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

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

1998-02-26

arxiv.org/abs/hep-ex/9802023v2

Phys.Rev.Lett.80:5493-5497,1998

Physics

High Energy Physics

High Energy Physics - Experiment

12 page postscript file, postscript file also available through http://w4.lns.cornell.edu/public/CLNS

Scientific paper

10.1103/PhysRevLett.80.5493

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 $D^0 \pi^-$ by $0.055 \pm 0.014 \pm
0.005$.

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