论文标题

计算QED校正到晶格上的Hadronic真空极化

Calculating the QED correction to the hadronic vacuum polarisation on the lattice

论文作者

Ray, Gaurav, Bazavov, Alexei, Davies, Christine, DeTar, Carleton, El-Khadra, Aida, Gottlieb, Steven, Hatton, Daniel, Jeong, Hwancheol, Kronfeld, Andreas, Lahert, Shaun, Lepage, Peter, McNeile, Craig, Simone, James, Avilés-Casco, Alejandro Vaquero

论文摘要

需要对MUON的异常磁矩的强子真空极化成分进行破坏的校正,以确保$G_μ-2$的理论精度低于实验精度。我们使用晶格QCD描述了我们的工作计算的状态,该QED校正对dashen方案中的光和奇怪连接的辐射真空极化。我们使用物理$ N_F = 2+1+1 $ HISQ集合在三个晶格间距和三个较重的价值夸克质量上报告结果。

Isospin-breaking corrections to the hadron vacuum polarization component of the anomalous magnetic moment of the muon are needed to ensure the theoretical precision of $g_μ-2$ is below the experimental precision. We describe the status of our work calculating, using lattice QCD, the QED correction to the light and strange connected hadronic vacuum polarization in a Dashen scheme. We report results using physical $N_f=2+1+1$ HISQ ensembles at three lattice spacings and three heavier-than-light valence quark masses.

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