{
  "annotation_id": "7701a9d1-3a4f-4835-bb2f-0a7f3f79ca89",
  "date_created": "2026-03-02T18:00:01.187000Z",
  "date_modified": "2026-03-02T18:00:01.187000Z",
  "file_hash": "e82e89cb66032ca915d937cbc6d97c4bfb9f6e929246edc8f4e7497109bcacdb",
  "private": false,
  "record": {
    "abstract": "Modifications of Delta(1232) and nucleon spectral functions at finite\ntemperature and baryon density are evaluated in terms of resonant scattering\noff thermal pions, as well as a renormalization of the vacuum Delta-width\nincluding vertex corrections. The interactions are based on effective\nLagrangians of pions and baryon resonances, with underlying parameters\n(coupling constants and form factors) determined by the elastic pi N scattering\nphase shift in the isobar channel, and by empirical decay branchings of excited\nresonances. Pion modifications are included via interactions in a pion gas, as\nwell as standard Delta- and nucleon-hole excitations in nuclear matter. In hot\nhadronic matter, under conditions resembling thermal freezeout at the\nRelativistic Heavy-Ion Collider (RHIC), the Delta exhibits a significant\nbroadening of ~65 MeV together with a slight upward peak shift of 5-10 MeV, in\nqualitative agreement with preliminary data from the STAR collaboration.",
    "arxiv_id": "nucl-th/0407050",
    "authors": [
      "Hendrik van Hees",
      "Ralf Rapp"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/j.physletb.2004.10.062",
    "journal_ref": "Phys.Lett. B606 (2005) 59-66",
    "title": "Delta(1232) and Nucleon Spectral Functions in Hot Hadronic Matter",
    "url": "https://arxiv.org/abs/nucl-th/0407050"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e4c18c18-d54f-4ed0-864b-4a1d358a5d05",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}