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Item Summary

Title: Measurement of branching fractions and CP violation in B -> ncK and observation of B± -> ppK±
Authors: Fang, Fang
Advisor: Browder, Thomas
Issue Date: Dec-2003
Publisher: University of Hawaii at Manoa
Abstract: We report measurements of branching fractions for charged and neutral B -> ncK decays, and determine the nc mass and width. The results are based on an analysis of 29.1 fb-1 of data collected by the Belle detector at KEKB. We also report a measurement of the CP violation parameter sin(2ø1) in B0 -> ncK0s based on an analysis of a 78 fb-1 of data sample. We report the observation of the decay mode B± -> ppK± based on an analysis of 29.4 fb -1 of data collected by the Belle detector at KEKB. This is the first example of a b -> s transition with baryons in the final state. The pp mass spectrum in this decay is inconsistent with phase space and is peaked at low mass. The branching fraction for this decay is measured to be B(B± -> ppK±) = (4.7(stat+1.1 -0.9) ± 0.5(syst)) x 10-6. We also report upper limits for the decays B0 -> ppKs and B± -> ppπ±.
Description: xv, 128 leaves
Rights: All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
Appears in Collections:Ph.D. - Physics

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