{
  "annotation_id": "2eb8d933-7d10-4883-a007-df479a46f177",
  "date_created": "2026-03-02T18:00:15.472000Z",
  "date_modified": "2026-03-02T18:00:15.472000Z",
  "file_hash": "9778190a4c3256a1a14f620f943ded1352d928e19460a42a7056002526041224",
  "private": false,
  "record": {
    "abstract": "The quark-meson coupling model for nuclear matter, which describes nuclear\nmatter as non-overlapping MIT bags bound by the self-consistent exchange of\nscalar and vector mesons, is modified by introducing medium modification of the\nbag constant. We model the density dependence of the bag constant in two\ndifferent ways: one invokes a direct coupling of the bag constant to the scalar\nmeson field, and the other relates the bag constant to the in-medium nucleon\nmass. Both models feature a decreasing bag constant with increasing density. We\nfind that when the bag constant is significantly reduced in nuclear medium with\nrespect to its free-space value, large canceling isoscalar Lorentz scalar and\nvector potentials for the nucleon in nuclear matter emerge naturally. Such\npotentials are comparable to those suggested by relativistic nuclear\nphenomenology and finite-density QCD sum rules. This suggests that the\nreduction of bag constant in nuclear medium may play an important role in low-\nand medium-energy nuclear physics.",
    "arxiv_id": "nucl-th/9604018",
    "authors": [
      "Xuemin Jin",
      "B. K. Jennings"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1103/PhysRevC.54.1427",
    "journal_ref": "Phys.Rev.C54:1427-1436,1996",
    "title": "Modified Quark-Meson Coupling Model for Nuclear Matter",
    "url": "https://arxiv.org/abs/nucl-th/9604018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3895b6bf-343f-4f3e-9a9c-c6179396ec8e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}