{
  "annotation_id": "a8f320e5-7421-4fee-98cc-070250344280",
  "date_created": "2026-03-02T18:00:01.018000Z",
  "date_modified": "2026-03-02T18:00:01.018000Z",
  "file_hash": "87e5dda0b6a180c09446d1fe9e297527c4ffe2cb605fceef5be6f9cb0ac8cd1d",
  "private": false,
  "record": {
    "abstract": "We investigate properties of the Delta(1232) and nucleon spectral functions\nat finite temperature and baryon density within a hadronic model. The medium\nmodifications of the Delta consist of a renormalization of its pion-nucleon\ncloud and resonant pi-Delta scattering. Underlying coupling constants and form\nfactors are determined by the elastic \\pi-N scattering phase shift in the\nisobar channel, as well as empirical partial decay widths of excited baryon\nresonances. For cold nuclear matter the model provides reasonable agreement\nwith photoabsorption data on nuclei in the Delta-resonance region. In hot\nhadronic matter typical for late stages of central Au-Au collisions at RHIC we\nfind the Delta-spectral function to be broadened by $\\sim$65 MeV together with\na slight upward mass shift of 5-10 MeV, in qualitative agreement with\npreliminary data from the STAR collaboration.",
    "arxiv_id": "nucl-th/0409026",
    "authors": [
      "H. van Hees",
      "R. Rapp"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1088/0954-3899/31/4/025",
    "journal_ref": "J.Phys. G31 (2005) S203-S210",
    "title": "The Delta(1232) at RHIC",
    "url": "https://arxiv.org/abs/nucl-th/0409026"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2b27c8a4-139d-4bfb-aa1c-d7b6a2161da3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}