{
  "annotation_id": "19b4fb38-c700-45da-b255-43543c4c087e",
  "date_created": "2026-03-02T18:00:22.195000Z",
  "date_modified": "2026-03-02T18:00:22.195000Z",
  "file_hash": "0f43b8de4a2297390d338b7441669459828c45d1452a19dc02e4b759a92f5a2a",
  "private": false,
  "record": {
    "abstract": "We recapitulate a thermodynamically consistent excluded volume hadron gas\nmodel and examine its differences with other ``thermal models\u0027\u0027 used in the\nliterature. Preliminary experimental data for particle number ratios in the\ncollisions of Au+Au at the BNL AGS (11$A$ GeV/$c$) and Pb+Pb at the CERN SPS\n(160$A$ GeV/$c$) are analyzed. For equal values of the hadron hard-core\nparameters the excluded volume model gives essentially the ideal gas\npredictions for the particle number ratios, which is similar to other thermal\nmodels. We observe, however, the systematic excess of experimental pion\nabundances compared to the ideal gas results. This effect can be explained in\nour model by a smaller pion hard-core volume compared to those of other\nhadrons. The absolute values for particle number and energy densities at the\nchemical freezeout are predicted with a simultaneous fit to all these AGS and\nSPS particle number ratios.",
    "arxiv_id": "nucl-th/9711062",
    "authors": [
      "Granddon D. Yen",
      "Mark I. Gorenstein",
      "Walter Greiner",
      "Shin Nan Yang"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.56.2210",
    "journal_ref": "Phys.Rev.C56:2210-2218,1997",
    "title": "Excluded volume hadron gas model for particle number ratios in A+A   collisions",
    "url": "https://arxiv.org/abs/nucl-th/9711062"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b4827762-0333-41bd-a7a3-7f91adc33109",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}