{
  "abstract": "The NEXT-100 detector is a high-pressure xenon time projection chamber utilising electroluminescence amplification for sub-1% FWHM energy resolution and topological discrimination, two key attributes required to achieve the NEXT programme's overarching goal of detecting neutrinoless double beta decay ($0 νββ$). The detector has completed its first physics run at the Laboratorio Subterráneo de Canfranc (LSC), with xenon at a pressure of $\\sim$4 bar. In this paper we report on the first validation of NEXT-100's topological performance and present the first topological analysis conducted at low pressure within the detector programme. A Monte Carlo study characterising the effects of pressure on track topology is presented, with qualitative agreement observed in data. We then demonstrate the topological discrimination capabilities for $0νββ$-like events from $^{208}$Tl decays using a cut-based method considered the 'baseline' in NEXT's topological programme, upon which all future analyses will improve. The analysis described applies a set of selection cuts before implementing a background discrimination algorithm that yields a reported signal efficiency for double-electron tracks and background acceptance for single-electron tracks of 75.6 $\\pm$ 1.9 (stat.) $^{+3.4}_{-4.1}$ (syst.) % and 14.7 $\\pm$ 0.4 (stat.) $^{+0.7}_{-0.8}$ (syst.) %. These results demonstrate the excellent topological discrimination capabilities of the NEXT-100 detector in line with NEXT-White, which achieved a signal efficiency and background acceptance of 71.6 $\\pm$ 1.5 (stat.) $\\pm$ 0.3 (syst.) % and 20.6 $\\pm$ 0.4 (stat.) $\\pm$ 0.3 (syst.) % respectively.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.12973",
  "author_total": 112,
  "authors": [
    {
      "name": "J. Waiton"
    },
    {
      "name": "H. Almazán"
    },
    {
      "name": "B. Palmeiro"
    },
    {
      "name": "G. Martínez-Lema"
    },
    {
      "name": "R. Guenette"
    },
    {
      "name": "V. Álvarez"
    },
    {
      "name": "L. Arazi"
    },
    {
      "name": "I. J. Arnquist"
    },
    {
      "name": "F. Auria-Luna"
    },
    {
      "name": "S. Ayet"
    },
    {
      "name": "Y. Ayyad"
    },
    {
      "name": "C. D. R. Azevedo"
    },
    {
      "name": "F. Ballester"
    },
    {
      "name": "J. E. Barcelon"
    },
    {
      "name": "M. del Barrio-Torregrosa"
    },
    {
      "name": "J. M. Benlloch-Rodríguez"
    },
    {
      "name": "F. I. G. M. Borges"
    },
    {
      "name": "A. Brodoline"
    },
    {
      "name": "C. Cabo"
    },
    {
      "name": "A. Castillo"
    },
    {
      "name": "E. Church"
    },
    {
      "name": "M. Cid"
    },
    {
      "name": "X. Cid"
    },
    {
      "name": "C. A. N. Conde"
    },
    {
      "name": "C. Cortes-Parra"
    },
    {
      "name": "F. P. Cossío"
    },
    {
      "name": "R. Coupe"
    },
    {
      "name": "E. Dey"
    },
    {
      "name": "P. Dietz"
    },
    {
      "name": "C. Echeverria"
    },
    {
      "name": "M. Elorza"
    },
    {
      "name": "R. Esteve"
    },
    {
      "name": "R. Felkai"
    },
    {
      "name": "L. M. P. Fernandes"
    },
    {
      "name": "P. Ferrario"
    },
    {
      "name": "P. Ferrero Mancheño"
    },
    {
      "name": "F. W. Foss"
    },
    {
      "name": "Z. Freixa"
    },
    {
      "name": "J. García-Barrena"
    },
    {
      "name": "J. J. Gómez-Cadenas"
    },
    {
      "name": "J. W. R. Grocott"
    },
    {
      "name": "J. Hauptman"
    },
    {
      "name": "C. A. O. Henriques"
    },
    {
      "name": "J. A. Hernando Morata"
    },
    {
      "name": "P. Herrero-Gómez"
    },
    {
      "name": "V. Herrero"
    },
    {
      "name": "C. Hervés Carrete"
    },
    {
      "name": "Y. Ifergan"
    },
    {
      "name": "A. F. B. Isabel"
    },
    {
      "name": "B. J. P. Jones"
    },
    {
      "name": "F. Kellerer"
    },
    {
      "name": "L. Larizgoitia"
    },
    {
      "name": "A. Larumbe"
    },
    {
      "name": "P. Lebrun"
    },
    {
      "name": "F. Lopez"
    },
    {
      "name": "N. López-March"
    },
    {
      "name": "R. Madigan"
    },
    {
      "name": "R. D. P. Mano"
    },
    {
      "name": "A. Marauri"
    },
    {
      "name": "A. P. Marques"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/52nzvd9500tgm.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.12973",
  "fulltext_url": null,
  "id": "52nzvd9500tgm",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.12973",
  "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"
    ],
    [
      "openalex",
      "3106|Neutrino Physics Research"
    ]
  ],
  "openalex": "W7213202511",
  "pdf_url": "https://arxiv.org/pdf/2609.12973",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-11",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/52nzvd9500tgm.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:07Z",
      "native_id": "2609.12973",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.12973"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Demonstrating topological identification capabilities of the NEXT experiment at low pressure",
  "title_text": "Demonstrating topological identification capabilities of the NEXT experiment at low pressure",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:07Z",
  "url": "https://research.draconitic.com/paper/52nzvd9500tgm",
  "venue": "arXiv",
  "versions": []
}