{
  "annotation_id": "a534ccee-7de7-4826-8c07-21309b5cdb12",
  "date_created": "2026-03-02T18:00:18.803000Z",
  "date_modified": "2026-03-02T18:00:18.803000Z",
  "file_hash": "6d3a38899c914461e93e08d4bc2d5925ec2014911463c38c5bd9250fbfa2f21e",
  "private": false,
  "record": {
    "abstract": "In an effective Lagrangian model employing the K-matrix approximation we\nextract nucleon resonance parameters. To this end we analyze simultaneously all\navailable data for reactions involving the final states $\\pi N$, $\\pi\\pi N$,\n$\\eta N$ and $K \\Lambda$ in the energy range $m_N + m_{\\pi} \\le \\sqrt s \\le\n1.9$ GeV. The background contributions are generated consistently from the\nrelevant Feynman amplitudes, thus significantly reducing the number of free\nparameters.",
    "arxiv_id": "nucl-th/9708051",
    "authors": [
      "T. Feuster",
      "U. Mosel"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.58.457",
    "journal_ref": "Phys.Rev.C58:457-488,1998",
    "title": "A unitary model for meson-nucleon scattering",
    "url": "https://arxiv.org/abs/nucl-th/9708051"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bb5644ea-4555-45b3-8c8a-5427f5f48460",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}