论文标题
SU中的Gluonic激发能量和Abelian优势（3）QCD
Gluonic-Excitation Energies and Abelian Dominance in SU(3) QCD
论文作者
论文摘要
我们介绍了静态Quark-antiquark（Q $ \ bar {\ rm Q} $）系统的第一个研究，该研究使用$ 32^4 $ lattice $β= 6.0 $。我们使用晶格上的涂抹链接变量研究了地面状态和三个激动态Q $ \ bar {\ rm q} $电位。我们发现，激发状态Q $ \ bar {\ rm Q} $电位的夸克限制力的普遍优势以及地面潜力。值得注意的是，尽管在QCD中存在激发现象，但我们发现，在最大的Abelian仪表中，在长距离长距离内，第一个Gluonic激发能量的Abelian优势。另一方面，即使在很长的距离内，也没有观察到更高的Gluonic驱散能量的Abelian优势。这表明适用于阿贝尔统治的适用激发能力区域的1至2 GEV之间存在一定的阈值。此外，我们发现，阿贝尔投影大大降低了短途$ 1/r $ $ $ $ $的行为。
We present the first study of the Abelian-projected gluonic-excitation energies for the static quark-antiquark (Q$\bar{\rm Q}$) system in SU(3) lattice QCD at the quenched level, using a $32^4$ lattice at $β= 6.0$. We investigate ground-state and three excited-state Q$\bar{\rm Q}$ potentials, using smeared link variables on the lattice. We find universal Abelian dominance for the quark confinement force of the excited-state Q$\bar{\rm Q}$ potentials as well as the ground-state potential. Remarkably, in spite of the excitation phenomenon in QCD, we find Abelian dominance for the first gluonic-excitation energy of about 1 GeV at long distances in the maximally Abelian gauge. On the other hand, no Abelian dominance is observed for higher gluonic-excitation energies even at long distances. This suggests that there is some threshold between 1 and 2 GeV for the applicable excitation-energy region of Abelian dominance. Also, we find that Abelian projection significantly reduces the short-distance $1/r$-like behavior in gluonic-excitation energies.
