{
  "abstract": "A meter-scale Fiber-Readout mOnolithic and Scatterer-embedded scintillator Tracker (FROST) was constructed and operated in the NINJA experiment to enable muon-track matching between the nuclear emulsion detectors and the downstream muon detector. The detector consists of a 1.32 m $\\times$ 1.40 m plastic scintillator plate assembled from optically bonded scatterer-embedded plates, with wavelength-shifting fibers arranged at a pitch of 10 mm. During J-PARC neutrino-beam operation, FROST achieved a data acquisition efficiency of 99.59% and a detection efficiency of 99.946$\\pm$0.006% for selected neutrino-induced muons well within the active area. A position reconstruction method based on the light-yield distribution was developed for both single- and multi-particle events. In a neutrino-interaction simulation, muon position resolutions of 1.77 mm and 1.61 mm were achieved in the two orthogonal readout directions, assuming correct muon identification. Using a beam-data sample dominated by single-muon events, upper limits on the position resolution of 2.20 mm and 2.03 mm were obtained for track angles below 20°. These results demonstrate that the FROST concept can be scaled up to a meter-scale active area while maintaining high detection efficiency and a position resolution well below the readout pitch under actual experimental conditions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.08278",
  "author_total": 36,
  "authors": [
    {
      "name": "N. Otani"
    },
    {
      "name": "S. Han"
    },
    {
      "name": "E. Abad Díaz"
    },
    {
      "name": "S. Aoki"
    },
    {
      "name": "D. Barčot"
    },
    {
      "name": "C. Bronner"
    },
    {
      "name": "T. Fukuda"
    },
    {
      "name": "M. Ghosh"
    },
    {
      "name": "L. Halić"
    },
    {
      "name": "K. Hasegawa"
    },
    {
      "name": "T. Hayakawa"
    },
    {
      "name": "Y. Hayasaka"
    },
    {
      "name": "K. Hayashi"
    },
    {
      "name": "D. Hirata"
    },
    {
      "name": "K. Indo"
    },
    {
      "name": "M. Jakkapu"
    },
    {
      "name": "A. Kasumi"
    },
    {
      "name": "T. Katori"
    },
    {
      "name": "T. Kawahara"
    },
    {
      "name": "M. Kawaue"
    },
    {
      "name": "T. Kikawa"
    },
    {
      "name": "B. Kliček"
    },
    {
      "name": "H. Kobayashi"
    },
    {
      "name": "B. Kovač"
    },
    {
      "name": "J. McKean"
    },
    {
      "name": "T. Matsuo"
    },
    {
      "name": "S. Mikado"
    },
    {
      "name": "A. Minamino"
    },
    {
      "name": "Y. Morimoto"
    },
    {
      "name": "Y. Nakamura"
    },
    {
      "name": "T. Nakaya"
    },
    {
      "name": "H. Oaira"
    },
    {
      "name": "N. Onda"
    },
    {
      "name": "H. Oshima"
    },
    {
      "name": "O. Sato"
    },
    {
      "name": "for the NINJA Collaboration"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cft90hbev9pg3.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.08278",
  "fulltext_url": null,
  "id": "cft90hbev9pg3",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.08278",
  "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",
      "physics.ins-det"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.08278",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cft90hbev9pg3.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T18:21:30Z",
      "native_id": "2611.08278",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.08278"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.ins-det",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Construction and performance evaluation of a meter-scale monolithic scintillator tracker with embedded scatterers",
  "title_text": "Construction and performance evaluation of a meter-scale monolithic scintillator tracker with embedded scatterers",
  "type": "preprint",
  "updated_at": "2026-11-06T18:21:30Z",
  "url": "https://research.draconitic.com/paper/cft90hbev9pg3",
  "venue": "arXiv",
  "versions": []
}