{
  "annotation_id": "634743fe-67fd-4000-a339-b8ed5b7c626d",
  "date_created": "2026-03-02T18:00:24.522000Z",
  "date_modified": "2026-03-02T18:00:24.522000Z",
  "file_hash": "3c90e8a78ad4b4963b076ac9698218204849cfb6e638f3f35c8b7b7d5f24fe00",
  "private": false,
  "record": {
    "abstract": "The spectra of the scalar ($\\sigma$) and vector ($\\omega$) mesons in nuclear\nmatter are studied in detail using the quark-meson coupling (QMC) model. It is\nshown that above normal nuclear matter density the effects of $\\sigma$-$\\omega$\nmixing and the decay of the $\\sigma$ into $2\\pi$ change the spectra of $\\sigma$\nand $\\omega$ mesons considerably. As in Quantum Hadrodynamics we find a\nremarkable spectral change in the $\\sigma$ meson and the longitudinal mode of\nthe $\\omega$ meson, namely a two-peak structure.",
    "arxiv_id": "nucl-th/9811031",
    "authors": [
      "K. Saito",
      "K. Tsushima",
      "A. W. Thomas"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1016/S0370-2693(99)00775-3",
    "title": "Spectral change of sigma and omega mesons in a dense nuclear medium",
    "url": "https://arxiv.org/abs/nucl-th/9811031"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1c332ef5-0482-4277-9c59-8333624ffc2a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}