论文标题
可观察到的中间窗口可用于从o $ $（a）$改进的Wilson Quarks的Hadronic真空两极化贡献
Intermediate window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from O$(a)$ improved Wilson quarks
论文作者
论文摘要
在发布了MUON异常磁矩的新测量之后，实验与$ G-2 $理论计划的理论预测之间的差异增加到$ 4.2 \，σ$。最近的晶格QCD计算预测了大于数据驱动估计值的HADRONIC真空极化贡献的值，从而使标准模型预测更接近实验测量。在时间摩托车代表中，对MUON $ G-2 $贡献的欧几里得时窗可以帮助阐明现象学和晶格预测之间的差异。我们使用$ n_ \ mathrm {f} = 2+1 $ o $ $（a）$改进的威尔逊夸克（Wilson Quarks）对中间距离窗口的贡献进行计算。我们在$ 0.1 \ $ 0.1 \ $ fm的六个晶格间距上采用合奏，而Pion质量则降至物理价值。我们使用矢量电流和两组独立的改进系数的两种离散化介绍了连续限制的详细研究。我们在物理点的结果显示了$ 3.9 \，σ$的张力，并根据数据驱动的方法对中间窗口进行了最新评估。
Following the publication of the new measurement of the anomalous magnetic moment of the muon, the discrepancy between experiment and the theory prediction from the $g-2$ theory initiative has increased to $4.2\,σ$. Recent lattice QCD calculations predict values for the hadronic vacuum polarization contribution that are larger than the data-driven estimates, bringing the Standard Model prediction closer to the experimental measurement. Euclidean time windows in the time-momentum representation of the hadronic vacuum polarization contribution to the muon $g-2$ can help clarify the discrepancy between the phenomenological and lattice predictions. We present our calculation of the intermediate distance window contribution using $N_\mathrm{f}=2+1$ flavors of O$(a)$ improved Wilson quarks. We employ ensembles at six lattice spacings below $0.1\,$fm and pion masses down to the physical value. We present a detailed study of the continuum limit, using two discretizations of the vector current and two independent sets of improvement coefficients. Our result at the physical point displays a tension of $3.9\,σ$ with a recent evaluation of the intermediate window based on the data-driven method.
