{
  "annotation_id": "76ba2e22-c992-4202-90cd-799bed1b7e81",
  "date_created": "2026-03-02T18:00:28.040000Z",
  "date_modified": "2026-03-02T18:00:28.040000Z",
  "file_hash": "7c9252424a710d7b90f92b46806f4997c8b8033a527be33f13a3b0bd47f26bfc",
  "private": false,
  "record": {
    "abstract": "Based on quantum hadrodynamics with a finite cutoff, the effective masses of\nvector mesons(\\omega, \\rho) in nuclear medium are calculated. We use a\nlow-energy effective Lagrangian which is obtained by integrating high-energy\nquantum fluctuations. Although we use an artificial cutoff, the\ncutoff-dependence can be removed order by order. It is shown that there is a\nstrong correlation between the effective \\omega -meson mass and the effective\nnucleon mass at the normal density. It is also found that the effective\n\\rho-meson mass m_\\rho^* decreases as density increases. The rate of the\ndecrease becomes smaller at high density. As a result, at the normal density,\nthe m^*_\\rho/m_\\rho is 0.85 \\sim 0.95.",
    "arxiv_id": "nucl-th/9909054",
    "authors": [
      "K. Sakamoto",
      "M. Nakai",
      "H. Kouno",
      "A. Hasegawa",
      "M. Nakano"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1142/S0218301300000106",
    "journal_ref": "Int.J.Mod.Phys. E9 (2000) 169-183",
    "title": "Effective Vector Meson Masses in a Cutoff Field Theory",
    "url": "https://arxiv.org/abs/nucl-th/9909054"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ede46fef-d8ea-4085-932d-c097100da6cd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}