{
  "annotation_id": "27934a73-5cc8-45eb-ac9d-c3e2b692d77a",
  "date_created": "2026-03-02T18:00:18.658000Z",
  "date_modified": "2026-03-02T18:00:18.658000Z",
  "file_hash": "b72d23b944312a79ec5654ffd9a2b942bcd1f2cbd814e479926e2e17d9b86939",
  "private": false,
  "record": {
    "abstract": "We examine the qualitative features of parton production through\nmaterialization in heavy-ion collisions within perturbative QCD, and estimate\nthe magnitude of the resulting parton density created during the early stage of\nthe collisions. The implications for ``anomalous\u0027\u0027 $J/\\psi$ suppression\nobserved in Pb+Pb collisions at the CERN SPS are discussed. We argue that the\nA-dependence of absorption of $J/\\psi$ by (partonic) comovers is steeper than\nassumed in most phenomenological models, because the absorption process is\ndominated by quasi-perturbative QCD interactions. Our argument is supported by\nresults recently obtained in the framework of the parton cascade model. We\npredict significant ``anomalous\u0027\u0027 suppression for Pb+Pb collisions at the\nCERN-SPS, but not for S+U collisions.",
    "arxiv_id": "nucl-th/9707048",
    "authors": [
      "Klaus Geiger",
      "Berndt Mueller"
    ],
    "categories": [
      "nucl-th",
      "hep-ph",
      "nucl-ex"
    ],
    "doi": "10.1007/BF03158345",
    "journal_ref": "Heavy Ion Phys. 7 (1998) 207-214",
    "title": "How dense does parton matter get in Pb + Pb Collisions at the CERN SPS?",
    "url": "https://arxiv.org/abs/nucl-th/9707048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "847c956f-d0fc-40cf-b3f8-27c79defb1c6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}