{
  "annotation_id": "f91f48da-13e3-4e34-a5e4-e6607d0ccc3a",
  "date_created": "2026-03-02T18:00:14.164000Z",
  "date_modified": "2026-03-02T18:00:14.164000Z",
  "file_hash": "8516a8c0ece22d65637f77429ff37438274fdfd8aae22bd9511d6361e698c5f3",
  "private": false,
  "record": {
    "abstract": "We study the effects of $N^{*}(1440)$ resonance on the production of kaons,\nantikaons and antiprotons in heavy-ion collisions at subthreshold energies.\nUsing free-space widths for the $\\Delta(1232)$ and the $N^{*}(1440)$ resonance\nand free-space thresholds for particle production, it is found that the\n$N^{*}$-baryon interactions contribute about 10\\%, 25\\% and 80\\% to the yield\nof kaon, antikaon and antiproton, respectively. Doubling the widths of\nresonances due to possible medium effects, both the total and the $N^{*}$\ninduced antiproton yield decrease by about a factor of 3. Using a reduced\nantiproton production threshold in a nuclear medium as a result of dropping\nin-medium nucleon and antiproton masses, the total and the $N^{*}$ induced\nantiproton yield increase by a factor of 35 and 27, respectively, and the\ncontribution of the $N^{*}$ induced collisions is reduced to about 50\\% of the\ntotal.",
    "arxiv_id": "nucl-th/9404028",
    "authors": [
      "Bao-An Li",
      "Che Ming Ko",
      "Guoqiang Li"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Effects of N$^{*}$(1440) resonance on subthreshold kaon, antikaon and   antiproton production",
    "url": "https://arxiv.org/abs/nucl-th/9404028"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "51a9d974-c576-4977-9521-bc53e5b554dd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}