{
  "annotation_id": "2e64f1c6-9ed5-465a-b93e-6c8f133195b2",
  "date_created": "2026-03-02T18:00:04.431000Z",
  "date_modified": "2026-03-02T18:00:04.431000Z",
  "file_hash": "e3b90ca067d66655bd30e9dd9e1106006a8f740921fdcda464e7673b4795ad0e",
  "private": false,
  "record": {
    "abstract": "Photoproduction of the pentaquark particle Theta^+ on the nucleon has been\nstudied by using an isobar and a Regge model. Using the isobar model, total\ncross sections around 100 nb for the gamma n --\u003e K- Theta+ channel and 400 nb\nfor the gamma p --\u003e {\\bar K}0 Theta+ process are obtained. The inclusion of the\nK* intermediate state yields a substantially large effect, especially in the\ngamma p --\u003e {\\bar K}0 Theta+ process. The Regge approach predicts smaller cross\nsections, i.e., less than 100 nb (20 nb) for the process on the neutron\n(proton). By using an elementary operator from the isobar model, cross sections\nfor the process on a deuteron are predicted.",
    "arxiv_id": "nucl-th/0412095",
    "authors": [
      "T. Mart",
      "A. Salam",
      "K. Miyagawa",
      "C. Bennhold"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1142/9789812701855_0022",
    "title": "Photoproduction of Theta+ on the nucleon and deuteron",
    "url": "https://arxiv.org/abs/nucl-th/0412095"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d7db9c2e-1d86-486b-8653-aa4f2da6af6f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}