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arXiv · 0910.3052

Measurement of $D^+ \to K_S^0 K^+$ and $D^+_s \to K_S^0 π^+$ branching ratios

E. Won·B. R. Ko
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Abstract

We report an improved measurement of $D^+ \to K_S^0 K^+$ and $D^+_s\to K_S^0 π^+$ branching ratios using 605 fb$^{-1}$ of data collected with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. The measured branching ratios with respect to the Cabibbo-favored modes are $\mathcal{B}(D^+ \to K_S^0 K^+)/\mathcal{B}(D^+ \to K_S^0 π^+)$ = 0.1899$\pm0.0011\pm$0.0022 and $\mathcal{B}(D^+_s \to K_S^0 π^+)/\mathcal{B}(D^+_s \to K_S^0 K^+)$ = 0.0803$\pm0.0024\pm$0.0019 where the first uncertainties are statistical and the second are systematic.

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E. Won, B. R. Ko. 2009-12-07. Measurement of $D^+ \to K_S^0 K^+$ and $D^+_s \to K_S^0 π^+$ branching ratios. https://doi.org/10.1103/physrevd.80.111101

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