{
  "annotation_id": "19dbbca8-aa0e-4df7-bad3-6caeebe5148c",
  "date_created": "2026-03-02T18:00:21.656000Z",
  "date_modified": "2026-03-02T18:00:21.656000Z",
  "file_hash": "e5881c5080ebecd8e23a7b952f882befb4ce30c7da8c911608f45efc0f2bbdeb",
  "private": false,
  "record": {
    "abstract": "The cross sections of the reaction $pp \\to N K Y$ for $K^+$ or $K^0$ mesons\nand $\\Lambda$ or $\\Sigma$ hyperons are calculated within the boson exchange\nmodel including pion and kaon exchange diagrams. We analyze the dependence of\nthe results on the accuracy of the input $\\pi N$ amplitude. By fixing the $\\pi\nNN $ coupling constant and the cut-off parameter ${\\Lambda}_{\\pi}$ at the $\\pi\nNN$ vertex we calculate the contribution from the kaon exchange diagram and\nobtain the ratio of the $KN \\Lambda $ and $KN \\Sigma $ coupling constants by a\nfit to the experimental data. This ratio is in a good agreement with the SU(6)\nprediction. Our calculated total cross sections for the different reaction\nchannels are fitted by simple expressions and compared with other\nparameterizations used in the literature. Furthermore, the gross features of\nthe production cross section close to threshold are discussed.",
    "arxiv_id": "nucl-th/9802019",
    "authors": [
      "A. Sibirtsev",
      "W. Cassing"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Strangeness production in proton-proton collisions",
    "url": "https://arxiv.org/abs/nucl-th/9802019"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8f7e17d4-b4ac-498e-b304-eb25de653ba3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}