The Genuine Resonance of Full-Charm Tetraquarks

Universe

Xiaoyun Chen¹ 

[1] College of Science, Jinling Institute of Technology, Nanjing 211169, China;

关键词: full-charm;    quark model;    resonances;   

DOI  :  10.3390/universe7050155

来源: DOAJ

【 摘 要 】

In this work, the genuine resonance states of full-charm tetraquark systems with quantum numbers $J^{PC}=0^{++},1^{+-},2^{++}$ are searched in a nonrelativistic chiral quark model with the help of the Gaussian Expansion Method. In this calculation, two structures, meson-meson and diquark–antidiquark, as well as their mixing with all possible color-spin configurations, are considered. The results show that no bound states can be formed. However, resonances are possible because of the color structure. The genuine resonances are identified by the stabilization method (real scaling method). Several resonances for the full-charm system are proposed, and some of them are reasonable candidates for the full-charm states recently reported by LHCb.

【 授权许可】

Unknown