论文标题
在高温下提高了QCD拓扑的重新加权
Improved Reweighting for QCD Topology at High Temperature
论文作者
论文摘要
在上一篇论文\ cite {jahn：2018dke}中，我们提出了一种计算QCD在小且标准方法失败的QCD拓扑敏感性的方法。在这里，我们通过消除了拓扑领域之间的重量级方法的两个障碍来改进这种方法。我们提出了高统计量，连续淘汰的结果，纯glue QCD的敏感性高达$ 7 t_c $。我们表明，易感性随温度而变化为$ t^{ - 6.7 \ pm 0.3} $介于$ t = 2.5 t_c $和$ t = 7 t_c $之间，与基于稀释的Instanton Gas近似的期望非常吻合。
In a previous paper \cite{Jahn:2018dke} we presented a methodology for computing the topological susceptibility of QCD at temperatures where it is small and standard methods fail. Here we improve on this methodology by removing two barriers to the reweighting method's moving between topological sectors. We present high-statistics, continuum-extrapolated results for the susceptibility of pure-glue QCD up to $7 T_c$. We show that the susceptibility varies with temperature as $T^{-6.7\pm 0.3}$ between $T=2.5 T_c$ and $T=7 T_c$, in good agreement with expectations based on the dilute instanton gas approximation.
