{
  "annotation_id": "b8795b6d-fb25-4729-95e6-51c9b27bd409",
  "date_created": "2026-03-02T18:00:17.727000Z",
  "date_modified": "2026-03-02T18:00:17.727000Z",
  "file_hash": "a67440169fd34c367a20ae9ce3d14844bec3fec003077d11844f9abc838451d8",
  "private": false,
  "record": {
    "abstract": "Within the framework of an isospin-dependent Boltzmann-Uehling-Uhlenbeck\n(BUU) model using initial proton and neutron densities calculated from the\nnonlinear relativistic mean-field (RMF) theory, we compare the strength of\ntransverse collective flow in reactions $^{48}Ca+^{58}Fe$ and\n$^{48}Cr+^{58}Ni$, which have the same mass number but different neutron/proton\nratios. The neutron-rich system ($^{48}Ca+^{58}Fe$) is found to show\nsignificantly stronger negative deflection and consequently has a higher\nbalance energy, especially in peripheral collisions. NOTE ADDED IN PROOF: The\nnew phenomenon predicted in this work has just been confirmed by an experiment\ndone by G.D. Westfall et al. using the NSCL/MSU radioactive beam facility and a\nspartan soccer. A paper by R. Pak et al. is submitted to PRL to report the\nexperimental result.",
    "arxiv_id": "nucl-th/9605015",
    "authors": [
      "Bao-An Li",
      "Z. Z. Ren",
      "C. M. Ko",
      "S. J. Yennello"
    ],
    "categories": [
      "nucl-th",
      "nucl-ex"
    ],
    "doi": "10.1103/PhysRevLett.76.4492",
    "journal_ref": "Phys.Rev.Lett.76:4492,1996",
    "title": "Isospin dependence of collective flow in heavy-ion collisions at   intermediate energies",
    "url": "https://arxiv.org/abs/nucl-th/9605015"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2fa15946-fe08-48d1-85c2-061a2affa343",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}