{
  "annotation_id": "bfe3c948-7ab7-457c-abe8-2065bbbc7234",
  "date_created": "2026-03-02T18:00:11.926000Z",
  "date_modified": "2026-03-02T18:00:11.926000Z",
  "file_hash": "72dad8c55f1d497cb9467773df537a1e9f0485c926cb0b31ecd881f1165bcd38",
  "private": false,
  "record": {
    "abstract": "We calculate the momentum dependence of the $\\rho-\\omega$ mixing amplitude in\na purely hadronic model. The basic assumption of the model is that the mixing\namplitude is generated by $N{\\bar{N}}$ loops and thus driven entirely by the\nneutron-proton mass difference. The value of the amplitude at the\n$\\omega$-meson point is expressed in terms of only the $NN\\omega$ and the\n$NN\\rho$ coupling constants. Using values for these couplings constrained by\nempirical two-nucleon data we obtain a value for the mixing amplitude in\nagreement with experiment. Extending these results to the spacelike region, we\nfind a $\\rho-\\omega$ contribution to the NN interaction that is strongly\nsuppressed and opposite in sign relative to the conventional contribution\nobtained from using the constant on-shell value for the mixing amplitude.",
    "arxiv_id": "nucl-th/9301002",
    "authors": [
      "J. Piekarewicz",
      "A. G. Williams"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.47.R2462",
    "journal_ref": "Phys.Rev.C47:2462-2466,1993",
    "title": "The Momentum Dependence of the $\\rho-\\omega$ Mixing Amplitude in a   Hadronic Model",
    "url": "https://arxiv.org/abs/nucl-th/9301002"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dc84366a-be2c-46ec-8b75-2a0db096f6ee",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}