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arXiv 0901.1553hep-ph
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X的歧义(3872)

Ambiversion of X(3872)

Ou Zhang, C. Meng, H. Q. Zheng

摘要:

利用耦合道Flatté公式,对X(3872)的最新Belle数据进行了分析。发现了除了以前文献中讨论的束缚态/虚态极点之外,接近\textit{below} $D^0D^{*0}$阈值的第三个片极点。在$D^0D^{*0}$阈值附近的两个极点的共存表明X(3872)可能是普通的$c\bar c$ $2 ^3P_1$态原点,被强耦合沟道效应扭曲。后者表现为分子束缚态(或虚态)。

英文摘要:

An analysis including most recent Belle data on X(3872) is performed, using coupled channel Flatté formula. A third sheet pole close to but \textit{below} $D^0D^{*0}$ threshold is found, besides the bound state/virtual state pole discussed in previous literature. The co-existence of two poles near the $D^0D^{*0}$ threshold indicates that the X(3872) may be of ordinary $c\bar c$ $2 ^3P_1$ state origin, distorted by strong coupled channel effects. The latter manifests itself as a molecular bound state (or a virtual state).

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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