{
  "annotation_id": "9eb35c7d-f5e5-4bd1-88f4-b7a7d36a8b1e",
  "date_created": "2026-03-02T18:00:11.548000Z",
  "date_modified": "2026-03-02T18:00:11.548000Z",
  "file_hash": "1a5c615e8a746fb72ab50c8f537a2e1fe23e1dad6634ab53c892731050b4ff24",
  "private": false,
  "record": {
    "abstract": "We compute pion-nucleon scattering at tree-level within a gauged linear sigma\nmodel which contains the nucleon and its chiral partner. Such an investigation\nin principle allows to make definite predictions as to whether the main\ncontribution to the nucleon mass comes from the chiral condensate or from the\nmixing with its chiral partner. We find that there seems to be no set of model\nparameters that allows for a simultaneous description of all experimentally\nmeasured scattering lengths and range parameters. This indicates the need to\nimprove the dynamical ingredients of the model.",
    "arxiv_id": "nucl-th/0702076",
    "authors": [
      "Susanna Wilms",
      "Francesco Giacosa",
      "Dirk H. Rischke"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1142/S0218301307007982",
    "journal_ref": "Int.J.Mod.Phys.E16:2388-2393,2007",
    "title": "Pion-nucleon scattering within a gauged linear sigma model with   parity-doubled nucleons",
    "url": "https://arxiv.org/abs/nucl-th/0702076"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "62cf9623-2d06-4031-8272-b5388214adfc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}