{
  "annotation_id": "1412f808-cf37-4342-a068-5ebe4c7a8f3e",
  "date_created": "2026-03-02T18:00:07.847000Z",
  "date_modified": "2026-03-02T18:00:07.847000Z",
  "file_hash": "6922f9e70bf4af94fce7b698df0cd75d22c49a0863b617d59a79fef0c62385fb",
  "private": false,
  "record": {
    "abstract": "The rapidity dependence of the single- and double- neutron to proton ratios\nof nucleon emission from isospin-asymmetric but mass-symmetric reactions Zr+Ru\nand Ru+Zr at energy range $100 \\sim 800$ A MeV and impact parameter range\n$0\\sim 8$ fm is investigated. The reaction system with isospin-asymmetry and\nmass-symmetry has the advantage of simultaneously showing up the dependence on\nthe symmetry energy and the degree of the isospin equilibrium. We find that the\nbeam energy- and the impact parameter dependence of the slope parameter of the\ndouble neutron to proton ratio ($F_D$) as function of rapidity are quite\nsensitive to the density dependence of symmetry energy, especially at energies\n$E_b\\sim 400$ A MeV and reduced impact parameters around 0.5. Here the symmetry\nenergy effect on the $F_D$ is enhanced, as compared to the single neutron to\nproton ratio. The degree of the equilibrium with respect to isospin (isospin\nmixing) in terms of the $F_D$ is addressed and its dependence on the symmetry\nenergy is also discussed.",
    "arxiv_id": "nucl-th/0603050",
    "authors": [
      "Qingfeng Li",
      "Zhuxia Li",
      "Horst Stoecker"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.73.051601",
    "journal_ref": "Phys.Rev.C73:051601,2006",
    "title": "Probing the symmetry energy and the degree of isospin equilibrium",
    "url": "https://arxiv.org/abs/nucl-th/0603050"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "61e2aff8-b11d-4c05-973a-cf9dfcaeeea9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}