{
  "abstract": "We investigate the production of the doubly charmed molecular state $T_{cc}^+$ within the coalescence model. The formation probability is evaluated with the Wigner distribution function. In contrast to previous studies, which usually adopt a Gaussian wave function, we obtain the molecular wave function by numerically solving the coupled-channel Schrödinger equation with the one-boson-exchange potential fitted to the mass spectrum of $T_{cc}^+$. The resulting wave function, well described by a Lorentzian in momentum space (a Yukawa-type exponential in coordinate space), is the universal form of a weakly bound $S$-wave molecule and thus more suitable for such a state. As the input of the coalescence model, we use the transverse-momentum distributions of the constituent $D$ and $D^*$ mesons fitted to the ALICE and LHCb data, and also generated by PYTHIA for comparison. We compute the transverse-momentum distributions of $T_{cc}^+$ in $pp$ and Pb-Pb collisions. The resulting spectrum, together with its insensitivity to the binding energy, highlights the universal character of the coalescence production of a weakly bound molecule, which is governed by the long-range tail of the wave function rather than by short-range details. These results provide a theoretical reference for future experimental measurements of $T_{cc}^+$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.29392",
  "author_total": 3,
  "authors": [
    {
      "name": "Ao Wang"
    },
    {
      "name": "Yu-Shan Ren"
    },
    {
      "name": "Zhi Yang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/amk13daqk7hcr.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.29392",
  "fulltext_url": null,
  "id": "amk13daqk7hcr",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.29392",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7223250452",
  "pdf_url": "https://arxiv.org/pdf/2610.29392",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/amk13daqk7hcr.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:19Z",
      "native_id": "2610.29392",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.29392"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Production of the weakly bound $T_{cc}^+$ state combining the coalescence model with its mass spectrum",
  "title_text": "Production of the weakly bound T_cc^+ state combining the coalescence model with its mass spectrum",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:19Z",
  "url": "https://research.draconitic.com/paper/amk13daqk7hcr",
  "venue": "arXiv",
  "versions": []
}