{
  "annotation_id": "e3de4a18-cafa-4755-bb4b-3ccf043d7806",
  "date_created": "2026-03-02T18:00:01.019000Z",
  "date_modified": "2026-03-02T18:00:01.019000Z",
  "file_hash": "ae764824edca514224e1d19d5cd01f7740459d35b4921bee6a9b0a437b8b4bd3",
  "private": false,
  "record": {
    "abstract": "We extract values for the free symmetry energy as a function of the fragment\nsize (the proton number Z) from antisymmetrized molecular dynamics (AMD)\ncalculations of calcium collisions. Simple statistical physics describe well\nthe distribution of hot nuclei at breakup, provided the surface symmetry term\nin the free energy is much smaller at high excitation than in ground state\nnuclei. This result may reflect the condition of low density and finite\ntemperature when these systems disassemble.",
    "arxiv_id": "nucl-th/0409027",
    "authors": [
      "Akira Ono",
      "P. Danielewicz",
      "W. A. Friedman",
      "W. G. Lynch",
      "M. B. Tsang"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.70.041604",
    "journal_ref": "Phys.Rev. C70 (2004) 041604",
    "title": "Symmetry energy for fragmentation in dynamical nuclear collisions",
    "url": "https://arxiv.org/abs/nucl-th/0409027"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d715983b-6642-4865-82d1-7beca4ce1ed9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}