{
  "annotation_id": "404a9ca2-5066-494f-a6e6-1091f84d153c",
  "date_created": "2026-03-02T18:00:12.029000Z",
  "date_modified": "2026-03-02T18:00:12.029000Z",
  "file_hash": "b47b55007004bd84098922fe7f5759d5b74a82cc35625ccb2619c99b0777870b",
  "private": false,
  "record": {
    "abstract": "Relativistic covariance requires that in the constituent quark model for\nmesons the positive energy states as well as the negative energy states are\nincluded. Using relativistic quasi-potential equations the contribution of the\nnegative energy states is studied for the light and charmonium mesons. It is\nfound that these states change the meson mass spectrum significantly but leave\nits global structure untouched.",
    "arxiv_id": "nucl-th/9304023",
    "authors": [
      "Peter C. Tiemeijer",
      "J. A. Tjon"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1103/PhysRevC.48.896",
    "journal_ref": "Phys.Rev.C48:896-901,1993",
    "title": "Effects of Negative Energy Components in the Constituent Quark Model",
    "url": "https://arxiv.org/abs/nucl-th/9304023"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "de3b9540-23ed-4732-a8cf-9527465f0cd1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}