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- TitleBestimmung des elektroschwachen Mischungswinkels sin 2 Theta eff lept aus der Vorwärts-Rückwärts-Asymmetrie von c- und b-Quarks : Rekonstruktion von D-Meson-Zerfällen bei Energien im Bereich der Z-Resonanz / von Thomas W. Brenke
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- Description1 Computerdatei (ca. 8,4 MB) : Auszüge (Titel, Abstract, Inhaltsverzeichnis, ca. 120 KB)
- Institutional NoteZugl.: Wuppertal, Univ., Diss.
- LanguageGerman
- Document typeDissertation (PhD)
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The forward-backward asymmetry of c- and b-quarks is determined from a combined analysis of several D meson decay modes. The analysis is based on the data taken with the Delphi detector at LEP in the years 1992 to 1995 at energies around the Z resonance. The heavy quark is tagged by the exclusive reconstruction of nine different D meson decay modes. Using a combined fit in the variables of the scaled energy of the D meson XE, a transformed btag variable Pev and the production angle Q cos θTh of the D meson a simultaneous determination of the forward-backward asymmetry of c- and b-quarks is performed.
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