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arXiv 0910.3052hep-ex
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$D^+ \to K_S^0 K^+$和$D^+_s \to K_S^0 π^+$分支比的测量

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

E. Won, B. R. Ko

摘要:

我们报告了一个改进的测量$D^+ \to K_S^0 K^+$和$D^+_s\to K_S^0 π^+$分支比使用605 FB $^{-1}$的数据收集与贝尔探测器在KEKB不对称能量$e^+ e^-$对撞机。测量的分支比相对于Cabibbo有利的模式是$\mathcal{B}(D^+ \to K_S^0 K^+)/\mathcal{B}(D^+ \to K_S^0 π^+)$ = 0.1899 $\pm0.0011\pm$ 0.0022和$\mathcal{B}(D^+_s \to K_S^0 π^+)/\mathcal{B}(D^+_s \to K_S^0 K^+)$ = 0.0803 $\pm0.0024\pm$ 0.0019,其中第一个不确定性是统计的,第二个是系统的。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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