论文标题
对欧几里得窗户的数据驱动评估,以审查HADRONIC真空极化
Data-driven evaluations of Euclidean windows to scrutinize hadronic vacuum polarization
论文作者
论文摘要
在本文中,我们讨论了如何使用欧几里得时间的窗口来隔离对lattice QCD中MUON的异常磁矩的评估之间的潜在冲突的起源(HVP),从$ e^+e^+e^+e^+e^ - to \ textrons {hastrons {hastrons} $ CrossSection $ CrossSection $ Crossection $ Crossection $ Crossection $ e^+e^+e^+e^+e^+e^+e^+e^+e^+e^+e^ - 我们提供了从$ e^+e^ - \至\ text {hadrons} $数据评估的现象学比较数字,用于lattice QCD中最常见的窗口数量,并与它们之间的相关性结合在一起。我们讨论并评估窗口参数的修改,这些参数可能在剖析HVP积分中张力的能量依赖性,并强调进一步的优化需要精确了解lattice-QCD计算中的完整协方差矩阵。
In this paper, we discuss how windows in Euclidean time can be used to isolate the origin of potential conflicts between evaluations of the hadronic-vacuum-polarization (HVP) contribution to the anomalous magnetic moment of the muon in lattice QCD and from $e^+e^-\to\text{hadrons}$ cross-section data. We provide phenomenological comparison numbers evaluated from $e^+e^-\to\text{hadrons}$ data for the window quantities most commonly studied in lattice QCD, complete with the correlations among them. We discuss and evaluate modifications of window parameters that could be useful in dissecting the energy dependence of tensions in the HVP integral and emphasize that further optimizations require a precise knowledge of the full covariance matrix in lattice-QCD calculations as well.