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

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

2008-08-05

arxiv.org/abs/0808.0579v1

Phys.Rev.D82:091101,2010

Physics

High Energy Physics

High Energy Physics - Experiment

15 pages, 1 postscript figures, submitted to ICHEP2008

Scientific paper

10.1103/PhysRevD.82.091101

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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