Precise mass-dependent QED contributions to leptonic g-2 at order alpha^2 and alpha^3
Precise mass-dependent QED contributions to leptonic g-2 at order alpha^2 and alpha^3
复制标题
精确的质量相关 QED 对轻子 g-2 的 α^2 和 α^3 阶贡献
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
M. Passera
中科院分区：
文献类型：
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作者：
M. Passera
改进值的两个和三个回路的质量依赖QED的贡献的异常磁矩的电子，μ子，和τ轻子。标准模型预测的电子（g-2）进行比较，其最精确的最近的测量，提供一个值的精细结构常数与最近公布的测定。对于τ轻子，与以前发表的结果的差异被发现和讨论。精细结构常数的更新值见“出版后添加的注释”。"
Improved values for the two- and three-loop mass-dependent QED contributions to the anomalous magnetic moments of the electron, muon, and tau lepton are presented. The Standard Model prediction for the electron (g-2) is compared with its most precise recent measurement, providing a value of the fine-structure constant in agreement with a recently published determination. For the tau lepton, differences with previously published results are found and discussed. An updated value of the fine-structure constant is presented in "Note added after publication."