论文标题
$ x（4014）$作为$ d^\ ast \ bar {d}^\ ast $分子状态的可能性
The possibility of $X(4014)$ as a $D^\ast \bar{D}^\ast$ molecular state
论文作者
论文摘要
在本地隐藏量表方法的框架内，我们研究了$ d^* \ bar {d}^* $通道的近乎阈值的相互作用，带有量子数量$ i（j^{pc}）= 0（0^{++}）$，$ 0，$ 0（2^{++}）仅考虑接触相互作用，因为预计它将在阈值接近阈值附近提供主要贡献。一个极是在量子数字$ i（j^{pc}）= 0（0^{++}）$的情况下发现的一根极，可以与Belle Collaboration最近观察到的$ x（4014）$相关联。因此，我们建议$ x（4014）$可能是$ d^* \ bar {d}^* $分子状态，带有$ i（j^{pc}）= 0（0^{++}）$，以及有关$ x（4014）$的更精确的信息，例如共振参数和衰减属性，可用于其结构。
Within the framework of the local hidden gauge approach, we have studied the near-threshold interaction of the $D^* \bar{D}^*$ channel with quantum numbers $I(J^{PC}) = 0(0^{++})$, $0(2^{++})$, $1(0^{++})$, and $1(2^{++})$, respectively. The contact interaction is taken into account alone, since it is expected to give the dominant contribution near the threshold. One pole, which is found in the case of the quantum numbers $I(J^{PC}) = 0(0^{++})$, could be associated to the $X(4014)$ recently observed by the Belle Collaboration. Thus, we suggest that the $X(4014)$ may be an $D^* \bar{D}^*$ molecular state with $I(J^{PC}) = 0(0^{++})$, and more precise information about $X(4014)$, such as resonance parameters and decay properties, could be useful to shed light on its structure.
