{
  "annotation_id": "93e59069-a6d7-48b7-a5e8-5dfe0b9ae93b",
  "date_created": "2026-03-02T18:00:00.899000Z",
  "date_modified": "2026-03-02T18:00:00.899000Z",
  "file_hash": "ed15e57b618869f205f5d20856ced0538d413ff79a8ffaaf4fee0995105abc03",
  "private": false,
  "record": {
    "abstract": "The hadronic spectrum obtained in the framework of a QCD-inspired schematic\nmodel, is presented. The model is the extension of a previous version, whose\nbasic degrees of freedom are constituent quarks and antiquarks, and gluons. The\ninteraction between quarks and gluons is a phenomenological interaction and its\nparameters are fixed from data. The classification of the states, in terms of\nquark and antiquark and gluon configurations is based on symmetry\nconsiderations, and it is independent of the chosen interaction. Following this\nprocedure, nucleon and $\\Delta$ resonances are identified, as well as various\npenta- and hepta-quarks states. The lowest pentaquarks state is predicted at\n1.5 GeV and it has negative parity, while the lowest hepta-quarks state has\npositive parity and its energy is of the order of 2.5 GeV.",
    "arxiv_id": "nucl-th/0405053",
    "authors": [
      "M. Nunez",
      "S. Lerma",
      "P. O. Hess",
      "S. Jesgarz",
      "O. Civitarese",
      "M. Reboiro"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.70.035208",
    "title": "A schematic model for QCD. III : Hadronic states",
    "url": "https://arxiv.org/abs/nucl-th/0405053"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0b2366ae-4faa-4e98-9d2a-cdbc39500d9c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}