{
  "annotation_id": "01cab9e1-7f0f-40dc-8e22-09cf2b6562c3",
  "date_created": "2026-03-02T18:00:25.841000Z",
  "date_modified": "2026-03-02T18:00:25.841000Z",
  "file_hash": "f3109a75bf2f513294fccdcf5ad8414f175284a050d17c8ce653ea60410d5db7",
  "private": false,
  "record": {
    "abstract": "This paper describes the derivation of a new representation of an $SU(2)_L\n\\times SU(2)_R$ locally-invariant model of the strong interactions called\nquantum hadrodynamics 3 (QHD-III). QHD-III is a gauge-invariant theory based on\nthe linear $\\sigma$ model, the gauge bosons being the $\\rho$ and the $a_1$. The\nnew representation considerably simplifies the lagrangian. To derive the new\nrepresentation, the gauge invariance of the model is exploited. The role of the\ngauge boson masses in gauge-invariant models of the strong interactions based\non the $\\sigma$ model is also discussed, and it is shown that these masses are\nnecessary if the pion is to survive as a physical field.",
    "arxiv_id": "nucl-th/9812010",
    "authors": [
      "Gary Prezeau"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.59.2301",
    "journal_ref": "Phys.Rev. C59 (1999) 2301-2304",
    "title": "Gauge invariance in quantum hadrodynamics",
    "url": "https://arxiv.org/abs/nucl-th/9812010"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b8b53c7e-2489-4fd1-86c0-9483cf465e14",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}