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    "id": "lz-dark-matter-ws2024-shared-dataset-search-2025-2026",
    "title": "LZ dark-matter searches: conventional limits and an extended-energy recoil candidate",
    "summary": "The LZ collaboration combined 2022 and 2023–24 exposure in a conventional low-energy WIMP search, reporting no excess over expected backgrounds and setting model-dependent interaction limits. A later analysis of the overlapping 2023–24 data extended the recoil window and found one event compatible with a high-energy nuclear recoil; its model scan reported 2.6 sigma global and at most 3.4 sigma local tension with background.",
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    "area": "Particle astrophysics and dark matter",
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        "title": "Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment",
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        "title": "Search for dark matter particle interactions in an extended nuclear recoil energy window with the LUX-ZEPLIN (LZ) experiment",
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      "scope": "The LZ collaboration combined 2022 and 2023–24 exposure in a conventional low-energy WIMP search, reporting no excess over expected backgrounds and setting model-dependent interaction limits. A later analysis of the overlapping 2023–24 data extended the recoil window and found one event compatible with a high-energy nuclear recoil; its model scan reported 2.6 sigma global and at most 3.4 sigma local tension with background. The 2025 conventional and 2026 extended-energy searches use overlapping data and different selections, fiducial volumes, signal hypotheses and analysis methods; they are not independent discoveries. The 2026 analysis is explicitly non-blind because its artificial-event procedure did not cover the relevant high-energy region. One candidate is not evidence establishing a dark-matter particle; response calibration, non-Gaussian background tails and tested model space remain material. The 2025 limits are conditional on the stated halo, interaction and statistical models and include a power constraint. The 2026 paper is an arXiv preprint, not independently replicated or established as published. A correction was published for the 2025 analysis; its effect on comparisons with the later analysis remains to be assessed.",
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          "note": "Cited historical collaboration, not a platform organization account; individual attribution remains incomplete.",
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          "source": {
            "citation": "Search for dark matter particle interactions in an extended nuclear recoil energy window with the LUX-ZEPLIN (LZ) experiment",
            "url": "https://arxiv.org/pdf/2609.02823v1"
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          "source": {
            "citation": "Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment",
            "url": "https://arxiv.org/pdf/2410.17036v3"
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          "description": "Bibliographic/stated-result source; not a WRS proof verification",
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          "source": {
            "citation": "Search for dark matter particle interactions in an extended nuclear recoil energy window with the LUX-ZEPLIN (LZ) experiment",
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      "scope": {
        "description": "The 2025 conventional and 2026 extended-energy searches use overlapping data and different selections, fiducial volumes, signal hypotheses and analysis methods; they are not independent discoveries. The 2026 analysis is explicitly non-blind because its artificial-event procedure did not cover the relevant high-energy region. One candidate is not evidence establishing a dark-matter particle; response calibration, non-Gaussian background tails and tested model space remain material. The 2025 limits are conditional on the stated halo, interaction and statistical models and include a power constraint. The 2026 paper is an arXiv preprint, not independently replicated or established as published. A correction was published for the 2025 analysis; its effect on comparisons with the later analysis remains to be assessed.",
        "domain": "Particle astrophysics and dark matter"
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      "sources": [
        {
          "citation": "Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment",
          "url": "https://arxiv.org/pdf/2410.17036v3"
        },
        {
          "citation": "Search for dark matter particle interactions in an extended nuclear recoil energy window with the LUX-ZEPLIN (LZ) experiment",
          "url": "https://arxiv.org/pdf/2609.02823v1"
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      ],
