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Praezisionsmessung der Vorwaerts-rueckwaerts-Asymmetrie von b-Quarks: Bestimmung des elektroschwachen Mischungswinkel sin sup 2 theta sup l sub e sub f sub f
A novel method is used to measure the b quark forward-backward asymmetry at the Z pole on a sample of 2,636,000 hadronic events collected with the DELPHI detector in 1992 to 1995. An enhanced impact parameter tag is applied to the data to obtain a high purity b sample. For each event hemisphere the...
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| Lenguaje: | ger |
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Iowa State U. Ames Lab.
2001
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| Acceso en línea: | http://cds.cern.ch/record/744924 |