论文标题

$ x_ {0}(2900)$和$ x_1(2900)$的分子图片

Molecular picture for $X_{0}(2900)$ and $X_1(2900)$

论文作者

He, Jun, Chen, Dian-Yong

论文摘要

受到$ x_ {0}(2900)$和$ x_1(2900)$的启发。从相互作用中的结合状态和虚拟状态被搜索为散射幅度复杂能平面中的极点。 A bound state with $I(J^P)=0(0^+)$ and a virtual state with $0(1^-)$ are produced from the $K^*\bar{D}^*$ interaction and $K\bar{D}_1$ interaction, and can be related to the $X_{0}(2900)$ and $X_1(2900)$ observed at LHCb, respectively.具有$ i(j^p)= 0(1^+)$的绑定状态和带有$ i(j^p)= 0(2^+)$的虚拟状态也可以从$ k^*\ bar {d}^*$与小$α$值相互作用的相互作用中进行预测,以后可以在实验中搜索。

Inspired by the newly observed $X_{0}(2900)$ and $X_1(2900)$ at LHCb, the $K^*\bar{D}^*$ and $K\bar{D}_1$ interactions are studied in the quasipotential Bethe-Salpeter equation approach combined with the one-boson-exchange model. The bound and virtual states from the interactions are searched for as the poles in the complex energy plane of scattering amplitude. A bound state with $I(J^P)=0(0^+)$ and a virtual state with $0(1^-)$ are produced from the $K^*\bar{D}^*$ interaction and $K\bar{D}_1$ interaction, and can be related to the $X_{0}(2900)$ and $X_1(2900)$ observed at LHCb, respectively. A bound state with $I(J^P)=0(1^+)$ and a virtual state with $I(J^P)=0(2^+)$ are also predicted from the $K^*\bar{D}^*$ interaction with a small $α$ value, which can be searched in future experiments.

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