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arXiv 1406.6967hep-ph
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四夸克态$Z_c(3900)$

$Z_c(3900)$ as a Four-Quark State

Leonard S. Kisslinger, Steven Casper

摘要:

利用QCD求和规则方法,我们导出了由两个粲夸克和两个轻夸克组成的态$c\bar{c}u\bar{d}$的相关子$Π^Z$,并进行了Borel变换得到了$Π^Z(M_B)$。由此我们找到了$M_B\simeq 3.9 \pm .2$ GeV的解,表明$Zc(3900)$是一个四夸克态。

英文摘要:

Using the method of QCD Sum Rules, we derive the correlator $Π^Z$ for a state consisting of two charm quarks and two light quarks, $c\bar{c}u\bar{d}$, and carry out a Borel transform to find $Π^Z(M_B)$. From this we find the solution that $M_B\simeq 3.9 \pm .2$ GeV, showing that the $Zc(3900)$ is a tetra-quark 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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