{
  "annotation_id": "1e4b75a5-4199-446d-ad71-c84d7bc2942a",
  "date_created": "2026-03-02T18:00:01.084000Z",
  "date_modified": "2026-03-02T18:00:01.084000Z",
  "file_hash": "b191b9939b39be8f2c63b1de151e529a00169d7038e26505ab95cd1e4c12ddb9",
  "private": false,
  "record": {
    "abstract": "Using an isospin- and momentum-dependent transport model we study\nnear-threshold pion production in heavy-ion collisions induced by radioactive\nbeams at the planned Rare Isotope Accelerator (RIA). We revisit the question of\nprobing the high density behavior of nuclear symmetry energy $E_{sym}(\\rho)$\nusing the $\\pi^-/\\pi^+$ ratio. It is found that both the total and differential\n$\\pi^-/\\pi^+$ ratios remain sensitive to the $E_{sym}(\\rho)$ when the\nmomentum-dependence of both the isoscalar and isovector potentials are\nconsistently taken into account. Moreover, the multiplicity and spectrum of\n$\\pi^-$ mesons are found more sensitive to the $E_{sym}(\\rho)$ than those of\n$\\pi^+$ mesons. Finally, effects of the Coulomb potential on the pion spectra\nand $\\pi^-/\\pi^+$ ratio are also discussed.",
    "arxiv_id": "nucl-th/0411045",
    "authors": [
      "Bao-An Li",
      "Gao-Chan Yong",
      "Wei Zuo"
    ],
    "categories": [
      "nucl-th",
      "nucl-ex"
    ],
    "doi": "10.1103/PhysRevC.71.014608",
    "journal_ref": "Phys.Rev.C71:014608,2005",
    "title": "Near-threshold pion production with radioactive beams at the Rare   Isotope Accelerator",
    "url": "https://arxiv.org/abs/nucl-th/0411045"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1942b2fc-aa14-4ed4-8857-3a3517bfe5bf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}