{
  "annotation_id": "8c8f7795-7339-4e2b-965e-ee353c71188c",
  "date_created": "2026-03-02T18:00:14.169000Z",
  "date_modified": "2026-03-02T18:00:14.169000Z",
  "file_hash": "67be918501e5368824049ba9013a70a46dc17cc311f7c1238a59c36193a352aa",
  "private": false,
  "record": {
    "abstract": "The elementary production cross sections $\\pi \\Delta \\rightarrow Y K$\n$(Y=\\Sigma,\\,\\, \\Lambda)$ and $\\pi N \\rightarrow Y K$ are needed to describe\nkaon production in heavy ion collisions. The $\\pi N \\rightarrow Y K$ reactions\nwere studied previously by a resonance model. The model can explain the\nexperimental data quite well \\cite{tsu}. In this article, the total cross\nsections $\\pi \\Delta \\rightarrow Y K$ at intermediate energies (from the kaon\nproduction threshold to3 GeV of $\\pi \\Delta$ center-of-mass energy) are\ncalculated for the first time using the same resonance model. The resonances,\n$N(1710)\\,I(J^P) = \\frac{1}{2}(\\frac{1}{2}^+)$ and $N(1720)\\, \\frac{1}{2}\n(\\frac{3}{2}^+)$ for the $\\pi \\Delta \\rightarrow \\Sigma K$ reactions, and\n$N(1650)\\, \\frac{1}{2} (\\frac{1}{2}^-)$, $N(1710)\\, \\frac{1}{2}\n(\\frac{1}{2}^+)$ and $N(1720)\\, \\frac{1}{2} (\\frac{3}{2}^+)$ for the $\\pi\n\\Delta \\rightarrow \\Lambda K$ reactions are taken into account coherently as\nthe intermediate states in the calculations. Also t-channel $K^*(892)\n\\frac{1}{2}(1^-)$ vector meson exchange is included. The results show that\n$K^*(892)$ exchange is neglegible for the $\\pi \\Delta \\rightarrow \\Sigma K$\nreactions, whereas this meson does not contribute to the $\\pi \\Delta\n\\rightarrow \\Lambda K$ reactions. Furthemore, the $\\pi \\Delta \\rightarrow Y K$\ncontributions to kaon production in heavy ion collisions are not only\nnon-neglegible but also very different from the $\\pi N \\rightarrow Y K$\nreactions. An argument valid for $\\pi N \\rightarrow Y K$ cannot be extended to\n$\\pi \\Delta \\rightarrow Y K$ reactions. Therefore, cross sections for $\\pi\n\\Delta \\rightarrow Y K$ including correctly the different isospins must be",
    "arxiv_id": "nucl-th/9407020",
    "authors": [
      "K. Tsushima",
      "S. W. Huang",
      "Amand Faessler"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1088/0954-3899/21/1/005",
    "journal_ref": "J.Phys. G21 (1995) 33-42",
    "title": "Resonance Model of $\\pi \\Delta \\rightarrow Y K$ for Kaon Production in   Heavy Ion Collisions",
    "url": "https://arxiv.org/abs/nucl-th/9407020"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4e0b4598-674c-4640-a40b-00208f98de9d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}