Precise mass-dependent QED contributions to leptonic g-2 at order α2 and α3

被引：77

作者：

Passera, M. ^{[1
]}

机构：

[1] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy

[2] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

来源：

PHYSICAL REVIEW D | 2007年 / 75卷 / 01期

关键词：

ANOMALOUS MAGNETIC-MOMENT; VACUUM POLARIZATION INSERTIONS; STANDARD MODEL PREDICTION; ELECTRON G-2; HARMONIC POLYLOGARITHMS; MUON G-2; HADRONIC CONTRIBUTIONS; RENORMALIZATION-GROUP; NUMERICAL EVALUATION; GRAPHS CONTRIBUTION;

D O I：

10.1103/PhysRevD.75.013002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

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页数：6

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