Ground states and first radial excitations of vector tetraquark states with explicit P-waves via QCD sum rules  

作　　者：Zhi-Gang Wang 王志刚(Department of Physics,North China Electric Power University,Baoding 071003,China)

机构地区：[1]Department of Physics,North China Electric Power University,Baoding 071003,China

出　　处：《Chinese Physics C》2024年第10期40-47,共8页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(12175068)。

摘　　要：In this study,we chose the diquark-antidiquark type four-quark cuents with an explicit P-wave betweenthe diquark and antidiquark pairs to study the ground states and first radial exeitations of the hidden-charm tetra.quark states with quantum numbers J^(PC)=1^(--).We also obtained the lowest vector tetraguark masses and made pos.sible assignments of the existing Ystates,There indeed exists a hidden-charm tetraquark state with J^(PC)=1^(--) at anenergy of approximately 4.75 GeV as the first radial exeitation that accounts for the BESIII data.

关 键 词：tetraguark state QCD sum rules 

分 类 号：O572.33[理学—粒子物理与原子核物理]