{
  "abstract": "Coherent elastic neutrino-nucleus scattering (CE$ν$NS) provides a uniquely sensitive probe of neutrino properties, but its detection requires pushing energy thresholds to the sub-keV scale while controlling backgrounds. The CONUS+ experiment, located at the Leibstadt nuclear power plant, reported the first observation of CE$ν$NS using reactor antineutrinos in 2025. Following a detector upgrade that replaced three of the original 1 kg high-purity germanium detectors with larger 2.42 kg diodes, this paper presents the analysis of the CONUS+ run 2 dataset, including the detector characterization, the background model, the signal prediction and expected sensitivity, and the extraction of the CE$ν$NS signal. The new detectors reach a background level per unit mass reduced by approximately a factor of two relative to the original detectors, while reaching energy thresholds between 140 and 170 eV$_{ee}$. With an exposure of 1296 kg$\\cdot$days reactor-on and 86 kg$\\cdot$days reactor-off, a blind likelihood analysis fitting directly the number of signal counts yields $N_s = 1555 \\pm 152$ CE$ν$NS events, corresponding to a significance of 10.2$\\,σ$. The result is in agreement with the Standard Model expectation of $1701 \\pm 198$ events, with $N_s/N_{\\mathrm{SM}} = 0.91 \\pm 0.14$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.37345",
  "author_total": 19,
  "authors": [
    {
      "name": "N. Ackermann"
    },
    {
      "name": "H. Bonet"
    },
    {
      "name": "C. Buck"
    },
    {
      "name": "J. Hakenmüller"
    },
    {
      "name": "G. Heusser"
    },
    {
      "name": "M. Lindner"
    },
    {
      "name": "W. Maneschg"
    },
    {
      "name": "M. Meier"
    },
    {
      "name": "S. Mertens"
    },
    {
      "name": "D. Piani"
    },
    {
      "name": "M. Rank"
    },
    {
      "name": "T. Rink"
    },
    {
      "name": "E. Sánchez García"
    },
    {
      "name": "Y. Shi"
    },
    {
      "name": "L. Schönfeld"
    },
    {
      "name": "I. Stalder"
    },
    {
      "name": "H. Strecker"
    },
    {
      "name": "J. Wendel"
    },
    {
      "name": "J. Woenckhaus"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0aagfdqj8sk1b.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.37345",
  "fulltext_url": null,
  "id": "0aagfdqj8sk1b",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.37345",
  "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"
    ],
    [
      "arxiv",
      "physics.ins-det"
    ],
    [
      "openalex",
      "3106|Neutrino Physics Research"
    ]
  ],
  "openalex": "W7224130978",
  "pdf_url": "https://arxiv.org/pdf/2610.37345",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0aagfdqj8sk1b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2610.37345",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.37345"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.ins-det",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Analysis of CONUS+ run 2: Detector performance, background model and CE$ν$NS measurement",
  "title_text": "Analysis of CONUS+ run 2: Detector performance, background model and CEνNS measurement",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/0aagfdqj8sk1b",
  "venue": "arXiv",
  "versions": []
}