论文标题
电子磁矩的测量
Measurement of the Electron Magnetic Moment
论文作者
论文摘要
电子磁矩，$ - μ/μ_b= g/2 = 1.001 \，159 \，652 \，180 \，59 \，（13）\，[0.13 \，\ rm {ppt}] $，比固定在14年的价值高2.2倍。基本粒子测试的最精确确定的属性将标准模型（SM）的最精确预测至$ 1 $零件$ 10^{12} $。如果由于SM预测是$α$的函数，因此消除了良好结构常数$α$的不确定性的不确定性，该测试将改善数量级。新的测量和SM理论共同预测$α^{ - 1} = 137.035 \，999 \，166 \，（15）\，[0.11 \，\ rm {ppb}] $，不确定性比测量的$α$值之间的当前分歧小十倍。
The electron magnetic moment,$-μ/μ_B = g/2 = 1.001 \, 159 \, 652 \, 180 \, 59 \, (13) \, [0.13\, \rm{ppt}]$, is determined 2.2 times more accurately than the value that stood for 14 years. The most precisely determined property of an elementary particle tests the most precise prediction of the Standard Model (SM) to $1$ part in $10^{12}$. The test would improve an order of magnitude if the uncertainty from discrepant measurements of the fine structure constant $α$ is eliminated since the SM prediction is a function of $α$. The new measurement and SM theory together predict $α^{-1}=137.035 \, 999 \, 166 \, (15) \, [0.11 \, \rm{ppb}]$ with an uncertainty ten times smaller than the current disagreement between measured $α$ values.
