## Abstract

Measurements of the production of the weakly decaying charmed hadrons: D^{0}, D^{+}, D_{s}^{+} and Λ_{c}^{+} in both {Mathematical expression} and {Mathematical expression} events are reported. By summing the partial contributions from each of these states we measure the partial width for Z^{0} decays into a {Mathematical expression} pair as: {Mathematical expression} where the errors are statistical, systematic and due to the uncertainties in the charmed hadron branching ratios, respectively. The relative production rates for the formation of the charmed hadrons from primary c quarks is found to be in good agreement with continuum e^{+}e^{-} data at √s≈10 GeV. The measured rates of these four charmed hadrons in b hadron decays is found to account for {Mathematical expression}c or {Mathematical expression} quarks per b hadron decay. Comparison of the relative rates of the different charmed hadron species with Υ{hooked}(4 S) data indicates higher rates for D_{s}^{Emphasis>+} and Λ_{c}^{+} hadrons and lower rates of D^{0} and D^{+} mesons as expected due to the different mixture of b hadrons.

Original language | English |
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Pages (from-to) | 1-16 |

Number of pages | 16 |

Journal | Zeitschrift fur Physik C-Particles and Fields |

Volume | 72 |

Issue number | 1 |

DOIs | |

State | Published - 1 Mar 1996 |

Externally published | Yes |

## ASJC Scopus subject areas

- Physics and Astronomy (miscellaneous)

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