{
  "annotation_id": "0d2ee63c-6c5b-4387-aa31-d763121e0107",
  "date_created": "2026-03-02T18:00:24.941000Z",
  "date_modified": "2026-03-02T18:00:24.941000Z",
  "file_hash": "9aece4942dc50a32dd88b783096d5470dc262395038149f0856bfa0f09596bea",
  "private": false,
  "record": {
    "abstract": "The medium modifications of antikaons in dense matter are studied in a\ncoupled channel calculation for scenarios more closely related to the\nenvironment encountered in heavy-ion collisions. We find that the optical\npotential of the antikaons turns repulsive or is drastically reduced for finite\nmomenta or finite temperature. Hence, the antikaon mass does not decrease\nsubstantially in heavy-ion collisions to provide an explanation for the\nobserved antikaon production rates at threshold. We demonstrate that the\nin-medium production cross section of antikaons via pions and Sigma hyperons is\nremarkably enhanced up to an order of magnitude. The effect of in medium\ncorrection on the resulting kaon spectra is studied within a transport model.\nWe find that both in medium correction lead to about the same enhancement of\nthe spectrum. However, once the temperature dependence is taken into account no\nenhancement is found.",
    "arxiv_id": "nucl-th/9907095",
    "authors": [
      "J. Schaffner-Bielich",
      "V. Koch",
      "M. Effenberger"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/S0375-9474(99)00690-9",
    "journal_ref": "Nucl.Phys.A669:153-172,2000",
    "title": "Medium Modified Cross Sections, Temperature and Finite Momentum Effects   for Antikaon Production in Heavy-Ion Collisions",
    "url": "https://arxiv.org/abs/nucl-th/9907095"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6be74b9a-42fe-4019-9693-8a686779fd14",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}