Search for the Rare Decays B+ --> D(*)+K0s

Details Search for the Rare Decays B+ --> D(*)+K0s Search for the Rare Decays B+ --> D(*)+K0s

2005-05-31

arxiv.org/abs/hep-ex/0505099v1

Phys.Rev.D72:011102,2005

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages, 3 postscript figures, submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.72.011102

We report on the search for the rare decays $B^+ \to D^{(*)+} K^0_{s}$ in approximately 226 million $Y(\rm 4S)\to b\bar{B}$ decays collected with the BaBar detector at the PEP-II asymmetric-energy $B$ factory at SLAC. We do not observe any significant signal and we set 90% confidence level upper limits on the branching fractions, ${\ensuremath {{\cal B}(\Bp{\to}D^{+}K^0})}$ $<0.5 \times 10^{-5}$ and ${\ensuremath {{\cal B}(\Bp{\to}D^{*+}K^0})}$ $<0.9 \times 10^{-5}$.

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