{
  "annotation_id": "126e5f8e-a4f6-4a47-a853-a81dca4b1f2d",
  "date_created": "2026-03-02T18:00:11.987000Z",
  "date_modified": "2026-03-02T18:00:11.987000Z",
  "file_hash": "52d0fda60b70d2caa212be5b4a319246feefa8467776ff9e3ec9526e06984be1",
  "private": false,
  "record": {
    "abstract": "Photo- and electroproduction of pions and eta-mesons is studied on the\nnucleon. The formalism of such reactions is presented including polarization\ndegrees of freedom and theoretical approaches are discussed. In particular, the\nthreshold and $\\Delta$-resonance region of pion photoproduction is considered\nand recent developments on low energy theorems (LET) and the E2/C2 quadrupole\nexcitation of the $\\Delta$ are presented. For eta photoproduction we show our\ncalculations for the threshold region of the new Mainz experiment and\ndemonstrate the sensitivity of this reaction to the elementary $\\eta NN$\ncoupling and the resonance parameters of the $S_{11}(1535)$. In nuclear\napplications we point out the importance and advantage of light nuclei as $d$,\n$^3H$, $^3He$ and $^4He$ for the isospin structure of the reactions as well as\nfor medium effects of the nucleon resonances.",
    "arxiv_id": "nucl-th/9401014",
    "authors": [
      "Lothar Tiator"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Meson Photo- and Electroproduction",
    "url": "https://arxiv.org/abs/nucl-th/9401014"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dcf6feca-9939-461d-9f36-5946b825067d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}