{
  "annotation_id": "adf2fe58-42cf-41a3-918e-8d6c11aa97cf",
  "date_created": "2026-03-02T18:00:07.688000Z",
  "date_modified": "2026-03-02T18:00:07.688000Z",
  "file_hash": "fa711a9b3593687ba29ee260a6604c5a60c54cfaca9e79ddc6aaed2d71e1a4d5",
  "private": false,
  "record": {
    "abstract": "We study the bound nucleon sigma term and the quark condensate in nuclear\nmatter. In the quark-meson coupling (QMC) model the nuclear correction to the\nsigma term is small and negative, i.e., it decelerates the decrease of the\nquark condensate in nuclear matter. However, the quark condensate in nuclear\nmatter is controlled primarily by the scalar-isoscalar $\\sigma$ field. Compared\nto the leading term, it moderates the decrease more than that of the nuclear\nsigma term alone at densities around and larger than the normal nuclear matter\ndensity.",
    "arxiv_id": "nucl-th/0608062",
    "authors": [
      "K. Tsushima",
      "K. Saito",
      "A. W. Thomas",
      "A. Valcarce"
    ],
    "categories": [
      "nucl-th",
      "hep-ex",
      "hep-ph",
      "nucl-ex"
    ],
    "doi": "10.1140/epja/i2006-10179-4",
    "journal_ref": "Eur.Phys.J.A31:626-629,2007",
    "title": "Nucleon sigma term and quark condensate in nuclear matter",
    "url": "https://arxiv.org/abs/nucl-th/0608062"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3f5383e3-901f-4e8d-b0f0-8edcc709316d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}