{
  "annotation_id": "6ba00996-9eef-4ca4-ae80-56a02b5fc61f",
  "date_created": "2026-03-02T18:00:11.797000Z",
  "date_modified": "2026-03-02T18:00:11.797000Z",
  "file_hash": "3d0b489308220c049a6617a6e3bed0136c46df7062a485854fc457d0ca02aa3c",
  "private": false,
  "record": {
    "abstract": "We calculate the subthreshold production of antiprotons in the\nLorentz-covariant RBUU approach employing a weighted testparticle method to\ntreat the antiproton propagation and absorption nonperturbatively. We find that\nthe pbar differential cross sections are highly sensitive to the baryon and\nantiproton selfenergies in the dense baryonic environment. Adopting the baryon\nscalar and vector selfenergies from the empirical optical potential for\nproton-nucleus elastic scattering and from Dirac-Brueckner calculations at\nhigher density rho \u003e rho_0 we examine the differential pbar spectra as a\nfunction of the antiproton selfenergy. A detailed comparison with the available\nexperimental data for p-nucleus and nucleus-nucleus reactions shows that the\nantiproton feels a moderately attractive mean-field at normal nuclear matter\ndensity rho_0 which is in line with a dispersive potential extracted from the\nfree annihilation cross section.",
    "arxiv_id": "nucl-th/9401008",
    "authors": [
      "Stefan Teis",
      "Wolfgang Cassing",
      "Tomoyuki Maruyama",
      "Ulrich Mosel"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.50.388",
    "journal_ref": "Phys.Rev.C50:388-405,1994",
    "title": "Analysis of Subthreshold Antiproton Production in p-Nucleus and   Nucleus-Nucleus Collisions in the RBUU Approach",
    "url": "https://arxiv.org/abs/nucl-th/9401008"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ab646d0c-ae0e-4599-8ec1-b87bfeb9ec8c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}