标题： 具有最大魅夸克和奇夸克的正宇称双核子的格点QCD研究 显示英文标题

标题： Lattice QCD Study of Positive Parity Dibaryons with Maximal Charm and Strangeness

摘要： 我们展示了由单味夸克组成的二重子的基态能量谱，具体是奇异性为$\mathcal{S} = -6$和魅性为$\mathcal{C} = 6$的系统。 我们的格点QCD研究基于$N_f=2+1+1$个MILC集合，使用高度改进的阶梯式夸克（HISQ）海夸克，覆盖四个格点间距和两个空间体积。 我们使用相对论重叠作用量实现的价夸克传播子，通过精心设计的算符基组评估相关矩阵，并在$S = 0$和$S = 2$自旋通道中提取可靠的基态能量估计值。 通过检查二重子态与相应双重子阈值之间的能量分离，我们探讨了它们的结合特性与相互作用动力学。 这些结果有助于更深入地理解单味二重子态随夸克质量变化的特性。 在$S=0$通道中，$\Omega_{ccc}$-$\Omega_{ccc}$系统表现出一个束缚态的清晰信号，而$\Omega$-$\Omega$系统非常接近阈值，使得难以得出明确结论。 对于$S=2$，两个系统都被发现是未束缚的。 显示英文摘要

摘要： We present the ground-state energy spectra of dibaryons composed of single-flavor quarks, specifically systems with strangeness $\mathcal{S} = -6$ and charm $\mathcal{C} = 6$. Our lattice QCD study is based on $N_f=2+1+1$ MILC ensembles with highly improved staggered quark (HISQ) sea quarks, spanning four lattice spacings and two spatial volumes. We employ valence quark propagators realized using a relativistic overlap action, evaluate correlation matrices with carefully designed operator bases, and extract reliable ground-state energy estimates in the $S = 0$ and $S = 2$ spin channels. We explore their binding characteristics and interaction dynamics by examining the energy separation between the dibaryon states and the corresponding two-baryon thresholds. These results contribute to a deeper understanding of single-flavor dibaryon states as a function of the quark masses. In the $S=0$ channel, the $\Omega_{ccc}$-$\Omega_{ccc}$ system exhibits a clear signal of a bound state, while the $\Omega$-$\Omega$ system lies very close to the threshold, making it difficult to draw definitive conclusions. For $S=2$, both systems are found to be unbound.