{
  "abstract": "The LUX--ZEPLIN Collaboration recently reported one event at $E_{\\mathrm{nr}}=248\\pm23~\\mathrm{keV}$ with an exposure of $2.84~\\mathrm{tonne\\cdot yr}$. In this Letter, we interpret this feature using endothermic dark matter (DM). We consider both direct scattering of the surviving ground-state halo component and the contribution of excited states produced by terrestrial upscattering. Our calculations show that explaining the high-energy event requires $m_χ\\gtrsim500~\\mathrm{GeV}$ and a mass splitting of $\\mathcal{O}(300)~\\mathrm{keV}$, for which the production of excited states inside the Earth is kinematically forbidden. For $\\barσ_n=10^{-37}~\\mathrm{cm^2}$, an illustrative two-bin likelihood analysis yields a representative best-fit point at $(m_χ,δ)\\simeq(1.105~\\mathrm{TeV},350~\\mathrm{keV})$. The preferred parameter region may be tested by the planned CRESST upgrade.",
  "abstract_shown": true,
  "affiliations": [
    "Institute for Astroparticle Physics (IAP) , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Eggenstein-Leopoldshafen , Germany",
    "Centre for Theoretical Physics , Henan Normal University , Xinxiang 453007 , P. R. China",
    "Institute of Theoretical Physics , Chinese Academy of Sciences , Beijing 100190 , P. R. China",
    "Department of Physics and",
    "Institute of Theoretical Physics , Nanjing Normal University , Nanjing , 210023 , P. R. China"
  ],
  "article_type": null,
  "arxiv": "2609.01475",
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Liangliang Su",
      "orcid": "0000-0003-1749-6893"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Jin Min Yang"
    },
    {
      "affs": [
        3,
        4
      ],
      "name": "Wen-Na Yang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a5c3n4hx78avd.bib",
  "cited_by": 76,
  "doi": "10.48550/arxiv.2609.01475",
  "fulltext_url": null,
  "id": "a5c3n4hx78avd",
  "issns": [
    "2331-8422"
  ],
  "landing_url": "https://arxiv.org/abs/2609.01475",
  "language": "en",
  "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-ph"
    ],
    [
      "openalex",
      "3106|Dark Matter and Cosmic Phenomena"
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  "openalex": "W7206211637",
  "pdf_url": "https://arxiv.org/pdf/2609.01475",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": "Cornell University",
  "ris": "https://research.draconitic.com/paper/a5c3n4hx78avd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:00Z",
      "native_id": "2609.01475",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.01475"
    },
    {
      "first_seen": "2026-11-07T13:20:44Z",
      "native_id": "W7206211637",
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      "url": "https://arxiv.org/abs/2609.01475"
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  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Inelastic Dark Matter Signature at High Recoil Energy in LUX-ZEPLIN and CRESST",
  "title_text": "Inelastic Dark Matter Signature at High Recoil Energy in LUX-ZEPLIN and CRESST",
  "type": "preprint",
  "updated_at": "2026-11-09T13:21:01Z",
  "url": "https://research.draconitic.com/paper/a5c3n4hx78avd",
  "venue": "arXiv",
  "versions": []
}