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arXiv · hep-ex/9712023

Measurement of $Br(D^{0}\to K^{-}π^{+})$ using Partila Reconstruction of $\bar{B}\to D^{*+}X\ell^{-}\barν$

CLEO Collaboration·M. Artuso et al
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Abstract

We present a measurement of the absolute branching fraction for $D^0 -> K^- pi^+$ using the reconstruction of the decay chain $Bbar -> D^{*+} X l^- nubar $, $D^{*+} -> D^0 pi^+$ where only the lepton and the low-momentum pion from the $D^{*+}$ are detected. With data collected by the CLEO II detector at the Cornell Electron Storage Ring, we have determined $Br(D^0 -> K^- pi^+)= [3.81 +- 0.15(stat.) +- 0.16(syst.)]%$.

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CLEO Collaboration, M. Artuso et al. 1997-12-17. Measurement of $Br(D^{0}\to K^{-}π^{+})$ using Partila Reconstruction of $\bar{B}\to D^{*+}X\ell^{-}\barν$. https://doi.org/10.1103/physrevlett.80.3193

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