{
  "abstract": "We perform the first fit of the unpolarised gluon transverse-momentum-dependent distribution $f_1^g$ up to next-to-next-to-leading-logarithmic accuracy to the double-differential distribution in the invariant mass and transverse momentum of the latest $J/ψ$-pair production LHCb data. We review previous attempts to describe the older $J/ψ$-pair LHCb data using $f_1^g$, and discuss two novel methodologies which allow us to account in the fit for both the perturbative and PDF uncertainties to construct $f_1^g$ in the perturbative region. It turns out that the consideration of these uncertainties is crucial for a meaningful fit to such low-scale gluon-sensitive data.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.01000",
  "author_total": 7,
  "authors": [
    {
      "name": "Daniël Boer"
    },
    {
      "name": "Jelle Bor"
    },
    {
      "name": "Alice Colpani Serri"
    },
    {
      "name": "Miguel G Echevarria"
    },
    {
      "name": "Jean-Philippe Lansberg"
    },
    {
      "name": "Samuel F Romera"
    },
    {
      "name": "Pieter Taels"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/86n4ebvxw2evd.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.01000",
  "fulltext_url": null,
  "id": "86n4ebvxw2evd",
  "issns": [],
  "landing_url": "https://hal.science/hal-05759093v1",
  "language": "en",
  "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-ph"
    ],
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.hphe"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7206169626",
  "pdf_url": "https://arxiv.org/pdf/2609.01000",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/86n4ebvxw2evd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:37Z",
      "native_id": "hal-05759093",
      "source": "hal",
      "url": "https://hal.science/hal-05759093v1"
    },
    {
      "first_seen": "2026-10-30T12:18:00Z",
      "native_id": "2609.01000",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.01000"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "NNLL fit of the transverse-momentum-dependent distribution of unpolarised gluons to LHCb data on $J/ψ$-pair production",
  "title_text": "NNLL fit of the transverse-momentum-dependent distribution of unpolarised gluons to LHCb data on J/ψ-pair production",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:00Z",
  "url": "https://research.draconitic.com/paper/86n4ebvxw2evd",
  "venue": "HAL",
  "versions": []
}