{
  "annotation_id": "308560db-1ec0-4f60-9d4a-19c544da72f1",
  "date_created": "2026-03-02T18:00:14.777000Z",
  "date_modified": "2026-03-02T18:00:14.777000Z",
  "file_hash": "8986d5b635f1589fe8b7d60003fa9e109dbde0d4cc49a6ebc478ad08e7bd7345",
  "private": false,
  "record": {
    "abstract": "The gamma p ---\u003e pi+ pi- p reaction, in combination with data from the pi N\n---\u003e pi pi N reaction, allows one to obtain the s- and d-wave amplitudes for\nthe N*(1520) decay into Delta pi with absolute sign with respect to the\nN*(1520) ---\u003e N gamma helicity amplitudes. In addition one obtains the novel\ninformation on the q dependence of the amplitudes. This dependence fits exactly\nwith the predictions of the non-relativistic constituent quark models. The\nabsolute values provided by these models agree only qualitatively, and a\ndiscussion is done on the reasons for it and possible ways to improve.",
    "arxiv_id": "nucl-th/9510007",
    "authors": [
      "J. A. Gomez Tejedor",
      "F. Cano",
      "E. Oset"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1016/0370-2693(96)00404-2",
    "journal_ref": "Phys.Lett. B379 (1996) 39-44",
    "title": "The N*(1520) ---\u003e Delta pi Amplitudes Extracted from the gamma p ---\u003e   pi+ pi- p Reaction and Comparison to Quark Models",
    "url": "https://arxiv.org/abs/nucl-th/9510007"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "294e63a5-1561-4965-8fcc-e7171c414077",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}