We report an analysis of charmless hadronic decays of neutral B mesons to the final state KS0K±π∓, using a data sample of (465±5)×106 BB̅ events collected with the BABAR detector at the Υ(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 B(B0→KS0K±π∓)=(3.2±0.5±0.3)×10-6, where the uncertainties are statistical and systematic, respectively.
Observation of the Rare Decay B0 ---> K0(s)K+-pi-+.
BIASINI, Maurizio;PACETTI, Simone;PERUZZI, Ida Marena
2010
Abstract
We report an analysis of charmless hadronic decays of neutral B mesons to the final state KS0K±π∓, using a data sample of (465±5)×106 BB̅ events collected with the BABAR detector at the Υ(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 B(B0→KS0K±π∓)=(3.2±0.5±0.3)×10-6, where the uncertainties are statistical and systematic, respectively.File in questo prodotto:
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