{
  "annotation_id": "5d9da185-6b8b-4568-bc18-4497755dfc65",
  "date_created": "2026-03-02T18:00:25.441000Z",
  "date_modified": "2026-03-02T18:00:25.441000Z",
  "file_hash": "fc6b321b0fbbfce04e0cdd72d635afc5358586661347f4621d323ea246aacf8f",
  "private": false,
  "record": {
    "abstract": "The charge radii and the decay rates of the pion and kaons are calculated,\nusing the relativistic equation of motion with a linear potential. Those\nphysical quantities are quite well explained with the current quark masses in\nthe case of the pion. It is found that the Van Royen-Weisskopf paradox can be\ncleared out only in the linear potential model by considering the color degree\nof freedom of the quark in the meson. The physical quantities for the kaon are\nnot so satisfactory that it should be required to reconsider the\nCabibbo-Kobayashi-Maskawa matrix element in the kaon decay.",
    "arxiv_id": "nucl-th/9908053",
    "authors": [
      "Yongkyu Ko"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "The charge radii and the decay rates of the pseudoscalar meson",
    "url": "https://arxiv.org/abs/nucl-th/9908053"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6e18687f-d289-4f68-b0ae-6875fe0a4f76",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}