{
  "annotation_id": "b1ed1805-b5eb-40da-aa30-588694864a69",
  "date_created": "2026-03-02T18:00:18.520000Z",
  "date_modified": "2026-03-02T18:00:18.520000Z",
  "file_hash": "6b78e8d70c518dfeeabc3a9cc598ae270ae33932967c3dbe160d3505699f7f2c",
  "private": false,
  "record": {
    "abstract": "We calculate the cross sections for the $p(p,n\\pi^{+})p$ and $p(p,p\\pi^{0})p$\nreactions for proton beam energies near threshold in a covariant\none-boson-exchange model, which incorporates the exchange of $\\pi$, $\\rho$,\n$\\sigma$ and $\\omega$ mesons and treats both nucleon and delta isobar as\nintermediate states. The final state interaction effects have also been\nincluded. The $\\omega$ meson exchange is found to contribute significantly at\nthese energies, which, along with other meson exchanges, provides an excellent\nagreement with the data. The cross sections at beam energies $\\leq$ 300 MeV are\nalmost free from the contributions of the $\\Delta$ isobar excitation.",
    "arxiv_id": "nucl-th/9611013",
    "authors": [
      "R. Shyam",
      "U. Mosel"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/S0370-2693(98)00297-4",
    "journal_ref": "Phys.Lett. B426 (1998) 1-6",
    "title": "$NN \\to NN \\pi$ reaction near threshold in a covariant   one-boson-exchange model",
    "url": "https://arxiv.org/abs/nucl-th/9611013"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c85c48bf-4341-4f63-8585-b2265859f1d6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}