Strong decay of Y(4230)→ J/ψ f0(980) in light cone sum rules  

作　　者：谢易凌 孙昊 Yiling Xie;Hao Sun(Institute of Theoretical Physics,School of Physics,Dalian University of Technology,No.2 Linggong Road,Dalian 116024,China)

机构地区：[1]Institute of Theoretical Physics,School of Physics,Dalian University of Technology,No.2 Linggong Road,Dalian 116024,China

出　　处：《Chinese Physics C》2024年第2期66-77,共12页中国物理C（英文版）

基　　金：Hao Sun is supported by the National Natural Science Foundation of China(12075043)。

摘　　要：In this study,we assign the tetraquark state for the Y(4230) resonance and investigate the mass and decay constant of Y(4230) in the framework of SVZ sum rules through a different calculation technique.Then,we calculate the strong coupling gYJ/ψf0 by considering soft-meson approximation techniques within the framework of light cone sum rules,and we use the strong coupling gYJ/ψf0 to obtain the width of the decay Y(4230)→J/ψf0(980).Our prediction for the mass agrees with the experimental measurement,and that for the decay width of Y(4230)→J/ψf0(980) is within the upper limit.

关 键 词：light cone sum rules TETRAQUARK DECAY 

分 类 号：O572.33[理学—粒子物理与原子核物理]