{
  "annotation_id": "ae74654d-7ad6-416e-ad51-d58da54351fb",
  "date_created": "2026-03-02T18:00:25.420000Z",
  "date_modified": "2026-03-02T18:00:25.420000Z",
  "file_hash": "8f74a373f3b24cb6dc84568310ed73540a32cdae52f1732d8d3508608763d4b1",
  "private": false,
  "record": {
    "abstract": "We study the production of $c \\bar{c}$ pairs and dimuons from hard collisions\nin nuclear reactions within the covariant transport approach HSD. Adopting 6 mb\nfor the $c \\bar{c}$-baryon cross section the data on $J/\\Psi$ suppression in p\n+ A reactions are reproduced in line with calculations based on the Glauber\nmodel. Furthermore, using $J/\\Psi$ absorption cross sections with mesons above\nthe $D\\bar{D}$ threshold in the order of 1.5 - 3 mb we find that all data on\n$J/\\Psi$ suppression from NA38/NA50 can be described without assuming the\nformation of a quark-gluon plasma. Alternatively, we also investigate an\n\u0027early\u0027-comover absorption scenario where the $c \\bar{c}$ pairs are dissociated\nin the color electric fields of neighboring strings. Again we find good\nagreement with the experimental data with an estimate for the string radius of\n$R_s \\approx 0.2-0.25 fm$.",
    "arxiv_id": "nucl-th/9810059",
    "authors": [
      "J. Geiss",
      "E. Bratkovskaya",
      "W. Cassing",
      "C. Greiner"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "J/Psi Absorption Scenarios in Nuclear Collisions",
    "url": "https://arxiv.org/abs/nucl-th/9810059"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0b4633b9-9a48-4d2f-8a98-0ff7bee724a3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}