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arXiv 0711.2660hep-ex
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c-cbar阈附近轻子D和D_s衰变

Leptonic D and D_s Decays near c-cbar Threshold

Steven R. Blusk

摘要:

我们提出了最近的结果从CLEO合作的轻子衰变率的$D$和$D_s$附近的$c\bar{c}$生产阈值。从这些衰变率中,我们得到了衰变常数f_D =(222.6 ± 16.7 ^{+2.8}-3.4})MeV,f_Ds =(274 ± 10 ± 5)MeV,f_Ds/f_D = 1.23 ± 0.11 ± 0.03。

英文摘要:

We present recent results from the CLEO Collaboration on leptonic decay rates of $D$ and $D_s$ near $c\bar{c}$ production threshold. From these decay rates, we extract the decay constants, f_D = (222.6+-16.7^{+2.8}_{-3.4}) MeV, f_Ds = (274+-10+-5) MeV, and the ratio f_Ds/f_D = 1.23+-0.11+-0.03.

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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