{
  "annotation_id": "b8208c5b-733f-4477-a719-4c80337686ee",
  "date_created": "2026-03-02T18:00:25.699000Z",
  "date_modified": "2026-03-02T18:00:25.699000Z",
  "file_hash": "09ebb901e1a22fb450656e0d92d3376247679d011d2241e67b7f435a96417cc0",
  "private": false,
  "record": {
    "abstract": "Nucleon resonances are investigated through the electromagnetic production of\nK-mesons. We study the kaon photoproduction process at tree-level and compare\nto a recently developed unitary K-matrix approach. Employing hadronic form\nfactors along with the proper gauge prescription yields suppression of the Born\nterms and leads a resonance dominated process for both K-Lambda and K-Sigma\nphotoproduction. Using new SAPHIR data we find the K+-Lambda photoproduction to\nbe dominated by the S11(1650) at threshold, with additional contributions from\nthe P11(1710) and P13(1720) states. The K-Sigma channel couples to a cluster of\nDelta resonances around W = 1900 MeV. We briefly discuss some tantalizing\nevidence for a missing D13 resonance around 1900 MeV with a strong branching\nratio into KLambda channel.",
    "arxiv_id": "nucl-th/9901066",
    "authors": [
      "C. Bennhold",
      "T. Mart",
      "A. Waluyo",
      "H. Haberzettl",
      "G. Penner",
      "T. Feuster",
      "U. Mosel"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Nucleon Resonances in Kaon Photoproduction",
    "url": "https://arxiv.org/abs/nucl-th/9901066"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8bd494f5-45b3-4812-af22-45ddfda14037",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}