标题： 核子自旋结构来自格点QCD：味单态轴矢和张量电荷 显示英文标题

标题： Nucleon Spin Structures from Lattice QCD: Flavor Singlet Axial and Tensor Charges

摘要： 核子的味单态轴矢电荷和张量电荷在格点QCD中被计算。我们得到轴矢电荷为$\Delta\Sigma=\Delta u+\Delta d+\Delta s=+0.638(54)-0.347(46)-0.109(30) = +0.18(10)$，张量电荷为$\delta\Sigma=\delta u+\delta d+\delta s=+0.839(60)-0.231(55)-0.046(34) = +0.562(88)$。轴矢电荷的结果与实验结果有合理的符合，而张量电荷的结果是在实验测量之前来自格点QCD的首次预测。 显示英文摘要

摘要： The flavor singlet axial and tensor charges of the nucleon are calculated in lattice QCD. We find $\Delta\Sigma=\Delta u+\Delta d+\Delta s=+0.638(54)-0.347(46)-0.109(30) = +0.18(10)$ for the axial charge and $\delta\Sigma=\delta u+\delta d+\delta s=+0.839(60)-0.231(55)-0.046(34) = +0.562(88)$ for the tensor charge. The result for the axial charge shows reasonable agreement with the experiment and that for the tensor charge is the first prediction from lattice QCD before experimental measurements.