{
  "abstract": "Near 57 keV, destructive interference makes argon-40 almost transparent to neutrons. The 0.4% of argon-36 and argon-38 in natural argon then supply over 90% of its opacity, amplified 230-fold. Published transmission data rule out the argon-36 evaluation FLUKA uses by default, even with every other isotope made transparent, and bound its cross section in the window to 2-11 b. In a DUNE-scale detector, switching to the data-consistent evaluations moves the fiducial fraction of argon-41 calibration captures by 9-13% while the total yield changes by only 2%: the effect is on where captures occur, not how many.",
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  "article_type": null,
  "arxiv": "2609.37087",
  "author_total": 1,
  "authors": [
    {
      "name": "Yasser Maghrbi"
    }
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  "bibtex": "https://research.draconitic.com/paper/2h1354bn4s2pg.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.37087",
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  "pdf_url": "https://hal.science/hal-05767585/document",
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  "published": "2026-09-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2h1354bn4s2pg.ris",
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    {
      "first_seen": "2026-10-30T12:17:42Z",
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      "first_seen": "2026-10-30T12:25:31Z",
      "native_id": "2609.37087",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.37087"
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  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.ins-det",
      "subfield": "applied-instrumentation"
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    {
      "field": "physics",
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    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
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  ],
  "title": "Trace isotopes set the neutron horizon of liquid argon",
  "title_text": "Trace isotopes set the neutron horizon of liquid argon",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:31Z",
  "url": "https://research.draconitic.com/paper/2h1354bn4s2pg",
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