{
  "id": "hep-ex/9708021",
  "version": "v1",
  "published": "1997-08-16T21:07:25.000Z",
  "updated": "1997-08-16T21:07:25.000Z",
  "title": "Measurement of f(c -> D^*+ X), f(b -> D^*+ X) and Gamma_cc(bar)/Gamma_had using D^*+/- Mesons",
  "authors": [
    "The OPAL Collaboration",
    "K. Ackerstaff et al"
  ],
  "comment": "36 pages, LaTeX, 6 eps figures included, submitted to Zeit. Phys. C",
  "journal": "Eur.Phys.J.C1:439-459,1998",
  "doi": "10.1007/s100520050095",
  "categories": [
    "hep-ex"
  ],
  "abstract": "The production rates of D^*+/- mesons in charm and bottom events at centre-of-mass energies of about 91 GeV and the partial width of primary cc(bar) pairs in hadronic Z^0 decays have been measured at LEP using almost 4.4 million hadronic Z^0 decays collected with the OPAL detector between 1990 and 1995. Using a combination of several charm quark tagging methods based on fully and partially reconstructed D^*+/- mesons, and a bottom tag based on identified muons and electrons, the hadronisation fractions of charm and bottom quarks into D^*+/- mesons have been found to be: f(b -> D^*+ X) = 0.173 +/- 0.016 +/- 0.012 and f(c -> D^*+ X) = 0.222 +/- 0.014 +/- 0.014 The fraction of cc(bar) events in hadronic Z^0 decays, Gamma_cc(bar)/Gamma_had = Gamma(Z^0 -> cc(bar))/Gamma(Z^0 -> hadrons), is determined to be Gamma_cc(bar)/Gamma_had = 0.180 +/- 0.011 +/- 0.012 +/- 0.006 In all cases the first error is statistical, and the second one systematic. The last error quoted for Gamma_cc(bar)/Gamma_had is due to external branching ratios.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1997-08-16T21:07:25.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "measurement",
      "charm quark tagging methods",
      "primary cc",
      "external branching ratios",
      "million hadronic"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 36,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 447145
    }
  }
}