{
  "annotation_id": "2047923f-5f8d-4cf1-9052-d4f510805644",
  "date_created": "2026-03-02T18:00:18.643000Z",
  "date_modified": "2026-03-02T18:00:18.643000Z",
  "file_hash": "af574860bd9f7a9c608c2baf0b4cc35edcad8d534aa3d039b712fa7962f3fd35",
  "private": false,
  "record": {
    "abstract": "We study the thermodynamic properties of infinite nuclear matter with the\nUltrarelativistic Quantum Molecular Dynamics (URQMD), a semiclassical transport\nmodel, running in a box with periodic boundary conditions. It appears that the\nenergy density rises faster than $T^4$ at high temperatures of $T\\approx\n200-300$~MeV. This indicates an increase in the number of degrees of freedom.\nMoreover, We have calculated direct photon production in Pb+Pb collisions at\n160~GeV/u within this model. The direct photon slope from the microscopic\ncalculation equals that from a hydrodynamical calculation without a phase\ntransition in the equation of state of the photon source.",
    "arxiv_id": "nucl-th/9606030",
    "authors": [
      "C. Spieles",
      "A. Dumitru",
      "S. A. Bass",
      "M. Bleicher",
      "J. Brachmann",
      "M. Brandstetter",
      "C. Ernst",
      "L. Gerland",
      "J. Konopka",
      "S. Soff",
      "H. Weber",
      "L. A. Winckelmann",
      "J. Maruhn",
      "H. Stoecker",
      "W. Greiner"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Extracting the equation of state from a microscopic non-equilibrium   model",
    "url": "https://arxiv.org/abs/nucl-th/9606030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "786a25de-5c27-4005-90cf-e9df7af30661",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}