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

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22 June 1998

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 80 (25) , 5493-5497
https://doi.org/10.1103/physrevlett.80.5493

Abstract

We have observed the decay

B^{+} \to {\bar{D}}^{0} K^{+}

, using

3.3 \times 10^{6}

B \bar{B}

pairs collected with the CLEO II detector at the Cornell Electron Storage Ring. We find the ratio of branching fractions

R \equiv B (B^{+} \to {\bar{D}}^{0} K^{+}) / B (B^{+} \to {\bar{D}}^{0} π^{+}) = 0.055 \pm 0.014 \pm 0.005

.

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This publication has 9 references indexed in Scilit:

EnhancedCPViolation with $B \to {KD}^{0} ({\bar{D}}^{0})$ Modes and Extraction of the Cabibbo-Kobayashi-Maskawa Angle $γ$
Physical Review Letters, 1997
Review of Particle Physics
Physical Review D, 1996
Search for exclusive charmless hadronicBdecays
Physical Review D, 1996
The CLEO II detector
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1992
CP violation with self-tagging Bd modes
Physics Letters B, 1991
On determining a weak phase from charged B decay asymmetries
Physics Letters B, 1991
Exclusive non-leptonic decays ofD-,D s - andB-mesons
The European Physical Journal C, 1987
Observables for the Analysis of Event Shapes in $e^{+} e^{-}$ Annihilation and Other Processes
Physical Review Letters, 1978
CP-Violation in the Renormalizable Theory of Weak Interaction
Progress of Theoretical Physics, 1973