arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0810.3666hep-ex
收藏

通过CLEO-c测量提高γ/φ_3的精度

Improving the precision of gamma/phi_3 via CLEO-c Measurements

P. Naik

备注：
Submitted to the proceedings of the 34th International Conference on High Energy Physics, Philadelphia, 2008. 6 pages, 4 figures
阅读 PDF
arXiv 页面 ↗HTML 原文 ↗

摘要：

$ψ(3770) \to D^0\bar{D}^0$中的量子关联提供了对关于强相位差的信息的独特访问。通过$B \to D K$衰变的CKM相位$γ/ϕ_3$的精确测定取决于对粲混合振幅的约束、对双Cabibbo抑制振幅和相对相位的测量以及对由味或CP本征态标记的相关粲介子衰变的研究。CP标记的$D^0 \to K^-π^+π^-π^+$衰变和CP标记的$D^0 \to K^0_Sπ^+π^-$ Dalitz图仅在CLEO-c中可用。利用康奈尔电子储存环（CESR）在$\sqrt{s} = 3.77$ GeV产生的818 pb $^{-1}$ CLEO-c数据样本，我们对这些衰变进行了分析。我们描述了用于测量$D$衰变参数的技术，以及CLEO-C对$γ/ϕ_3$测量的影响。

英文摘要：

Quantum correlations in $ψ(3770) \to D^0\bar{D}^0$ provide unique access to information about strong phase differences. Precision determination of the CKM phase $γ/ϕ_3$ via $B \to D K$ decays depends upon constraints on charm mixing amplitudes, measurements of doubly-Cabibbo suppressed amplitudes and relative phases, and studies of correlated charmed meson decays tagged by flavor or CP eigenstates. CP-tagged $D^0 \to K^-π^+π^-π^+$ decays and CP-tagged $D^0 \to K^0_Sπ^+π^-$ Dalitz plots are only available at CLEO-c. Using the 818 pb$^{-1}$ CLEO-c data sample produced by the Cornell Electron Storage Ring (CESR) at $\sqrt{s} = 3.77$ GeV, we perform analyses of these decays. We describe the techniques used to measure the $D$-decay parameters, and the CLEO-c impact on measurements of $γ/ϕ_3$.

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。

↑