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arXiv 0712.0945hep-ex
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Belle关于D^0混合的最新结果

Recent results on D^0 mixing from Belle

B. Golob

摘要:

我们最近的测量报告的$D^0-\bar{D}^0$混合和$CP$违反参数进行的贝尔实验。本文首先给出了在$D^0\to K^+K^-, π^+π^-$衰变研究中出现的中性$D$介子系统中混合现象的证据。利用含时Dalitz分析$D^0\to K_Sπ^+π^-$衰变,我们还得到了迄今为止最精确的两个$D$介子质量本征态的质量差的测定。所提出的结果是基于540 FB $^{-1}$的数据记录的贝尔探测器在KEKB $e^+e^-$对撞机。最后,我们对未来的测量进行了简短的展望。

英文摘要:

We report on recent measurements of the $D^0-\bar{D}^0$ mixing and $CP$ violation parameters performed by the Belle experiment. The evidence for the mixing phenomena in the system of neutral $D$ mesons, arising in the study of $D^0\to K^+K^-, π^+π^-$ decays is presented first. Using a time dependent Dalitz analysis of $D^0\to K_Sπ^+π^-$ decays we also obtained the most precise up-to-date determination of the mass difference of the two $D$ meson mass eigenstates. The presented results are based on 540 fb$^{-1}$ of data recorded by the Belle detector at the KEKB $e^+e^-$ collider. We conclude with short prospects for the future measurements.

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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