{
  "annotation_id": "79c4808b-be60-4082-a4ac-c1e21389e5ef",
  "date_created": "2026-03-02T18:00:12.042000Z",
  "date_modified": "2026-03-02T18:00:12.042000Z",
  "file_hash": "88728908099cb478ecd849075d6b9dfabc9041caa08c0a0408f83c2cb7ae5db1",
  "private": false,
  "record": {
    "abstract": "We examine a hot pion gas by including medium modifications of the two-body\nscattering amplitude as well as mean-field effects selfconsistently. In\ncontrast to earlier calculations, the in-medium T-matrix is rather close to the\nfree one while the mean-field potential agrees well with lowest-order\nestimates. We also discuss the validity of the quasiparticle approximation. It\nis found that it is reliable for temperatures up to $\\sim 150$ MeV. Above this\ntemperature off-shell effects in the pion selfenergy become important,\nespecially if the pions are strongly out of chemical equilibrium.",
    "arxiv_id": "nucl-th/9306016",
    "authors": [
      "R. Rapp",
      "J. Wambach"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/0370-2693(93)91604-L",
    "journal_ref": "Phys.Lett. B315 (1993) 220-225",
    "title": "Selfconsistent Description of a Thermal Piongas",
    "url": "https://arxiv.org/abs/nucl-th/9306016"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8e73ce00-828e-4968-a244-d695d03585cf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}