{
  "id": "nucl-th/0211065",
  "version": "v2",
  "published": "2002-11-21T23:55:47.000Z",
  "updated": "2002-12-12T15:20:59.000Z",
  "title": "Near-threshold $ω$-meson production in proton-proton collisions: With or without resonance excitations ?",
  "authors": [
    "K. Tsushima",
    "K. Nakayama"
  ],
  "comment": "Fig.5 and text modified, Latex, 4 pages, 8 embedded figures, uses espcrc1.sty (included), talk presented at PANIC02, Osaka, Japan, 30 September - 4 October 2002",
  "journal": "Nucl.Phys. A721 (2003) 633-636",
  "doi": "10.1016/S0375-9474(03)01140-0",
  "categories": [
    "nucl-th",
    "hep-ph",
    "nucl-ex"
  ],
  "abstract": "We present results for the $p p \\to p p \\omega$ reaction studied by considering two different scenarios: with and without the inclusion of nucleon resonance excitations. The recently measured angular distribution by the COSY-TOF Collaboration at an excess energy of $Q = 173$ MeV and the energy dependence of the total cross section data for $\\pi^- p \\to \\omega n$ are used to calibrate the model parameters. The inclusion of nucleon resonances improves the theoretical prediction for the energy dependence of the total cross section in $pp \\to pp\\omega$ at excess energies $Q < 31$ MeV. However, it still underestimates the data by about a factor of two, and remains a problem in understanding the reaction mechanism.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2002-12-12T15:20:59.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "meson production",
      "proton-proton collisions",
      "excess energy",
      "near-threshold",
      "total cross section data"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Elsevier",
      "journal": "Nucl. Phys. A"
    },
    "note": {
      "typesetting": "LaTeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 602869
    }
  }
}