{
  "annotation_id": "d2aeb50f-bb86-4633-aaf2-73e9491d3512",
  "date_created": "2026-03-02T18:00:01.363000Z",
  "date_modified": "2026-03-02T18:00:01.363000Z",
  "file_hash": "6c4c58f6b5a012d295207728f0d387ae9f31916fbe8f51e52f3e4581bff0e441",
  "private": false,
  "record": {
    "abstract": "Using the generalized mean field theory, we have studied the relation among\nthe effective meson masses, the effective meson-nucleon couplings and the\nequation of state (EOS) in asymmetric nuclear matter. If the effective\nomega-meson mass becomes smaller at high density, the EOS becomes stiffer.\nHowever, if we require that the omega-meson mean field is proportional to the\nbaryon density, the effective omega-nucleon coupling automatically becomes\nsmaller at the same time as the effective omega-meson mass becomes smaller.\nConsequently, the EOS becomes softer. A similar relation is found for the\neffective rho-meson mass and the effective rho-nucleon coupling. We have also\nstudied the relation among the effective meson masses, the effective\nmeson-nucleon couplings and a radius R of a neutron star. The R depends\nsomewhat on the value of the effective omega-meson mass and the effective\nomega-nucleon coupling.",
    "arxiv_id": "nucl-th/0407004",
    "authors": [
      "Kunito Tuchitani",
      "Yasushi Horinouchi",
      "Taihei Iwamitsu",
      "Ken-ichi Makino",
      "Nobuo Noda",
      "Hiroaki Kouno",
      "Akira Hasegawa",
      "Masahiro Nakano"
    ],
    "categories": [
      "nucl-th",
      "astro-ph",
      "hep-ph"
    ],
    "doi": "10.1142/S0218301305003673",
    "journal_ref": "Int.J.Mod.Phys. E14 (2005) 955-985",
    "title": "Effective meson masses, effective meson-nucleon couplings and neutron   star radii",
    "url": "https://arxiv.org/abs/nucl-th/0407004"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "00ab23d6-1ee5-4cc2-909d-a172828c14f2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}