论文标题
QED中的高精度四环质量和波函数重新归一化
High-precision four-loop mass and wave function renormalization in QED
论文作者
论文摘要
4循环质量质量和波函数重新归一化常数$ z_2 $和$ z_m $已在壳上减法方案中评估，精度为1100位。我们还确定了可以从类似QED的图表获得的QCD重归化常量$ z_2^{OS} $和$ z_m^{OS} $的五个颜色结构的系数。结果与文献中可用的较低的精度结果一致。还获得了所有这些数量的分析拟合。
The 4-loop QED mass and wave function renormalization constants $Z_2$ and $Z_m$ have been evaluated in the on-shell subtraction scheme with 1100 digits of precision. We also worked out the coefficients of the five color structures of the QCD renormalization constants $Z_2^{OS}$ and $Z_m^{OS}$ which can obtained from QED-like diagrams. The results agree with lower precision results available in the literature. Analytical fits were also obtained for all these quantities.
