{
  "annotation_id": "54e0908e-d519-43fa-9620-b0696fdce124",
  "date_created": "2026-03-02T18:00:01.535000Z",
  "date_modified": "2026-03-02T18:00:01.535000Z",
  "file_hash": "bf58cfb9d51014a65512b5b2f37ef218d7cc91bfa8e9a0fecd25ef96fff81a2a",
  "private": false,
  "record": {
    "abstract": "We study the influence of the virtual pion cloud in nuclear matter at finite\ndensities and temperatures on the structure of the rho- and omega-mesons. The\nin-matter spectral function of the pion is obtained within a selfconsistent\nscheme of coupled Dyson equations where the coupling to the nucleon and the\nDelta(1232)-isobar resonance is taken into account. The selfenergies are\ndetermined using a two-particle irreducible (2PI) truncation scheme\n(Phi-derivable approximation) supplemented by Migdal\u0027s short range correlations\nfor the particle-hole excitations. The so obtained spectral function of the\npion is then used to calculate the in-medium changes of the vector-meson\nspectral functions. With increasing density and temperature a strong interplay\nof both vector-meson modes is observed. The four-transversality of the\npolarisation tensors of the vector-mesons is achieved by a projector technique.\nThe resulting spectral functions of both vector-mesons and, through vector\ndominance, the implications of our results on the dilepton spectra are studied\nin their dependence on density and temperature.",
    "arxiv_id": "nucl-th/0402090",
    "authors": [
      "F. Riek",
      "J. Knoll"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/j.nuclphysa.2004.05.010",
    "journal_ref": "Nucl.Phys. A740 (2004) 287-308",
    "title": "Self-consistent description of vector-mesons in matter",
    "url": "https://arxiv.org/abs/nucl-th/0402090"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "62fb4f94-94a0-44bb-9766-0ef7c75567ca",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}