标题： $φ(2170)$到K介子共振态的部分衰变宽度 显示英文标题

标题： Partial decay widths of $φ(2170)$ to kaonic resonances

摘要： 在本工作中，我们研究了$\phi(2170)$到包含奇异共振态$K(1460)$、$K_1(1270)$和$K_1(1400)$的末态强衰变，这些态的实验数据最近由BESIII合作组提取出来。 这里开发的形式理论是基于将$\phi(2170)$和$K(1460)$解释为来自三轻子动力学的状态，这受到我们早期工作的启发。 对于$K_1(1270)$和$K_1(1400)$，我们研究了不同的描述，例如属于九重态轴向共振态的混合态，或者前者作为来自矢量-赝标动力学的态。 所得出的$K^+(1460)K^-$、$K^+_1(1400)K^-$和$K^+_1(1270)K^-$的部分宽度之间的比值与实验结果一致，加强了$\phi(2170)$的三体性质。 在我们的形式体系中，我们还可以解释BESIII合作组发现的$\phi(2170)$到$K^*(892) \bar K^*(892)$的抑制衰变。此外，当有更多统计数据时，我们的结果有助于阐明$K(1460)$、$K_1(1270)$和$K_1(1400)$的特性。 显示英文摘要

摘要： In this work we study the strong decays of $\phi(2170)$ to final states involving the kaonic resonances $K(1460)$, $K_1(1270)$ and $K_1(1400)$, on which experimental data have recently been extracted by the BESIII Collaboration. The formalism developed here is based on interpreting $\phi(2170)$ and $K(1460)$ as states arising from three-hadron dynamics, which is inspired by our earlier works. For $K_1(1270)$ and $K_1(1400)$ we investigate different descriptions, such as a mixture of states belonging to the nonet of axial resonances, or the former one as a state originating from the vector-pseudoscalar dynamics. The ratios among the partial widths of $K^+(1460)K^-$, $K^+_1(1400)K^-$ and $K^+_1(1270)K^-$ obtained are compatible with the experimental results, reinforcing the three-body nature of $\phi(2170)$. Within our formalism, we can also explain the suppressed decay of $\phi(2170)$ to $K^*(892) \bar K^*(892)$, as found by the BESIII Collaboration. Furthermore, our results can be useful in clarifying the properties of $K(1460)$, $K_1(1270)$ and $K_1(1400)$ when higher statistics data would be available.