{
  "abstract": "Heavy-ion charge-exchange (CE) reactions provide a sensitive probe of isospin dynamics in nuclear collisions. We investigate the reaction $^{12}\\mathrm{C}(^{12}\\mathrm{C},\\,^{12}\\mathrm{N}\\,π^{+})\\,^{12}\\mathrm{Be}$ at 400--600 A MeV within the ultra-relativistic quantum molecular dynamics model combined with a phase-space coalescence approach. This reaction represents a nontrivial CE channel accompanied by a single $π^+$ production in heavy-ion collisions, extending previous studies from lepton-induced to hadronic systems. The $^{12}\\mathrm{N}$ fragment is formed via nucleon and meson exchange, whereas $π^+$ production is primarily governed by $Δ$ resonance excitation and decay, enabling simultaneous investigations of CE processes and $Δ$-induced pion production within the same reaction system. We calculate the reaction cross section and analyze the four-momentum distributions of $^{12}\\mathrm{N}$ and $π^+$. Characteristic phase-space features reflect different production mechanisms and provide guidance for future experimental designs. Additionally, this reaction may serve as a potential pathway for rare-isotope production.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Chin. Phys. C 50, 114101 (2026)",
  "arxiv": "2607.19924",
  "author_total": 6,
  "authors": [
    {
      "name": "Xiao-lei Chen"
    },
    {
      "name": "Jin-yu Yang"
    },
    {
      "name": "Shi-kang Dong"
    },
    {
      "name": "Bao-wei Ding"
    },
    {
      "name": "Bi-tao Hu"
    },
    {
      "name": "Xi-yu Qiu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/00cmhkkxww85b.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.19924",
  "fulltext_url": null,
  "id": "00cmhkkxww85b",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.19924",
  "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",
      "nucl-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2607.19924",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/00cmhkkxww85b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "2607.19924",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.19924"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Charge-Exchange Reactions Accompanied by a Single $π^+$ Production in Medium-Energy Heavy-Ion Collisions",
  "title_text": "Charge-Exchange Reactions Accompanied by a Single π^+ Production in Medium-Energy Heavy-Ion Collisions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:22Z",
  "url": "https://research.draconitic.com/paper/00cmhkkxww85b",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1088/1674-1137/ae9050",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}