{
  "annotation_id": "a93194f8-d5c5-45c4-92d7-2ca135819543",
  "date_created": "2026-03-02T18:00:18.412000Z",
  "date_modified": "2026-03-02T18:00:18.412000Z",
  "file_hash": "14e66ce1692d391fa1f4511f5eaced43d975f14554a19385fd20baa39abd3089",
  "private": false,
  "record": {
    "abstract": "We present a calculation of asymmetric nuclear matter properties in a\nrelativistic Brueckner Hartree Fock framework. Following other calculations the\ncomponents of the self-energies are extracted by projecting on Lorentz\ninvariant amplitudes. It is shown that for asymmetric nuclear matter one needs\na sixth invariant. We present a set of invariants which in the limit of\nsymmetric nuclear matter reduces to the conventional set. We argue that the\nexistence of such a properly behaving set is also crucial for the application\nof the projection method in symmetric nuclear matter. Results for the equation\nof state and other observables are presented. Special attention is payed to an\nanalysis in terms of mean-field effective coupling constants. Apart from the\nusual ones we also find significant strength in the isovector scalar channel,\nwhich can be interpreted as an effective $\\delta$-meson.",
    "arxiv_id": "nucl-th/9707017",
    "authors": [
      "F. de Jong",
      "H. Lenske"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.57.3099",
    "journal_ref": "Phys.Rev.C57:3099-3107,1998",
    "title": "Asymmetric Nuclear Matter in the Relativistic Brueckner Hartree Fock   approach",
    "url": "https://arxiv.org/abs/nucl-th/9707017"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e46a785a-7039-47bb-a047-a21f493fd6ed",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}