{
  "annotation_id": "ba082782-de07-47ff-a027-e87f9875f505",
  "date_created": "2026-03-02T18:00:29.417000Z",
  "date_modified": "2026-03-02T18:00:29.417000Z",
  "file_hash": "49a5fc0e301f26b62f6656e4aeff7e3780ed6025fab99ebc8cb1afd7b8f18ee6",
  "private": false,
  "record": {
    "abstract": "We analyze Pion Nucleon Scattering up to 700 MeV using a simple,\nrelativistic, unitary model\\cite{1}. The kernel of the integral equation\nincludes nucleon, roper, delta, D_13 as well as S_11 poles with their\ncorresponding crossed pole terms approximated by contact interactions. The s-\nand p- wave phase shifts are calculated from the model and shown to agree very\nwell with the values derived from pi N scattering data \\cite {2}. All\nparameters which involve S_{11} are presented.",
    "arxiv_id": "nucl-th/9911076",
    "authors": [
      "Yohanes Surya",
      "Kam Chan Hin",
      "T. C. Au Yeung",
      "W. Z. Shangguan",
      "Wirawan Purwanto",
      "Eddy Yusuf",
      "Darmadi Kusno",
      "Oki Gunawan"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "The role of S_11 resonance in pi N Scattering",
    "url": "https://arxiv.org/abs/nucl-th/9911076"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "772e62b7-d815-41be-8535-fedcc76615c6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}