{
  "abstract": "We explore aspects of an unorthodox ton-scale xenon gas time projection chamber detector operated at normal temperature and pressure (NTP), designed for $0νββ$ discovery at $\\sim10^{27}$ year sensitivity. At fixed active mass, a greater transparency to $γ$-ray backgrounds and better track clarity exists at NTP relative to higher density. Operation at NTP also alleviates difficulties with pressure containment and significantly reduces HV requirements. With metre-scale electron tracks at a few MeV, event topology can be used to efficiently reject the copious $γ$-ray backgrounds by factors ranging from 550--1200, largely compensating for the greater surface area of the detector. Event topology is captured from anode plane signals combined with sensing the secondary ion component arriving at the cathode plane. A molecular gas additive limits diffusion of the secondary electron tracks to below a cm and provides stable proportional avalanche gain. An energy resolution $δ$E/E $\\leq$ 1\\% FWHM seems possible. A 100 kg scale demonstrator for this detector technology could lead directly to a ton-scale search.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.07378",
  "author_total": 3,
  "authors": [
    {
      "name": "Y. Mei"
    },
    {
      "name": "K. Mistry"
    },
    {
      "name": "D. R. Nygren"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/425ps6mjxzw65.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.07378",
  "fulltext_url": null,
  "id": "425ps6mjxzw65",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.07378",
  "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",
      "3106|Particle Detector Development and Performance"
    ]
  ],
  "openalex": "W7212014055",
  "pdf_url": "https://arxiv.org/pdf/2609.07378",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-07",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/425ps6mjxzw65.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2609.07378",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.07378"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.ins-det",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Ton-scale Xenon Gas TPC for $0νββ$ Search at Atmospheric Pressure",
  "title_text": "Ton-scale Xenon Gas TPC for 0νββ Search at Atmospheric Pressure",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:17Z",
  "url": "https://research.draconitic.com/paper/425ps6mjxzw65",
  "venue": "arXiv",
  "versions": []
}