Measurement of the Ds++ and Ds++ branching ratios
1995
Using the CLEO II detector we measure B(D s + Ⅵηe + ν)/B(D s + Ⅵφe + ν)=1.24±0.12±0.15, B(D s + Ⅵη ′ e + ν)/B(D s + Ⅵφe + ν)=0.43±0.11±0.07, and B(D s + Ⅵη ′ e + ν)/B(D s + Ⅵηe + ν)=0.35±0.09±0.07. We find the ratio of vector to pseudoscalar final states, B(D s + Ⅵφe + ν)/B(D s + Ⅵ(η+η ′ )e + ν)=0.60±0.06±0.06, which is similar to the ratio found in nonstrange D decays.
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