{
  "abstract": "A search for the $e^+ e^-\\to f_1(1285)$ reaction is performed with the CMD-3 detector at the VEPP-2000 collider. Data from a scan in the center-of-mass energy range Ec.m.=1.20--1.36 GeV with 109.1 pb$^{-1}$ of the integrated luminosity is used. A dedicated 51.7 pb$^{-1}$ have been collected at the $f_1(1285)$ resonance peak energy Ec.m.=1282 MeV, where $26.5 \\pm 7.4$ events have been found in the $e^+ e^-\\toηπ^0π^0$ reaction. No indication of the signal is observed in the scan data. We interpret the result as a statistical 4.5$σ$ evidence of the C-even resonance production in the $e^+ e^-\\to f_1(1285)\\toηπ^0π^0$ reaction via the two-photon interaction. The production cross section is found to be $σ(e^+ e^-\\to f_1) = 0.074 \\pm 0.021 \\pm 0.010$ nb, and the corresponding branching fraction to the $e^+ e^-$ pair is $B(f_1(1285)\\to e^+e^-) = (8.3 \\pm 2.3 \\pm 1.1)\\times 10^{-9}$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.03417",
  "author_total": 56,
  "authors": [
    {
      "name": "E. P. Solodov"
    },
    {
      "name": "R. R. Akhmetshin"
    },
    {
      "name": "A. N. Amirkhanov"
    },
    {
      "name": "A. V. Anisenkov"
    },
    {
      "name": "V. M. Aulchenko"
    },
    {
      "name": "N. S. Bashtovoy"
    },
    {
      "name": "E. V. Bedarev"
    },
    {
      "name": "D. E. Berkaev"
    },
    {
      "name": "A. E. Bondar"
    },
    {
      "name": "A. V. Bragin"
    },
    {
      "name": "D. E. Chistyakov"
    },
    {
      "name": "V. S. Denisov"
    },
    {
      "name": "E. A. Eminov"
    },
    {
      "name": "D. A. Epifanov"
    },
    {
      "name": "L. B. Epshteyn"
    },
    {
      "name": "A. L. Erofeev"
    },
    {
      "name": "G. V. Fedotovich"
    },
    {
      "name": "L. B. Fomin"
    },
    {
      "name": "A. O. Gorkovenko"
    },
    {
      "name": "A. A. Grebenuk"
    },
    {
      "name": "S. S. Gribanov"
    },
    {
      "name": "D. N. Grigoriev"
    },
    {
      "name": "F. V. Ignatov"
    },
    {
      "name": "V. L. Ivanov"
    },
    {
      "name": "A. S. Kasaev"
    },
    {
      "name": "S. V. Karpov"
    },
    {
      "name": "V. F. Kazanin"
    },
    {
      "name": "I. A. Koop"
    },
    {
      "name": "A. A. Korobov"
    },
    {
      "name": "A. N. Kozyrev"
    },
    {
      "name": "P. P. Krokovny"
    },
    {
      "name": "A. S. Kuzmin"
    },
    {
      "name": "T. A. Kuznetsov"
    },
    {
      "name": "I. B. Logashenko"
    },
    {
      "name": "P. A. Lukin"
    },
    {
      "name": "K. Yu. Mikhailov"
    },
    {
      "name": "I. V. Obraztsov"
    },
    {
      "name": "V. G. Petrochenko"
    },
    {
      "name": "N. A. Petrov"
    },
    {
      "name": "A. S. Popov"
    },
    {
      "name": "S. A. Rastigeev"
    },
    {
      "name": "Yu. A. Rogovsky"
    },
    {
      "name": "A. A. Ruban"
    },
    {
      "name": "A. E. Ryzhenenkov"
    },
    {
      "name": "A. V. Semenov"
    },
    {
      "name": "V. E. Shebalin"
    },
    {
      "name": "D. N. Shemyakin"
    },
    {
      "name": "B. A. Shwartz"
    },
    {
      "name": "D. B. Shwartz"
    },
    {
      "name": "M. V. Timoshenko"
    },
    {
      "name": "V. M. Titov"
    },
    {
      "name": "A. A. Talyshev"
    },
    {
      "name": "S. S. Tolmachev"
    },
    {
      "name": "A. I. Vorobiov"
    },
    {
      "name": "D. S. Zhadan"
    },
    {
      "name": "Yu. V. Yudin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0kcvq0hxc789d.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.03417",
  "fulltext_url": null,
  "id": "0kcvq0hxc789d",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.03417",
  "language": null,
  "licence": "CC0-1.0",
  "licence_label": "CC0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/publicdomain/zero/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ex"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7172531243",
  "pdf_url": "https://arxiv.org/pdf/2608.03417",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-31",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0kcvq0hxc789d.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:58Z",
      "native_id": "2608.03417",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.03417"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Evidence of the $e^+ e^-\\to f_1(1285)$ reaction with the CMD-3 detector at VEPP-2000",
  "title_text": "Evidence of the e^+ e^-→ f_1(1285) reaction with the CMD-3 detector at VEPP-2000",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:17Z",
  "url": "https://research.draconitic.com/paper/0kcvq0hxc789d",
  "venue": "arXiv",
  "versions": []
}