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arXiv · 0808.0579

Search for B+ meson decay to a1+ K*0

The BABAR Collaboration·B. Aubert
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Abstract

We present the preliminary result of a search for the decay B+- --> a1+-K*0. The data, collected with the BaBar detector at the Stanford Linear Accelerator Center, represent 465 million BB pairs produced in e+e- annihilation at the Y(4s) energy. The result for the branching fraction is: B(B+ --> a1+ K*0) * B(a1+ --> pi+pi-pi+) = (0.7 +0.5/-0.4 +/-0.7) x 10-6, corresponding to an upper limit at 90% confidence level of 1.6 x 10-6. The first error quoted is statistical, the second systematic.

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The BABAR Collaboration, B. Aubert. 2008-08-05. Search for B+ meson decay to a1+ K*0. https://doi.org/10.1103/physrevd.82.091101

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