{
  "id": "1202.4882",
  "version": "v2",
  "published": "2012-02-22T11:12:31.000Z",
  "updated": "2012-03-26T08:36:29.000Z",
  "title": "The ratio of decay widths of X(3872) to $ ψ^{\\prime}γ$ and $ J/ψγ$ as a test of the X(3872) dynamical structure",
  "authors": [
    "A. M. Badalian",
    "V. D. Orlovsky",
    "Yu. A. Simonov",
    "B. L. G. Bakker"
  ],
  "comment": "14 pages,2 Tables",
  "journal": "Phys. Rev. D 85, 114002 (2012)",
  "doi": "10.1103/PhysRevD.85.114002",
  "categories": [
    "hep-ph",
    "hep-ex",
    "nucl-th"
  ],
  "abstract": "Radiative decays of X(3872) with $J^{PC}=1^{++}$ are studied in the coupled-channel approach, where the $c\\bar c$ states are described by relativistic string Hamiltonian, while for the decay channels $DD^*$ a string breaking mechanism is used. Within this method a sharp peak and correct mass shift of the $2 {}^3P_1$ charmonium state just to the $D^0D^{*0}$ threshold was already obtained for a prescribed channel coupling to the $DD^*$ decay channels. For the same value of coupling the normalized wave function (w.f.) of X(3872) acquires admixture of the $1 {}^3P_1$ component with the w.f. fraction $c_1=0.153 (\\theta=8.8^\\circ$), which increases the transition rate $\\Gamma(X(3872)\\rightarrow J/\\psi\\gamma)$ up to 50-70 keV, making the ratio $R=\\frac{\\mathcal{B}(X(3872)\\rightarrow \\psi^{\\prime}\\gamma)}{\\mathcal{B}(X(3872)\\rightarrow J/\\psi \\gamma)}=0.8\\pm 0.20 (th)$ significantly smaller, as compared to $R\\simeq 5$ for X(3872) as a purely $2 {}^3P_1$ state.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-03-26T08:36:29.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.39.-x",
      "13.25.Gv"
    ],
    "keywords": [
      "decay widths",
      "dynamical structure",
      "decay channels",
      "correct mass shift",
      "coupled-channel approach"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2012,
      "month": "Jun",
      "volume": 85,
      "number": 11,
      "pages": 114002
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1090070,
      "adsabs": "2012PhRvD..85k4002B"
    }
  }
}