将组分胶子模型扩展到重味混杂态：$c\bar{c}g$介子的统一研究
Extending the Constituent Gluon Model to Heavy-Flavour Hybrids: A Unified Study of $c\bar{c}g$ Mesons
AI总结：
研究人员将组分胶子模型扩展后，计算得到的粲夸克偶素混杂态谱与多种理论结果吻合，还给出衰变道建议，为实验识别粲夸克偶素混杂态提供了统一描述和指导。
AI中文摘要：
我们在组分胶子模型框架内研究基态粲夸克偶素混杂态的质量谱和两体强衰变性质。基于非微扰QCD赋予胶子有效质量的假设，我们引入一个新参数——组分胶子质量$m_g=450$ MeV，该参数由轻混杂态的前期研究确定，其余参数直接取自普通介子谱的成功描述，以此扩展手征夸克模型。我们系统计算了不同量子数的谱，发现其与格点QCD、势模型及其他方法的结果吻合良好，对应的衰变宽度也合理。对于实验搜寻，我们建议重点关注奇异的$1^{-+}$和$2^{+-}$态，它们分别显著衰变为$D\bar{D}_1$和$D\bar{D}_2^*$道；在普通量子数中，也建议关注衰变为轨道激发粲介子的$0^{-+}$、$2^{-+}$和$1^{+-}$态。我们的结果为粲夸克偶素混杂态提供了统一一致的描述，并为未来实验识别提供明确指导。
英文摘要：
We investigate the mass spectra and two-body strong decay properties of ground charmonium hybrids within the framework of a constituent gluon model. Based on the assumption that non-perturbative QCD endows the gluon with an effective mass, we extend the chiral quark model by introducing a single new parameter, the constituent gluon mass $m_g=450$~MeV, which is fixed from previous studies of light hybrids, while other parameters are taken directly from successful descriptions of ordinary meson spectra. We systematically compute the spectra for various quantum numbers and find good agreement with results from lattice QCD, potential models, and other approaches. The corresponding decay widths are also reasonable. For experimental searches, we recommend focusing on the exotic $1^{-+}$ and $2^{+-}$ states, which decay prominently into $D\bar{D}_1$ and $D\bar{D}_2^*$ channels, respectively. Among ordinary quantum numbers, the $0^{-+}$, $2^{-+}$, and $1^{+-}$ states with significant decays into orbitally excited charm mesons are also suggested. Our results provide a unified and consistent description of charmonium hybrids and offer clear guidance for future experimental identification.
