期刊论文

Study of $Y\left( {4390} \right)$ in the One-Boson-Exchange Potential Model

中文

武汉大学学报(理学版)

1671-8836

2019

65

5

495-502

10.14188/j.1671-8836.2019.05.011

中央高校基本科研业务费项目资助（CCNU18TS029）；

本校为第一机构

针对2016年BESⅢ合作组发现的新粒子$Y\left( {4390} \right)$,采用单玻色子交换势(one-boson-exchange potential,OBEP)模型分析其组成;综合考虑了$\pi $、$\sigma $、$\rho $、$\omega $、$\eta $ 介子的交换效应,轨道波函数$S - D$波的混合效应,以及交换势函数中$\delta $ 项的贡献,给出$Y\left( {4390} \right)$的完整单玻色子交换势。将$Y\left( {4390} \right)$理解为量子数为${J^{PC}} = {1^{ - - }}$的${{\bar D}_1}{D^*}/{D_1}{{\bar D}^*}$系统,利用薛定谔方程求解了系统波函数的数值解,对系统的质量、方均根半径、组分等性质进行了预言,认为$Y\left( {4390} \right)$可以看作是${J^{...

In this paper,we study the composition of the new particle $Y\left( {4390} \right)$ observed by the BESⅢ collaboration in 2016,within the framework of the one-boson-exchange potential (OBEP) model.Considering the exchange effects due to $\pi $,$\sigma $,$\rho $,$\omega $,$\eta $ mesons,the contributions of the orbital $S - D$ wave function mixing,as well as the $\delta $ term in the exchange potential,the complete oneboson-exchange potential of $Y\left( {4390} \right)$ is given.Interpreting the newly observed $Y\left( {4390} \right)$ as ${{\ba...