论文标题

Y(4630)作为HADRONEN共鸣状态的解释

Explanation of Y(4630) as hadronic resonant state

论文作者

Mei, Xiao-Hui, Yu, Zhuo, Song, Mao, Guo, Jian-You, Li, Gang, Luo, Xuan

论文摘要

在发现Y(4630)之后,理论家给出了各种解释。我们发现,如果将y(4630)解释为$λ_c\barλ_c$系统的D波谐振状态,则粒子质量,衰减宽度和所有量子数与实验观测一致。我们使用波恩近似来获取一个玻色子交换模型的相互作用势,然后扩展复杂的缩放法(CSM)以计算结合和谐振状态。结果表明,$λ_C\barλ_c$系统不仅可以形成S波的结合状态,还可以形成高角度动量的谐振状态,$^3D_1 $ wave resonant状态可以很好地解释y(4630)的结构。

After Y(4630) is discovered, theorists have given various explanations. We find that if Y(4630) is interpreted as the D-wave resonant state of $Λ_c \bar Λ_c$ system, the particle mass, decay width and all quantum numbers are consistent with experimental observations. We use the Bonn approximation to get the interaction potential of one boson exchange model, then extend the complex scaling method (CSM) to calculate the bound and resonant states. The results indicate that the $Λ_c \barΛ_c$ system can form not only the bound state of S wave, but also the resonant state of the high angular momentum, and the $^3D_1$ wave resonant state can explain the structure of Y(4630) very well.

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