{
  "annotation_id": "2e954cd0-4ecd-4979-a91c-7dd8cb47f919",
  "date_created": "2026-03-02T18:00:28.045000Z",
  "date_modified": "2026-03-02T18:00:28.045000Z",
  "file_hash": "8fd592c23764c5d06b54810b04a24db15aeaa3ca08037fc95e3ae8cfc2ff606c",
  "private": false,
  "record": {
    "abstract": "The possibility for an observation of a narrow penta-quark $Z^+$ baryon in\n$NN$ reactions is discussed. It is shown that the $pp{\\to}n\\Sigma^+K^+$\nreaction at excess energies around 100 MeV above threshold provides optimal\nconditions for $Z^+$ baryon detection by an analysis of the $nK^+$ invariant\nmass spectrum, if the $Z^+$ mass is located around 1.5 GeV involving a rather\nnarrow width.",
    "arxiv_id": "nucl-th/9909048",
    "authors": [
      "M. V. Polyakov",
      "A. Sibirtsev",
      "K. Tsushima",
      "W. Cassing",
      "K. Goeke"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1007/s100500070061",
    "journal_ref": "Eur.Phys.J. A9 (2000) 115-118",
    "title": "On the search for a narrow penta-quark Z$^+$ baryon in NN interactions",
    "url": "https://arxiv.org/abs/nucl-th/9909048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e938c139-880f-4398-981c-75723f2a789b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}