标题： 格点QCD中的重重子谱 显示英文标题

标题： Heavy-Baryon Spectroscopy from Lattice QCD

摘要： 我们使用四维晶格计算来确定粲重子和底重子的质量所需的全QCD（量子色动力学，夸克和胶子强相互作用的非阿贝尔规范理论）路径积分。在粲夸克扇区，除了自旋为1/2的$\Xi_{cc}$外，我们的结果与实验结果在系统误差范围内一致，对于该态我们发现其同位旋平均质量为$\Xi_{cc}$，即$3665\pm17\pm14^{+0}_{-78}$MeV。我们预测自旋为1/2的$\Omega_{cc}$（同位旋平均）的质量为$3763\pm19\pm26^{+13}_{-79}$ {兆电子伏特} 。在底夸克扇区，我们的结果也与实验观测和其他晶格计算在统计误差和系统误差范围内一致。特别是，我们发现$\Omega_b$的质量与最近的CDF测量结果一致。 我们还预测尚未观测到的$\Xi^\prime_b$的质量应为 5955(27) MeV。 显示英文摘要

摘要： We use a four-dimensional lattice calculation of the full-QCD (quantum chromodynamics, the non-abliean gauge theory of the strong interactions of quarks and gluons) path integrals needed to determine the masses of the charmed and bottom baryons. In the charm sector, our results are in good agreement with experiment within our systematics, except for the spin-1/2 $\Xi_{cc}$, for which we found the isospin-averaged mass to be $\Xi_{cc}$ to be $3665\pm17\pm14^{+0}_{-78}$ MeV. We predict the mass of the (isospin-averaged) spin-1/2 $\Omega_{cc}$ to be $3763\pm19\pm26^{+13}_{-79}$ {MeV}. In the bottom sector, our results are also in agreement with experimental observations and other lattice calculations within our statistical and systematic errors. In particular, we find the mass of the $\Omega_b$ to be consistent with the recent CDF measurement. We also predict the mass for the as yet unobserved $\Xi^\prime_b$ to be 5955(27) MeV.