{
  "id": "hep-ph/0405126",
  "version": "v2",
  "published": "2004-05-13T21:09:56.000Z",
  "updated": "2004-08-16T17:48:31.000Z",
  "title": "S-D mixing and $ψ(3770)$ production in $e^+e^-$ annihilation and B decay and its radiative transitions",
  "authors": [
    "Kui-Yong Liu",
    "Kuang-Ta Chao"
  ],
  "comment": "final version to appear in Phys.Rev.D, discussion on uncertainties associated with the color-octet matrix elements is added, 16 pages, 2 figures",
  "journal": "Phys.Rev.D70:094001,2004",
  "doi": "10.1103/PhysRevD.70.094001",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "The large decay rate observed by Belle for $B^+\\to\\psi(3770)K^+$, which is comparable to $B^+\\to\\psi(3686)K^+$, might indicate either an unexpectedly large S-D mixing angle $|\\theta|\\approx 40^o$ or the leading role of the color-octet mechanism in D-wave charmonium production in B decay. By calculating the production rate of $\\psi(3770)$ in the continuum $e^+e^-$ annihilation at $\\sqrt{s}=10.6$ GeV with these two possible approaches (i.e. the large S-D mixing and the color-octet mechanism), we show that the measurement for this process at Belle and BaBar may provide a clear cut clarification for the two approaches. In addition, the radiative E1 transition ratio $\\Gamma(\\psi(3770)\\to \\gamma\\chi_{c2})/\\Gamma(\\psi(3770)\\to \\gamma\\chi_{c1})$ may dramatically change from $\\sim$ 0.04 (for $\\theta\\approx 0^o$) to $\\sim$ 200 (for $\\theta\\approx -40^o$) due to the large S-D interference effect, thus the E1 transition measurement of $\\psi(3770)$ at BES and CLEO-c will also be very useful in clarifying this issue.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2004-08-16T17:48:31.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.40.Gx",
      "13.66.Bc",
      "12.38.Bx"
    ],
    "keywords": [
      "radiative transitions",
      "annihilation",
      "color-octet mechanism",
      "large s-d interference effect",
      "d-wave charmonium production"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 650387
    }
  }
}