{
  "annotation_id": "52546dab-b423-41be-92e1-e07f42a66570",
  "date_created": "2026-03-02T18:00:22.152000Z",
  "date_modified": "2026-03-02T18:00:22.152000Z",
  "file_hash": "91caf2f9729b906e1c083eed57b29b9edb804d09556f9a85e3bec69f8f082616",
  "private": false,
  "record": {
    "abstract": "The optical potential for the $\\eta$-meson is calculated. This is based on a\nnew determination of a large $\\eta$-N scattering length and recent experiments\nof $\\eta$ production in two nucleon collisions. These determine the $\\eta$ -\nnuclear potential well to be about 45 MeV deep and able to support S, P, D and\nF quasibound states. Some of the higher angular momentum states are fairly\nnarrow and offer a chance of experimental detection.",
    "arxiv_id": "nucl-th/9807020",
    "authors": [
      "J. Kulpa",
      "S. Wycech",
      "A. M. Green"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "On quasi-bound states in eta-nucleys systems",
    "url": "https://arxiv.org/abs/nucl-th/9807020"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dc67cb23-ba8c-4a7f-86af-f73984007537",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}