{
  "annotation_id": "e3bfec9a-6423-4370-ba03-5c06078a540f",
  "date_created": "2026-03-02T17:59:56.790000Z",
  "date_modified": "2026-03-02T17:59:56.790000Z",
  "file_hash": "14bdc01b4eb61d2b2d4aa856cc290334be6fb8dc71597b4a106a9083f0b533f2",
  "private": false,
  "record": {
    "abstract": "I make the case that the nucleon excitations do not exist as isolated higher\nspin states but are fully absorbed by (K/2,K/2)*[(1/2,0)+ (0,1/2)] multiplets\ntaking their origin from the rotational and vibrational excitations of an\nunderlying quark--diquark string. The \\Delta (1232) spectrum presents itself as\nthe exact replica (up to \\Delta (1600)) of the nucleon spectrum with the K-\nclusters being shifted upward by about 200 MeV. QCD inspired arguments support\nlegitimacy of the quark-diquark string. The above K multiplets can be mapped\n(up to form-factors) onto Lorentz group representation spaces of the type\n\\psi_\\mu_1...\\mu_K, thus guaranteeing covariant description of resonant states.\nThe quantum \\psi_\\mu_1...\\mu_K states are of multiple spins at rest, and of\nundetermined spins elsewhere.",
    "arxiv_id": "nucl-th/0303049",
    "authors": [
      "M. Kirchbach"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1063/1.1594316",
    "journal_ref": "AIP Conf.Proc. 670 (2003) 36-44",
    "title": "Spin and Resonant States in QCD",
    "url": "https://arxiv.org/abs/nucl-th/0303049"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ad33ea51-542c-4d04-a149-cd1fec9a5c69",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}