{
  "annotation_id": "630d6679-9c93-4631-8171-14913223209e",
  "date_created": "2026-03-02T18:00:22.447000Z",
  "date_modified": "2026-03-02T18:00:22.447000Z",
  "file_hash": "19998fee6aa7c88a6e8890f805e3f2f0312c7ed48da230f4d03e96790bdb4fa4",
  "private": false,
  "record": {
    "abstract": "The general gauge-invariant photoproduction formalism given by Haberzettl is\napplied to kaon photoproduction off the nucleon at the tree level, with form\nfactors describing composite nucleons. We demonstrate that, in contrast to\nOhta\u0027s gauge-invariance prescription, this formalism allows electric current\ncontributions to be multiplied by a form factor, i.e., they do not need to be\ntreated like bare currents. Numerical results show that Haberzettl\u0027s gauge\nprocedure, when compared to Ohta\u0027s, leads to much improved $\\chi^2$ values.\nMoreover, predictions for the new Bonn SAPHIR data for $p(\\gamma,K^+)\\Lambda$\nare given.",
    "arxiv_id": "nucl-th/9809026",
    "authors": [
      "H. Haberzettl",
      "C. Bennhold",
      "T. Mart",
      "T. Feuster"
    ],
    "categories": [
      "nucl-th"
    ],
    "journal_ref": "Few Body Syst.Suppl.10:515-518,1999",
    "title": "Kaon photoproduction with form factors in a gauge-invariant approach",
    "url": "https://arxiv.org/abs/nucl-th/9809026"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "49a78e50-3307-493f-b71b-9886ba454c19",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}