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arXiv 1012.3639hep-ph
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X(3872)作为负宇称强子分子的性质

Properties of X(3872) as a hadronic molecule with a negative parity

Masayasu Harada, Yong-Liang Ma

摘要:

讨论了X(3872)作为一个具有$J^{PC} = 2^{-+}$的$DD^{\ast}$强子分子的可能解释。利用唯象的拉格朗日方法,我们研究了它的辐射和强衰变性质。我们发现,我们的模型约97.6%的同位旋零分量很好地解释了现有的数据。我们预测了X(3872)辐射衰变和强衰变的部分宽度,并指出测量$\mathcal{B}(X(3872) \to χ_{c0}π^0)/\mathcal{B}(X(3872) \to χ_{c1}π^0)$的比值可以反映X(3872)的性质。

英文摘要:

We discuss the possible interpretation of X(3872) as a $DD^{\ast}$ hadronic molecule with $J^{PC} = 2^{-+}$. Using the phenomenological Lagrangian approach, we studied its radiative and strong decay properties. We find that our model with about 97.6% isospin zero component explains the existing data nicely. We predict the partial widths of the radiative and strong decays of X(3872) and show that the measurement of the ratio $\mathcal{B}(X(3872) \to χ_{c0}π^0)/\mathcal{B}(X(3872) \to χ_{c1}π^0)$ may signal the nature of X(3872).

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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