      "statement": "# LZ dark-matter searches: conventional limits and an extended-energy recoil candidate\n\nThe LZ collaboration combined 2022 and 2023–24 exposure in a conventional low-energy WIMP search, reporting no excess over expected backgrounds and setting model-dependent interaction limits. A later analysis of the overlapping 2023–24 data extended the recoil window and found one event compatible with a high-energy nuclear recoil; its model scan reported 2.6 sigma global and at most 3.4 sigma local tension with background.\n\n## Scientific scope\n\nThe 2025 conventional and 2026 extended-energy searches use overlapping data and different selections, fiducial volumes, signal hypotheses and analysis methods; they are not independent discoveries. The 2026 analysis is explicitly non-blind because its artificial-event procedure did not cover the relevant high-energy region. One candidate is not evidence establishing a dark-matter particle; response calibration, non-Gaussian background tails and tested model space remain material. The 2025 limits are conditional on the stated halo, interaction and statistical models and include a power constraint. The 2026 paper is an arXiv preprint, not independently replicated or established as published. A correction was published for the 2025 analysis; its effect on comparisons with the later analysis remains to be assessed.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\n\n\nCredit belongs to the cited collaborations. The individual author list is incomplete; no sole discoverer or individual effort share is inferred.\n\n\n\n## Original sources\n\n- [Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment](https://arxiv.org/pdf/2410.17036v3)\n- [Search for dark matter particle interactions in an extended nuclear recoil energy window with the LUX-ZEPLIN (LZ) experiment](https://arxiv.org/pdf/2609.02823v1)\n",
      "summary": "The LZ collaboration combined 2022 and 2023–24 exposure in a conventional low-energy WIMP search, reporting no excess over expected backgrounds and setting model-dependent interaction limits. A later analysis of the overlapping 2023–24 data extended the recoil window and found one event compatible with a high-energy nuclear recoil; its model scan reported 2.6 sigma global and at most 3.4 sigma local tension with background.",
      "title": "LZ dark-matter searches: conventional limits and an extended-energy recoil candidate"
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    "id": "lz-dark-matter-ws2024-shared-dataset-search-2025-2026",
    "entry_id": "lz-dark-matter-ws2024-shared-dataset-search-2025-2026",
    "revision": 1,
    "title": "LZ dark-matter searches: conventional limits and an extended-energy recoil candidate",
    "context": "Particle astrophysics and dark matter",
    "track": "Source-reported experimental result or reusable measurement method",
    "band": "B",
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    "achievement_state": "SUPPORTED_SCOPED_RESULT",
    "what_changed": "The LZ collaboration combined 2022 and 2023–24 exposure in a conventional low-energy WIMP search, reporting no excess over expected backgrounds and setting model-dependent interaction limits. A later analysis of the overlapping 2023–24 data extended the recoil window and found one event compatible with a high-energy nuclear recoil; its model scan reported 2.6 sigma global and at most 3.4 sigma local tension with background.",
    "scope": "The LZ collaboration combined 2022 and 2023–24 exposure in a conventional low-energy WIMP search, reporting no excess over expected backgrounds and setting model-dependent interaction limits. A later analysis of the overlapping 2023–24 data extended the recoil window and found one event compatible with a high-energy nuclear recoil; its model scan reported 2.6 sigma global and at most 3.4 sigma local tension with background. The 2025 conventional and 2026 extended-energy searches use overlapping data and different selections, fiducial volumes, signal hypotheses and analysis methods; they are not independent discoveries. The 2026 analysis is explicitly non-blind because its artificial-event procedure did not cover the relevant high-energy region. One candidate is not evidence establishing a dark-matter particle; response calibration, non-Gaussian background tails and tested model space remain material. The 2025 limits are conditional on the stated halo, interaction and statistical models and include a power constraint. The 2026 paper is an arXiv preprint, not independently replicated or established as published. A correction was published for the 2025 analysis; its effect on comparisons with the later analysis remains to be assessed.",
    "evidence_summary": "The linked original works support the scoped statement and contribution attribution. WRS has not independently replayed experiments or reconstructed a full mathematical proof. The 2025 conventional and 2026 extended-energy searches use overlapping data and different selections, fiducial volumes, signal hypotheses and analysis methods; they are not independent discoveries. The 2026 analysis is explicitly non-blind because its artificial-event procedure did not cover the relevant high-energy region. One candidate is not evidence establishing a dark-matter particle; response calibration, non-Gaussian background tails and tested model space remain material. The 2025 limits are conditional on the stated halo, interaction and statistical models and include a power constraint. The 2026 paper is an arXiv preprint, not independently replicated or established as published. A correction was published for the 2025 analysis; its effect on comparisons with the later analysis remains to be assessed.",
    "references": [
      {
        "title": "Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment",
        "url": "https://arxiv.org/pdf/2410.17036v3",
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        "title": "Search for dark matter particle interactions in an extended nuclear recoil energy window with the LUX-ZEPLIN (LZ) experiment",
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