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arXiv · 1003.0640

Observation of the Rare Decay B0 --> KsK+/-pi-/+

The BABAR Collaboration·P. del Amo Sanchez
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Abstract

We report an analysis of charmless hadronic decays of neutral B mesons to the final state KsK+/-pi-/+, using a data sample of (465 +/- 5) x 10^6 BB-bar events collected with the BABAR detector at the Y(4S) resonance. We observe an excess of signal events with a significance of 5.2 standard deviations including systematic uncertainties and measure the branching fraction to be BF(B0 --> KsK+/-pi-/+) = (3.2 +/- 0.5 +/- 0.3) x 10^-6, where the uncertainties are statistical and systematic, respectively.

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The BABAR Collaboration, P. del Amo Sanchez. 2010-08-06. Observation of the Rare Decay B0 --> KsK+/-pi-/+. https://doi.org/10.1103/physrevd.82.031101

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