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arXiv · hep-ex/9802023

First Observation of the Cabibbo Suppressed Decay $B^{+}\to \bar{D}^{0}K^{+}$

M. Athanas
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Abstract

We have observed the decay of the $B^-$ meson into $D^0 K^-$, using 3.3 million $B\bar B$ pairs collected with the CLEO II detector at the Cornell Electron Storage Ring. We find the branching fractions of this decay to be suppressed relative to the decay into $D^0 π^-$ by $0.055 \pm 0.014 \pm 0.005$.

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M. Athanas. 1998-03-05. First Observation of the Cabibbo Suppressed Decay $B^{+}\to \bar{D}^{0}K^{+}$. https://doi.org/10.1103/physrevlett.80.5493

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