{
  "annotation_id": "4237fba4-59b8-4c89-ae7f-d778f2de28a1",
  "date_created": "2026-03-02T18:00:18.912000Z",
  "date_modified": "2026-03-02T18:00:18.912000Z",
  "file_hash": "b210ced995c1eba342979ca1e8cc32a271f4af0eaf13d2b798cae0adf27809b6",
  "private": false,
  "record": {
    "abstract": "The Yano-Koonin-Podgoretskii (YKP) parametrisation of Hanbury Brown-Twiss\n(HBT) two-particle correlation functions opens new strategies for extracting\nthe emission duration and testing the longitudinal expansion in heavy-ion\ncollisions. Based on the recently derived model-independent expressions, we\npresent a detailed parameter study of the YKP parameters for a finite,\nhydrodynamically expanding source model of heavy-ion collisions. For the class\nof models studied here, we show that the three YKP radius parameters have an\ninterpretation as longitudinal extension, transverse extension and emission\nduration of the source in the YKP frame. This frame is specified by the fourth\nfit parameter, the Yano-Koonin velocity which describes to a good approximation\nthe velocity of the fluid element with highest emissivity and allows to test\nfor the longitudinal expansion of the source. Deviations from this\ninterpretation of the YKP parameters are discussed quantitatively.",
    "arxiv_id": "nucl-th/9607044",
    "authors": [
      "Y. -F. Wu",
      "U. Heinz",
      "B. Tomasik",
      "U. A. Wiedemann"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1007/s100520050109",
    "journal_ref": "Eur.Phys.J.C1:599-617,1998",
    "title": "Yano-Koonin-Podgoretskii Parametrisation of the Hanbury Brown-Twiss   Correlator",
    "url": "https://arxiv.org/abs/nucl-th/9607044"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "377b76fb-5d65-4d35-adcb-6b648a1b7160",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}