发表机构
Changzhou Institute of Industry Technology; Nanjing Normal University; Yancheng Institute of Technology; Changzhou University of Information Technology; Lanzhou University（常州工业技术学院; 南京师范大学; 盐城工学院; 常州信息职业技术学院; 兰州大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究在手征夸克模型结合 $^3P_0$ 衰变机制下，解释 $\Omega_c$ 激发态谱，将多个观测态归类为 $\lambda$ 模 $1P$ 态，并指出部分态需分子或混合态解释。
AI 中文摘要
在本工作中，我们在手征夸克模型框架下，结合 $^3P_0$ 衰变机制，研究了 $\Omega_c$ 重子低能轨道激发态的质量和衰变性质。继 LHCb 合作组的观测之后，我们将先前对 $\Xi_c^{\prime}$ 系统的研究扩展到 $\Omega_c$ 系统，所有模型参数均继承自我们早期的工作。我们的结果一致地描述了观测到的 $\Omega_c$ 谱：$\Omega_c(3000)$、$\Omega_c(3050)$、$\Omega_c(3065)$ 和 $\Omega_c(3090)$ 分别被很好地描述为 $\lambda$ 模 $1P$ 态，其 $J^P$ 分别为 $1/2^-$、$3/2^-$、$3/2^-$ 和 $5/2^-$。$\Omega_c(3119)$ 不能被描述为纯三夸克激发。此外，$\Omega_c(3185)$ 和 $\Omega_c(3327)$ 分别作为纯 $2S$ 和 $1D$ 重子激发是不被支持的，这表明替代的分子态或混合态方案值得进一步研究。这些结果为低能 $\Omega_c$ 谱提供了一致的图像，并促进了进一步的实验检验。
英文摘要
In this work, the mass and decay properties for low-lying orbital excitations of $Ω_c$ baryons are investigated within the chiral quark model combined with the $^3P_0$ decay mechanism. Following the LHCb Collaboration's observations, we extend our previous study of the $Ξ_c^{\prime}$ system to the $Ω_c$ system, with all model parameters inherited from our earlier work. Our results consistently describe the observed $Ω_c$ spectrum: $Ω_c(3000)$, $Ω_c(3050)$, $Ω_c(3065)$, and $Ω_c(3090)$ are well described as $λ$-mode $1P$ states with $J^P=1/2^-$, $3/2^-$, $3/2^-$, and $5/2^-$, respectively. $Ω_c(3119)$ cannot be described as a pure three-quark excitation. Furthermore, the $Ω_c(3185)$ and $Ω_c(3327)$ may be assigned to the $2S$ and $1D$ states, respectively. These results offer a coherent picture of the low-lying $Ω_c$ spectrum and motivate further experimental tests.
