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Published August 4, 2006 | Published
Journal Article Open

Observation of B^0 Meson Decay to a_1^±(1260)π^∓


We present a measurement of the branching fraction of the decay B^0→a_1^±(1260)π^∓ with a_1^±(1260)→π^∓π^±π^±. The data sample corresponds to 218×10^6 BB pairs produced in e^+e^- annihilation through the Υ(4S) resonance. We measure the branching fraction B(B^0→a_1^±(1260)π^∓)B(a_1^±(1260)→π^∓π^±π^±)=(16.6±1.9±1.5)×10^(-6), where the first error quoted is statistical and the second is systematic.

Additional Information

© 2006 The American Physical Society. Received 24 March 2006; published 4 August 2006.

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Published - AUBprl06g.pdf


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