{
  "id": "hep-ph/0412072",
  "version": "v1",
  "published": "2004-12-06T05:20:31.000Z",
  "updated": "2004-12-06T05:20:31.000Z",
  "title": "Formation of η'(958)-mesic nuclei and axial U_A(1) anomaly at finite density",
  "authors": [
    "Hideko Nagahiro",
    "Satoru Hirenzaki"
  ],
  "comment": "4 pages, 3 figures",
  "journal": "Phys.Rev.Lett. 94 (2005) 232503",
  "doi": "10.1103/PhysRevLett.94.232503",
  "categories": [
    "hep-ph",
    "nucl-ex",
    "nucl-th"
  ],
  "abstract": "We discuss the possibility to produce the bound states of the $\\eta'(958)$ meson in nuclei theoretically. We calculate the formation cross sections of the $\\eta'$ bound states with the Green function method for ($\\gamma$,p) reaction and discuss the experimental feasibility at photon facilities like SPring-8. We conclude that we can expect to observe resonance peaks in ($\\gamma$,p) spectra for the formation of $\\eta'$ bound states and we can deduce new information on $\\eta'$ properties at finite density. These observations are believed to be essential to know the possible mass shift of $\\eta'$ and deduce new information of the effective restoration of the chiral $U_A(1)$ anomaly in the nuclear medium.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-12-06T05:20:31.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "25.20.-x",
      "14.40.-n",
      "36.10.Gv"
    ],
    "keywords": [
      "finite density",
      "bound states",
      "formation cross sections",
      "green function method",
      "nuclear medium"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 666258
    }
  }
}