{
  "annotation_id": "c359853f-d091-4e8e-9aa2-b7eb389f598c",
  "date_created": "2026-03-02T18:00:01.260000Z",
  "date_modified": "2026-03-02T18:00:01.260000Z",
  "file_hash": "4311b017909ae1becc18c49f29eb78dee3787f8c32d1f880f8498c623aad09ea",
  "private": false,
  "record": {
    "abstract": "We investigate the density dependence of the symmetry energy in a\nrelativistic description by decomposing the iso-vector mean field into\ncontributions with different Lorentz properties. We find important effects of\nthe iso-vector, scalar $\\delta$ channel on the density behavior of the symmetry\nenergy. Finite nuclei studies show only moderate effects originating from the\nvirtual $\\delta$ meson. In heavy ion collisions from Fermi to relativistic\nenergies up to $1-2 AGeV$ one finds important contributions on the dynamics\narising from the different treatment of the microscopic Lorentz structure of\nthe symmetry energy. We discuss a variety of possible signals which could set\nconstraints on the still unknown density dependence of the symmetry energy,\nwhen experimental data will be available. Examples of such observables are\nisospin collective flow, threshold production of pions and kaons, isospin\nequilibration and stopping in asymmetric systems like $Au+Au$, $Sn+Sn$ and\n$Ru(Zr)+Zr(Ru)$.",
    "arxiv_id": "nucl-th/0402041",
    "authors": [
      "T. Gaitanos",
      "M. Di Toro",
      "G. Ferini",
      "M. Colonna",
      "H. H. Wolter"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Isospin effects in intermediate energy heavy ion collisions",
    "url": "https://arxiv.org/abs/nucl-th/0402041"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7fd772c7-b6d6-4f25-ac80-53eaabbcca81",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}