{
  "abstract": "We study the processes $e^+e^-\\toΥ_J(1D)η$ and $e^+e^-\\toΥ_J(1D)π^+π^-$ at center-of-mass energies $\\sqrt{s}$=(10.73 -- 11.02) GeV using a $142.5\\,\\mathrm{fb}^{-1}$ data sample, including 122~fb$^{-1}$ near the $Υ$(10860) peak ($\\sqrt{s}$ = 10.866 GeV), collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. From the peak sample, the products of Born cross section times branching fraction are obtained for $σ_{\\rm Born}(e^+e^-\\toΥ_J(1D)η)$ or $σ_{\\rm Born}(e^+e^-\\toΥ_J(1D)π^+π^-)$ and ${\\cal B}(Υ_J(1D)\\toχ_{b1}γ)$ or ${\\cal B}(Υ_J(1D)\\toχ_{b2}γ)$ for each $Υ_J(1D)$ state. The corresponding branching fractions for $Υ(10860)$ decays are also obtained. The significances of the $Υ_1(1D)$, $Υ_2(1D)$, and $Υ_3(1D)$ signals are 4.8$σ$, ${>}10σ$, and 3.0$σ$, respectively, including systematic uncertainties. The mass for $Υ_2(1D)$ is measured to be $(10167.0\\pm 1.0\\pm 0.2)$ MeV/$c^2$, where the first and second uncertainties are statistical and systematic. The mass splittings $Δm_{12}=m(Υ_2(1D))-m(Υ_1(1D))$ and $Δm_{23}=m(Υ_3(1D))-m(Υ_2(1D))$ are $(11.8\\pm1.5\\pm0.4)$ MeV/$c^2$ and $(7.6\\pm2.4\\pm0.6)$ MeV/$c^2$, respectively.~We determine the energy dependence of the cross sections for $e^+e^-\\toΥ_J(1D)η$ and $e^+e^-\\toΥ_J(1D)π^+π^-$ for the $Υ_1(1D)$, $Υ_2(1D)$, and $Υ_3(1D)$ states, combined.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Rev. Lett. 137, 191901 (2026)",
  "arxiv": "2607.04369",
  "author_total": 400,
  "authors": [
    {
      "name": "Belle"
    },
    {
      "name": "Belle II Collaborations"
    },
    {
      "name": "M. Abumusabh"
    },
    {
      "name": "I. Adachi"
    },
    {
      "name": "K. Adamczyk"
    },
    {
      "name": "A. Aggarwal"
    },
    {
      "name": "H. Ahmed"
    },
    {
      "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": "T. Aushev"
    },
    {
      "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. Baur"
    },
    {
      "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": "A. Biswas"
    },
    {
      "name": "D. Biswas"
    },
    {
      "name": "A. Bobrov"
    },
    {
      "name": "D. Bodrov"
    },
    {
      "name": "A. Bondar"
    },
    {
      "name": "G. Bonvicini"
    },
    {
      "name": "A. Boschetti"
    },
    {
      "name": "A. Bozek"
    },
    {
      "name": "M. Bračko"
    },
    {
      "name": "P. Branchini"
    },
    {
      "name": "R. A. Briere"
    },
    {
      "name": "T. E. Browder"
    },
    {
      "name": "A. Budano"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7pfgdpdvk58tq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.04369",
  "fulltext_url": null,
  "id": "7pfgdpdvk58tq",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.04369",
  "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-ex"
    ],
    [
      "arxiv",
      "hep-ph"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7169481807",
  "pdf_url": "https://arxiv.org/pdf/2607.04369",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7pfgdpdvk58tq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:22Z",
      "native_id": "2607.04369",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.04369"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "First measurement of the masses of the $Υ_1(1D)$ and $Υ_3(1D)$ states and the energy dependence of the cross sections for $e^+e^-\\toΥ_J(1D)η$ and $e^+e^-\\toΥ_J(1D)π^+π^-$",
  "title_text": "First measurement of the masses of the Υ_1(1D) and Υ_3(1D) states and the energy dependence of the cross sections for e^+e^-→Υ_J(1D)η and e^+e^-→Υ_J(1D)π^+π^-",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:12Z",
  "url": "https://research.draconitic.com/paper/7pfgdpdvk58tq",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/9wrm-99hg",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}