{
  "annotation_id": "13122114-19bb-4519-a3aa-203582ada426",
  "date_created": "2026-03-02T18:00:21.919000Z",
  "date_modified": "2026-03-02T18:00:21.919000Z",
  "file_hash": "b290bb6c53aa07e70526ce897a82dd1f4d0e86a098e15c6d624ce841e2ef908f",
  "private": false,
  "record": {
    "abstract": "We investigate the reactions p n -\u003e d omega and p n -\u003e d phi close to\nthreshold and at higher energies. Near threshold we calculate the S-wave\namplitudes within the framework of the two-step model which is described by a\ntriangle graph with pi-mesons in the intermediate state and find a ratio of the\nS-wave amplitudes squared of R =|A(phi)|^2/|A(omega)|^2 = (4-8) x 10^{-3}. Any\nsignificant enhancement of the experimental value of R(phi/omega) over this\nprediction can be interpreted as a possible contribution of the intrinsic s -\nanti s component in the nucleon-wave function. We present arguments that there\nis a strong resonance effect in the omega N channel close to threshold. At\nhigher energies we calculate the differential cross sections of the reactions p\nn -\u003e d omega, p n -\u003e d phi and the ratio of the phi/omega yields within the\nframework of the quark-gluon string model. An irregular behavior of the\nphi/omega-ratio is found at s \u003c= 12 GeV^2 due to the interference of the t- and\nu-channel contributions.",
    "arxiv_id": "nucl-th/9808050",
    "authors": [
      "L. A. Kondratyuk",
      "Ye. S. Golubeva",
      "M. Buescher"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Omega- and Phi-meson production in pn -\u003e dV reactions and OZI-rule   violation",
    "url": "https://arxiv.org/abs/nucl-th/9808050"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d7b7313b-17cf-451d-a8cc-152d7215c284",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}