{
  "annotation_id": "f438581c-eaf6-47ef-a4a8-cb44f0073c73",
  "date_created": "2026-03-02T18:00:04.913000Z",
  "date_modified": "2026-03-02T18:00:04.913000Z",
  "file_hash": "363b5872d96aa2248412b59b5269ba4ff1e67d6655f36fa4de0154fa0b35759d",
  "private": false,
  "record": {
    "abstract": "In these lecture notes I discuss an algebraic model of baryons and\npentaquarks, in particular a stringlike collective model is considered in which\nthe radial excitations of baryons and pentaquarks are interpreted as rotations\nand vibrations of the strings. The algebraic structure of the model makes it\npossible to derive closed expressions for physical observables, such as masses\nand electromagnetic and strong couplings. The model is applied to the mass\nspectrum and magnetic moments of baryon resonances of the nucleon and delta\nfamilies and to exotic baryons of the theta family. The ground pentaquark is\npredicted to have angular momentum and parity J(P)=1/2(-) and a small magnetic\nmoment of 0.382 nuclear magnetons.",
    "arxiv_id": "nucl-th/0504079",
    "authors": [
      "Roelof Bijker"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "The structure of the nucleon: baryons and pentaquarks",
    "url": "https://arxiv.org/abs/nucl-th/0504079"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e78a1fac-1246-4d0f-a2e9-cbd9d1861dc0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}