{
  "abstract": "In the experiment with the SND detector at the VEPP-2000 $e^+e^-$ collider, a search is performed for the direct production of the $C$-even $f_1(1285)$ resonance in $e^+e^-$ collisions. The analysis is based on data with an integrated luminosity of about 200 pb$^{-1}$, accumulated in the center-of-mass energy range of 1.14--1.46 GeV, of which about 72 pb$^{-1}$ were recorded near the maximum of the $f_1(1285)$ resonance. The $f_1(1285)$ production cross section at the resonance maximum $σ(e^+e^-\\to f_1)=(31\\pm 13\\pm 2)$ pb and the branching fraction $B(f_1(1285)\\to e^+e^-)=(3.5\\pm 1.4\\pm 0.3)\\times 10^{-9}$ have been measured. The significance of the observation of the $e^+e^-\\to f_1(1285)$ process is $2.5σ$. Since the significance is low, we also present the upper limits at the 90% confidence level: $σ(e^+e^-\\to f_1)<48\\mbox{ pb}$ and $B(f_1(1285)\\to e^+e^-)<5.4\\times 10^{-9}$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.11057",
  "author_total": 45,
  "authors": [
    {
      "name": "SND Collaboration"
    },
    {
      "name": "M. N. Achasov"
    },
    {
      "name": "A. E. Alizzi"
    },
    {
      "name": "A. Yu. Barnyakov"
    },
    {
      "name": "E. V. Bedarev"
    },
    {
      "name": "K. I. Beloborodov"
    },
    {
      "name": "A. V. Berdyugin"
    },
    {
      "name": "D. E. Berkaev"
    },
    {
      "name": "A. G. Bogdanchikov"
    },
    {
      "name": "A. A. Botov"
    },
    {
      "name": "D. E. Chistyakov"
    },
    {
      "name": "T. V. Dimova"
    },
    {
      "name": "V. P. Druzhinin"
    },
    {
      "name": "R. A. Efremov"
    },
    {
      "name": "L. V. Kardapoltsev"
    },
    {
      "name": "A. S. Kasaev"
    },
    {
      "name": "A. A. Kattsin"
    },
    {
      "name": "V. R. Khamidullin"
    },
    {
      "name": "A. G. Kharlamov"
    },
    {
      "name": "I. A. Koop"
    },
    {
      "name": "A. A. Korol"
    },
    {
      "name": "D. P. Kovrizhin"
    },
    {
      "name": "A. S. Kupich"
    },
    {
      "name": "A. P. Kryukov"
    },
    {
      "name": "A. R. Mamedov"
    },
    {
      "name": "N. A. Melnikova"
    },
    {
      "name": "N. Yu. Muchnoi"
    },
    {
      "name": "A. E. Obrazovsky"
    },
    {
      "name": "A. A. Oorzhak"
    },
    {
      "name": "I. V. Ovtin"
    },
    {
      "name": "E. V. Pakhtusova"
    },
    {
      "name": "I. A. Polomoshnov"
    },
    {
      "name": "K. V. Pugachev"
    },
    {
      "name": "S"
    },
    {
      "name": "A. Rastigeev"
    },
    {
      "name": "Yu. A. Rogovsky"
    },
    {
      "name": "V. A. Romanov"
    },
    {
      "name": "S. I. Serednyakov"
    },
    {
      "name": "D. A. Shtol"
    },
    {
      "name": "Z. K. Silagadze"
    },
    {
      "name": "K. D. Sungurov"
    },
    {
      "name": "I. K. Surin"
    },
    {
      "name": "Yu. V. Usov"
    },
    {
      "name": "V. N. Zhabin"
    },
    {
      "name": "V. V. Zhulanov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3xa7z94mmvvxe.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.11057",
  "fulltext_url": null,
  "id": "3xa7z94mmvvxe",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.11057",
  "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"
    ],
    [
      "openalex",
      "3106|Quantum Chromodynamics and Particle Interactions"
    ]
  ],
  "openalex": "W7212279455",
  "pdf_url": "https://arxiv.org/pdf/2609.11057",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3xa7z94mmvvxe.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:41Z",
      "native_id": "2609.11057",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.11057"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Search for the process $e^+e^-\\to f_1(1285)$ at the SND detector",
  "title_text": "Search for the process e^+e^-→ f_1(1285) at the SND detector",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:41Z",
  "url": "https://research.draconitic.com/paper/3xa7z94mmvvxe",
  "venue": "arXiv",
  "versions": []
}