论文标题
全链Tetraquarks：$ cc \ bar {c} \ bar {c} $
Fully-charm tetraquarks: $cc\bar{c}\bar{c}$
论文作者
论文摘要
在这项工作中，我们继续研究完全重量的Tetraquarks $ cc \ bar {c} \ bar {c} $的量子数的$ j^{pc} = 0^{++}，1^{+ - }，2^{++}，2^{++} $中的非列车中的模型。借助高斯扩展方法，我们提出了$ cc \ bar {c} \ bar {c} $状态的动态计算，并考虑两种结构，梅森 - 梅森[$ \ bar {c} c $]混合。结果表明，低洼状态的能量都高于梅森 - 梅森阈值[$ \ bar {c} c $] [$ \ bar {c} c $]。但是，由于颜色结构是可能的。提出了几种共振，并预计最低的共振为6.5 GEV，并使用真实缩放方法检查共振状态的稳定性。
In this work, we continue to study the mass spectra of fully-heavy tetraquarks $cc\bar{c}\bar{c}$ with the quantum numbers of $J^{PC}=0^{++}, 1^{+-}, 2^{++}$ in the nonrelativistic chiral quark model. With the help of the Gaussian Expansion Method, we present dynamical computations for $cc\bar{c}\bar{c}$ state with considering two structures, meson-meson [$\bar{c}c$][$\bar{c}c$] and diquark-antidiquark [$cc$][$\bar{c}\bar{c}$] and their mixing. The results manifest that the energies of the low-lying states are all higher than the meson-meson thresholds [$\bar{c}c$][$\bar{c}c$]. However, resonances are possible because of the color structure. Several resonances are proposed and the lowest resonance is predicted to be 6.5 GeV and the stability of the resonance states is checked using the real scaling method.
