Measurement of the B0 --> K0S K0S K0S Branching Fraction

Details Measurement of the B0 --> K0S K0S K0S Branching Fraction Measurement of the B0 --> K0S K0S K0S Branching Fraction

2004-08-16

arxiv.org/abs/hep-ex/0408065v1

Physics

High Energy Physics

High Energy Physics - Experiment

20 pages, 6 postscript figues, submitted to ICHEP2004

Scientific paper

We report a preliminary measurement of the branching fraction for the decay $B^0 \to K^0_sK^0_sK^0_s ,$ where the $K^0_s$ mesons are reconstructed through the decay $K^0_s\to\pi^+ \pi^- .$ The measurement was performed on a sample of $211\times 10^6$ $B\bar{B}$ pairs collected by the BABAR detector running on the $\Upsilon (4S)$ resonance at the PEP-II storage ring. The branching fraction is measured to be $${\cal B}(B^0 \to K^0_sK^0_sK^0_s)= (6.5\pm 0.8\pm 0.8) \times 10^{-6},$$ where the errors are statistical and systematic, respectively.

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