{
  "id": "hep-ph/0406118",
  "version": "v1",
  "published": "2004-06-10T09:24:18.000Z",
  "updated": "2004-06-10T09:24:18.000Z",
  "title": "Can the observed enhancement in the mass spectrum of p \\bar p in J/ψ \\to γp \\bar p be interpreted by a possible p \\bar p bound state",
  "authors": [
    "Xiang Liu",
    "Xiao-Qiang Zeng",
    "Yi-Bing Ding",
    "Xue-Qian Li",
    "Hong Shen",
    "Peng-Nian Shen"
  ],
  "comment": "15 pages, 3 figures",
  "categories": [
    "hep-ph"
  ],
  "abstract": "Provided the enhancement in the $p \\bar{p}$ spectrum in radiative decay $J/\\psi \\to \\gamma p \\bar{p}$ observed by the BES collaboration is due to an existence of a $p \\bar{p}$ molecular state, we calculate its binding energy and lifetime in the linear $\\sigma$ model. We consider a possibility that the enhancement is due to a $p \\bar p$ resonance which is in either S-wave or P-wave structure and compare our results with the data.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-06-10T09:24:18.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "mass spectrum",
      "bound state",
      "enhancement",
      "molecular state",
      "p-wave structure"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 15,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 652169,
      "adsabs": "2004hep.ph....6118L"
    }
  }
}