论文标题
晶格QCD中的好坏diquark属性和空间相关性
Good and bad diquark properties and spatial correlations in lattice QCD
论文作者
论文摘要
我们在完整的QCD中以量规不变的形式上的晶格上学习好，坏和不到的diquarks。我们建立了他们的光谱质量，其源于物理点的突出，观察到与现象学期望的一致。我们发现，只有良好的diquark具有吸引人的夸克夸克空间相关性，带有球形形状和尺寸$ \ sim0.6 $ fm。我们的结果为使用良好的光diquark有效自由度对低覆盖的重子谱进行建模提供了定量支持。
We study good, bad and not-even-bad diquarks on the lattice in a gauge-invariant formalism in full QCD. We establish their spectral masses with short extrapolations to the physical point, observing agreement with phenomenological expectations. We find that only the good diquark has attractive quark-quark spatial correlations, with spherical shape and size $\sim0.6$ fm. Our results provide quantitative support for modelling the low-lying baryon spectrum using good light diquark effective degrees of freedom.
