{
  "annotation_id": "875dbc52-8bfd-47f4-8248-555d36ad0800",
  "date_created": "2026-03-02T18:00:04.922000Z",
  "date_modified": "2026-03-02T18:00:04.922000Z",
  "file_hash": "c77c6d732d845ee1412f175feff9ade8bc6560820d2c6a577997bb5ac2a0873d",
  "private": false,
  "record": {
    "abstract": "We present results for the helicity amplitudes of the lowest-lying hyperon\nresonances Y*, computed within the framework of the Bonn constituent-quark\nmodel, which is based on the Bethe-Salpeter approach. The seven parameters\nentering the model were fitted to the best known baryon masses. Accordingly,\nthe results for the helicity amplitudes are genuine predictions. Some hyperon\nresonances are seen to couple more strongly to a virtual photon with finite Q^2\nthan to a real photon. Other Y*\u0027s, such as the S_{01}(1670) Lambda resonance or\nthe S_{11}(1620) Sigma resonance, couple very strongly to real photons. We\npresent a qualitative argument for predicting the behaviour of the helicity\nasymmetries of baryon resonances at high Q^2.",
    "arxiv_id": "nucl-th/0509047",
    "authors": [
      "Tim Van Cauteren",
      "Jan Ryckebusch",
      "Bernard Metsch",
      "Herbert-R. Petry"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1140/epja/i2005-10190-3",
    "journal_ref": "Eur.Phys.J. A26 (2005) 339-359",
    "title": "Helicity amplitudes and electromagnetic decays of hyperon resonances",
    "url": "https://arxiv.org/abs/nucl-th/0509047"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "249f5254-7de3-463b-955d-f47f21726917",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}