{
  "annotation_id": "94f0231d-2d17-46fd-bdaf-6a29a29492b5",
  "date_created": "2026-02-17T05:53:16.073000Z",
  "date_modified": "2026-02-17T05:53:16.073000Z",
  "file_hash": "8f2d3a2a0e6cfa50c006a8e7be36b019064a5e64a5962a5dfc715740b2e9bc82",
  "private": false,
  "record": {
    "abstract": "The BESIII experiment at BEPCII provides a clean environment to test baryon-dark sector connections and baryon-number violation. Using $10^{10}$ $J/\\psi$ events, searches were performed for $\\Sigma^{+}\\to p+\\text{inv}$, $\\Xi^{-}\\to\\pi^{-}+\\text{inv}$, and $\\bar{\\Lambda}-\\Lambda$ oscillations. No excess was observed, yielding $\\mathcal{B}(\\Sigma^{+}\\to p+\\text{inv})\u003c3.2\\times10^{-5}$, $\\mathcal{B}(\\Xi^{-}\\to\\pi^{-}+\\text{inv})\u003c(4-7)\\times10^{-5}$, and $P(\\Lambda)\u003c4.4\\times10^{-6}$ (90\\% C.L.). These are the most stringent limits on invisible baryon decays and $\\Delta B=2$ transitions in strange baryons, probing new physics beyond the Standard Model.",
    "arxiv_id": "2601.08140",
    "authors": [
      "Amit Pathak"
    ],
    "categories": [
      "hep-ex"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Search for new physics with baryons at BESIII",
    "url": "https://arxiv.org/abs/2601.08140",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "399a396d-b621-4797-9a7e-b3d21d7a8a44",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}