrections, additional production channels, and perturbatively evaluated bound-state matrix elements. At the Large Hadron Collider proton-proton center-of-mass energy of $13\\,\\mathrm{TeV}$, we obtain a cross section of $4.87^{+0.63}_{-0.65}\\,\\mathrm{pb}$, with scale and parametric uncertainties combined. The NNLO corrections reduce the renormalization- and factorization-scale uncertainties by approximately a factor of four relative to NLO, to the few-percent level. The dominant remaining uncertainty arises from the Coulomb-scale dependence of the bound-state matrix elements.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.03782",
  "author_total": 5,
  "authors": [
    {
      "name": "Sven Yannick Klein"
    },
    {
      "name": "Fabio Maltoni"
    },
    {
      "name": "Hua-Sheng Shao"
    },
    {
      "name": "Lukas Simon"
    },
    {
      "name": "Guoxing Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ezqc3ppt1t4bm.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.03782",
  "fulltext_url": null,
  "id": "ezqc3ppt1t4bm",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.03782",
  "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/2611.03782",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ezqc3ppt1t4bm.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:21:25Z",
      "native_id": "2611.03782",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.03782"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Toponium hadroproduction at next-to-next-to-leading order in NRQCD",
  "title_text": "Toponium hadroproduction at next-to-next-to-leading order in NRQCD",
  "type": "preprint",
  "updated_at": "2026-11-06T18:21:01Z",
  "url": "https://research.draconitic.com/paper/ezqc3ppt1t4bm",
  "venue": "arXiv",
  "versions": []
}