{
  "abstract": "We report the first observation of the decays $B^{+} \\to Σ_{c}(2455)^{++} \\barΞ_{c}^{\\prime-}$ and $B^{0} \\to Σ_{c}(2455)^{0} \\barΞ_{c}^{\\prime0}$, with significances of $6.4\\,σ$ and $5.3\\, σ$, respectively, including systematic uncertainties. This analysis is based on data samples containing $771.6 \\times 10^{6}$ $Υ(4S)$ decays collected with the Belle detector at the KEKB collider and $520.6 \\times 10^{6}$ $Υ(4S)$ decays collected with the Belle~II detector at the SuperKEKB collider. The branching fractions are measured to be $\\mathcal{B}(B^+ \\to Σ_c(2455)^{++} \\barΞ_c^{\\prime -}) = (1.69 \\pm 0.31 \\pm 0.12^{+1.39}_{-0.56}) \\times 10^{-3}$ and $\\mathcal{B}(B^0 \\to Σ_c(2455)^{0} \\barΞ_c^{\\prime 0}) = (1.28 \\pm 0.32 \\pm 0.10^{+0.26}_{-0.22}) \\times 10^{-3}$, where the first and second uncertainties are statistical and systematic, respectively, and the third arises from the uncertainties in the absolute branching fractions of $\\barΞ_{c}^{-}$ and $\\barΞ_{c}^{0}$ decays. This result represents the first observation of $B$-meson decays into a pair of charmed baryon-antibaryon states belonging to the same $SU(3)$ flavor sextet.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Physical Review D 114, 052016 (2026)",
  "arxiv": "2606.12905",
  "author_total": 405,
  "authors": [
    {
      "name": "Belle"
    },
    {
      "name": "Belle II Collaborations"
    },
    {
      "name": "M. Abumusabh"
    },
    {
      "name": "A. Aggarwal"
    },
    {
      "name": "H. Ahmed"
    },
    {
      "name": "J. K. Ahn"
    },
    {
      "name": "Y. Ahn"
    },
    {
      "name": "M. Akdag"
    },
    {
      "name": "N. Akopov"
    },
    {
      "name": "S. Alghamdi"
    },
    {
      "name": "M. Alhakami"
    },
    {
      "name": "N. Althubiti"
    },
    {
      "name": "K. Amos"
    },
    {
      "name": "M. Angelsmark"
    },
    {
      "name": "N. Anh Ky"
    },
    {
      "name": "C. Antonioli"
    },
    {
      "name": "K. Arai"
    },
    {
      "name": "H. Atmacan"
    },
    {
      "name": "V. Aushev"
    },
    {
      "name": "R. Ayad"
    },
    {
      "name": "V. Babu"
    },
    {
      "name": "H. Bae"
    },
    {
      "name": "N. K. Baghel"
    },
    {
      "name": "S. Bahinipati"
    },
    {
      "name": "P. Bambade"
    },
    {
      "name": "Sw. Banerjee"
    },
    {
      "name": "M. Barrett"
    },
    {
      "name": "M. Bartl"
    },
    {
      "name": "J. Baudot"
    },
    {
      "name": "A. Beaubien"
    },
    {
      "name": "F. Becherer"
    },
    {
      "name": "J. Becker"
    },
    {
      "name": "G. F. Benfratello"
    },
    {
      "name": "J. V. Bennett"
    },
    {
      "name": "F. U. Bernlochner"
    },
    {
      "name": "V. Bertacchi"
    },
    {
      "name": "M. Bertemes"
    },
    {
      "name": "E. Bertholet"
    },
    {
      "name": "M. Bessner"
    },
    {
      "name": "S. Bettarini"
    },
    {
      "name": "V. Bhardwaj"
    },
    {
      "name": "B. Bhuyan"
    },
    {
      "name": "F. Bianchi"
    },
    {
      "name": "T. Bilka"
    },
    {
      "name": "D. Biswas"
    },
    {
      "name": "A. Bobrov"
    },
    {
      "name": "D. Bodrov"
    },
    {
      "name": "G. Bonvicini"
    },
    {
      "name": "J. Borah"
    },
    {
      "name": "A. Boschetti"
    },
    {
      "name": "A. Bozek"
    },
    {
      "name": "M. Bračko"
    },
    {
      "name": "P. Branchini"
    },
    {
      "name": "R. A. Briere"
    },
    {
      "name": "T. E. Browder"
    },
    {
      "name": "A. Budano"
    },
    {
      "name": "S. Bussino"
    },
    {
      "name": "Q. Campagna"
    },
    {
      "name": "M. Campajola"
    },
    {
      "name": "M. Carminati"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5x9qk04cv18bc.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.12905",
  "fulltext_url": null,
  "id": "5x9qk04cv18bc",
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  "landing_url": "https://arxiv.org/abs/2606.12905",
  "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"
    ]
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  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2606.12905",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5x9qk04cv18bc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:26:03Z",
      "native_id": "2606.12905",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.12905"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Observation of the decays $B^{+} \\to Σ_{c}(2455)^{++} \\barΞ_{c}^{\\prime-}$ and $B^{0} \\to Σ_{c}(2455)^{0} \\barΞ_{c}^{\\prime0}$",
  "title_text": "Observation of the decays B^+ → Σ_c(2455)^++ Ξ̅_c^′− and B^0 → Σ_c(2455)^0 Ξ̅_c^′0",
  "type": "preprint",
  "updated_at": "2026-10-30T12:26:03Z",
  "url": "https://research.draconitic.com/paper/5x9qk04cv18bc",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/jhr2-2f9r",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
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}