论文标题
QCD光谱总和规则2022
QCD spectral sum rules 2022
论文作者
论文摘要
我们对QCD光谱总和规则的状态进行了紧凑的审查，直到2022年。我们强调了确定QCD输入参数的最新进展（$α_s$，运行夸克群体，夸克和gluon冷凝物），在该参数已考虑其相关性。简要审查并评论了一些选择的总和规则（灯光和重型夸克，Gluonia/Geballs，Hybrids和Four-Quark State）中的总和规则的一些现象学用途。修订了$ 1^{ - +} $的$ 1^{ - +} $的估计，该质量确认了$π_1（1600）$的混合性质，而不是$π_1（2050）$。
We present a compact review of the status of QCD spectral sum rules until 2022. We emphasize the recent progresses for determining the QCD input parameters ($α_s$, running quark masses, quark and gluon condensates) where their correlations have been taken into account. Some selected phenomenological uses of the sum rules in different channels (light and heavy quarks, gluonia/glueballs, hybrids and four-quark states) are briefly reviewed and commented. The estimate of the $1^{-+}$ light hybrid mass is revised which confirms the hybrid nature of the $π_1(1600)$ but not the $π_1(2050)$.
