{
  "annotation_id": "bdaaffb4-fedf-4bf7-9d15-1e2fc290864d",
  "date_created": "2026-03-02T18:00:21.920000Z",
  "date_modified": "2026-03-02T18:00:21.920000Z",
  "file_hash": "c931c24d0ad8b30d2455670f2c28a02a7cde5c45d0d9fb34d590ff27bc0ad01b",
  "private": false,
  "record": {
    "abstract": "We estimate the energy density pile-up at mid-rapidity in central Pb+Pb\ncollisions from 2 - 200 GeV/nucleon. The energy density is decomposed into\nhadronic and partonic contributions. A detailed analysis of the collision\ndynamics in the framework of a microscopic transport model shows the importance\nof partonic degrees of freedom and rescattering of leading (di)quarks in the\nearly phase of the reaction for lab-energies \u003e 30 GeV/nucleon. In Pb+Pb\ncollisions at 160 GeV/nucleon the energy density reaches up to 4 GeV/fm^3, 95%\nof which are contained in partonic degrees of freedom.",
    "arxiv_id": "nucl-th/9808021",
    "authors": [
      "H. Weber",
      "C. Ernst",
      "M. Bleicher",
      "L. Bravina",
      "H. Stoecker",
      "W. Greiner",
      "C. Spieles",
      "S. A. Bass"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1016/S0370-2693(98)01252-0",
    "journal_ref": "Phys.Lett. B442 (1998) 443-448",
    "title": "Excitation Function of Energy Density and Partonic Degrees of Freedom in   Relativistic Heavy Ion Collisions",
    "url": "https://arxiv.org/abs/nucl-th/9808021"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b147e5f5-2aac-419d-b9c0-9d700550ca45",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}