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arXiv 0705.2470hep-ph
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手征SU(3)夸克模型中的$Qq\bar Q\bar q'$态

$Qq\bar Q\bar q'$ States in Chiral SU(3) Quark Model

H. X. Zhang, M. Zhang, Z. Y. Zhang

摘要:

本文研究了手征SU(3)夸克模型中J^{PC}=0^{++},1^{++},1 ^{+-}和2^{++}的$Qq\bar Q\bar q'$态的质量,其中Q是重夸克(c或b),q(q ')是轻夸克(u,d或s).根据我们的数值计算结果,将$[cn\bar c\bar n]_{1^{++}}$和$[cn\bar c\bar n]_{2^{++}}$(n=u,d)态分别解释为X(3872)和Y(3940)是不可能的。然而,在$bq\bar b\bar q'$系统中发现四夸克态是很有趣的。

英文摘要:

In this work, we study the masses of $Qq\bar Q\bar q'$ states with J^{PC}=0^{++}, 1^{++}, 1^{+-} and 2^{++} in the chiral SU(3) quark model, where Q is the heavy quark (c or b) and q (q') is the light quark (u, d or s). According to our numerical results, it is improbable to make the interpretation of $[cn\bar c\bar n]_{1^{++}}$ and $[cn\bar c\bar n]_{2^{++}}$ (n=u, d) states as X(3872) and Y(3940), respectively. However, it is interesting to find the tetraquarks in the $bq\bar b\bar q'$ system.

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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