{
  "annotation_id": "06f8cb92-f6bd-4523-bb5a-93492ab869ee",
  "date_created": "2026-03-02T18:00:04.630000Z",
  "date_modified": "2026-03-02T18:00:04.630000Z",
  "file_hash": "4272b5750dd9c910a5960cbdbb46e196b04433feabc83c3a904651134c798f5f",
  "private": false,
  "record": {
    "abstract": "The Walecka model contains essentially two parameters that are associated\nwith the Lorentz scalar (S) and vector (V) interactions. These parameters are\nrelated to a two-body interaction consisting of S and V, imposing the condition\nthat the two-body binding energy is fixed. We have obtained a set of different\nvalues for the nuclear matter binding energies at equilibrium densities. We\ninvestigated the existence of a linear correlation between $B_N$ and $\\rho_0$,\nclaimed to be universal for nonrelativistic systems and usually known as the\nCoester line, and found an approximate linear correlation only if $V?S$ remains\nconstant. It is shown that the relativistic content of the model, which is\nrelated to the strength of $V?S$, is responsible for the shift of the Coester\nline to the empirical region of nuclear matter saturation.",
    "arxiv_id": "nucl-th/0503068",
    "authors": [
      "A. Delfino",
      "M. Malheiro",
      "V. S. Timoteo",
      "J. S. Sa Martins"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1590/S0103-97332005000100017",
    "journal_ref": "Braz.J.Phys. 35 (2005) 190-196",
    "title": "The Coester Line in Relativistic Mean Field Nuclear Matter",
    "url": "https://arxiv.org/abs/nucl-th/0503068"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b7c2c956-c65b-4938-a163-025da87dd653",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}