{
  "annotation_id": "3fd32419-1873-4189-8291-5567f1f0b6df",
  "date_created": "2026-03-02T18:00:11.910000Z",
  "date_modified": "2026-03-02T18:00:11.910000Z",
  "file_hash": "c63b09d5998f6a87ef85344ff40e7969d50de4cf756df2737d5bdcfd93230738",
  "private": false,
  "record": {
    "abstract": "Rapidity/seudorapidity densities for charged particles and their centrality,\nrapidity and energy dependence in Au+Au collisions at RHIC are studied in a\nquark combination model. Using a Gaussian-type rapidity distribution for\nconstituent quarks as a result of Landau hydrodynamic evolution, the data at\n$\\sqrt{s_{NN}}=130, 200$ GeV at various centralities in full pseudorapidity\nrange are well described, and the charged particle multiplicity are reproduced\nas functions of the number of participants. The energy dependence of the shape\nof the $dN_{ch}/d\\eta$ distribution is also described at various collision\nenergies $\\sqrt{s_{NN}}=200, 130, 62.4$ GeV in central collisions with same\nvalue of parameters except 19.6 GeV. The calculated rapidity distributions and\nyields for the charged pions and kaons in central Au+Au collisions at\n$\\sqrt{s_{NN}}=200$ GeV are compared with experimental data of the BRAHMS\nCollaboration.",
    "arxiv_id": "nucl-th/0611026",
    "authors": [
      "Feng-lan Shao",
      "Tao Yao",
      "Qu-bing Xie"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.75.034904",
    "journal_ref": "Phys.Rev.C75:034904,2007",
    "title": "Charged-particle rapidity density in Au+Au collisions in a quark   combination model",
    "url": "https://arxiv.org/abs/nucl-th/0611026"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "16f841f1-afc0-4e1b-ada5-87b29b62bd06",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}