{
  "annotation_id": "94dd3564-5025-4ba4-9117-bcefb493d393",
  "date_created": "2026-03-02T18:00:11.276000Z",
  "date_modified": "2026-03-02T18:00:11.276000Z",
  "file_hash": "9ee545f53fe69530f2352c21297fc2f603453a132b170c58921b2edec3814a60",
  "private": false,
  "record": {
    "abstract": "Excited negative parity hyperon masses are calculated in a chiral bag model\nin which the pion and the kaon fields are treated as perturbations. We also\ncalculate the hadronic widths of $\\lama$ and $\\lamb$ as well as the coupling\nconstants of the lightest $I=0$ excited hyperon to the meson-baryon channels,\nand discuss how the dispersive effects of the hadronic meson-baryon decay\nchannels affect the excited hyperon masses. Meson cloud corrections to the\nelectromagnetic decay widths of the two lightest excited hyperons into ground\nstates $\\lamz$ and $\\sigz$ are calculated within the same model and are found\nto be small. Our results strengthen the argument that predictions of these\nhyperon radiative decay widths provide an excellent test for various quark\nmodels of hadrons.",
    "arxiv_id": "nucl-th/9210018",
    "authors": [
      "Y. Umino",
      "F. Myhrer"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/0375-9474(93)90248-V",
    "journal_ref": "Nucl.Phys. A554 (1993) 593-619",
    "title": "Electromagnetic Decays of Hyperons (II)",
    "url": "https://arxiv.org/abs/nucl-th/9210018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "47287f19-872f-47c9-8d3d-6a6ea79e33f5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}