Measurement of the B + and B 0 Lifetimes

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The lifetimes of the B + B u and B 0 B d mesons have been measured using a sample of 150,000 hadronic Z 0 decays collected by the SLD experiment at the SLC between 1993 and 1995. The analysis reconstructs the decay length and charge of the B meson using a novel topological technique. This method results in a high statistics sample of 6033 3665 charged neutral vertices. The ratio of B + : B 0 decays in the charged neutral sample is 1:8 : 1 1 : 2 : 3. A maximum likelihood t procedure nds the following preliminary results: B +

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تاریخ انتشار 1996