{
  "annotation_id": "e2dcfa37-83d6-405f-9067-a133db175a91",
  "date_created": "2026-03-02T18:00:18.795000Z",
  "date_modified": "2026-03-02T18:00:18.795000Z",
  "file_hash": "7793150097851e843a856f5ad35cf2415c9140d1409319375c56b8320d4811e8",
  "private": false,
  "record": {
    "abstract": "A generalized Lagrangian for the description of hadronic matter based on the\nlinear $SU(3)_L \\times SU(3)_R$ $\\sigma$-model is proposed. Besides the baryon\noctet, the spin-0 and spin-1 nonets, a gluon condensate associated with broken\nscale invariance is incorporated. The observed values for the vacuum masses of\nthe baryons and mesons are reproduced. In mean-field approximation, vector and\nscalar interactions yield a saturating nuclear equation of state. We discuss\nthe difficulties and possibilities to construct a chiral invariant baryon-meson\ninteraction that leads to a realistic equation of state. It is found that a\ncoupling of the strange condensate to nucleons is needed to describe the\nhyperon potentials correctly. The effective baryon masses and the appearance of\nan abnormal phase of nearly massless nucleons at high densities are examined. A\nnonlinear realization of chiral symmetry is considered, to retain a Yukawa-type\nbaryon-meson interaction and to establish a connection to the Walecka-model.",
    "arxiv_id": "nucl-th/9706024",
    "authors": [
      "P. Papazoglou",
      "S. Schramm",
      "J. Schaffner-Bielich",
      "H. St\u00f6cker",
      "W. Greiner"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.57.2576",
    "journal_ref": "Phys.Rev. C57 (1998) 2576-2588",
    "title": "Chiral Lagrangian for strange hadronic matter",
    "url": "https://arxiv.org/abs/nucl-th/9706024"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1c1be675-462f-489a-ade6-d4f4b977d131",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}