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Measurement of the branching fraction and decay rate asymmetry of B-→Dπ+π-π0K-

Aubert, B. et al. (2005) Measurement of the branching fraction and decay rate asymmetry of B-→Dπ+π-π0K-. Physical Review D, 72 (7). 071102. ISSN 1550-7998

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Abstract

We report the observation of the decay B-→Dπ+π-π0K-, where Dπ+π-π0 indicates a neutral D meson detected in the final state π+π-π0, excluding KS0π0. This doubly Cabibbo-suppressed decay chain can be used to measure the CKM phase γ. Using about 229×106 e+e-→BB̅ events recorded by the BABAR experiment at the PEP-II e+e- storage ring, we measure the branching fraction B(B-→Dπ+π-π0K-)=(5.5±1.0(stat.)±0.7(syst.))×10-6 and the decay rate asymmetry A(B-→Dπ+π-π0K-)=-0.02±0.16(stat.)±0.03(syst.) for the full decay chain.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sharon Beastall
Date Deposited: 30 Jun 2011 12:31
Last Modified: 30 Jun 2011 12:31
URI: http://eprints.hud.ac.uk/id/eprint/10851

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