{
  "annotation_id": "8cf6c607-8b15-4612-bc21-94300e242190",
  "date_created": "2026-03-02T18:00:15.407000Z",
  "date_modified": "2026-03-02T18:00:15.407000Z",
  "file_hash": "fe334af622128f7971db538af64822f787247b740f140ad7e008e28663318684",
  "private": false,
  "record": {
    "abstract": "Using multiple scattering theory the scattering lengths of $\\eta$ mesons on\nhelium nuclei are calculated and checked against final state $\\eta$\ninteractions from the $pd \\rightarrow \\eta ^3$He and $dd \\rightarrow \\eta ^4$He\nreactions. The existence of an $\\eta^4$He quasibound state is indicated.",
    "arxiv_id": "nucl-th/9502022",
    "authors": [
      "S. Wycech",
      "A. M. Green",
      "J. A. Niskanen"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.52.544",
    "journal_ref": "Phys.Rev.C52:544-553,1995",
    "title": "Are there eta-Helium bound states?",
    "url": "https://arxiv.org/abs/nucl-th/9502022"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "97355cf3-7c13-4c5e-a370-44f8379cd3ee",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}