{
  "id": "nucl-th/0501064",
  "version": "v2",
  "published": "2005-01-26T05:28:00.000Z",
  "updated": "2005-10-22T13:05:52.000Z",
  "title": "In-medium Properties of $Θ^{+}$ as a K$π$N structure in Relativistic Mean Field Theory",
  "authors": [
    "Xian-Hui Zhong",
    "G. X. Peng",
    "Ping-Zhi Ning"
  ],
  "comment": "8 pages, 5 figures",
  "journal": "Phys. Rev.C 72, 065212 (2005)",
  "doi": "10.1103/PhysRevC.72.065212",
  "categories": [
    "nucl-th"
  ],
  "abstract": "The properties of nuclear matter are discussed with the relativistic mean-field theory (RMF).Then, we use two models in studying the in-medium properties of $\\Theta^+$: one is the point-like $\\Theta^*$ in the usual RMF and the other is a K$\\pi$N structure for the pentaquark. It is found that the in-medium properties of $\\Theta^+$ are dramatically modified by its internal structure. The effective mass of $\\Theta^+$ in medium is, at normal nuclear density, about 1030 MeV in the point-like model, while it is about 1120 MeV in the model of K$\\pi$N pentaquark. The nuclear potential depth of $\\Theta^+$ in the K$\\pi$N model is approximately -37.5 MeV, much shallower than -90 MeV in the usual point-like RMF model.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2005-10-22T13:05:52.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "21.30.Fe",
      "21.65.+f"
    ],
    "keywords": [
      "relativistic mean field theory",
      "in-medium properties",
      "relativistic mean-field theory",
      "usual point-like rmf model",
      "nuclear potential depth"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. C"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 675635
    }
  }
}