Tenth-Order QED Contribution to the Electron g-2 and an Improved Value of the Fine Structure Constant

被引：255

作者：

Aoyama, Tatsumi ^{[1
,2
]}

Hayakawa, Masashi ^{[2
,3
]}

Kinoshita, Toichiro ^{[2
,4
]}

Nio, Makiko ^{[2
]}

机构：

[1] Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Univers, Nagoya, Aichi 4648602, Japan

[2] RIKEN, Nishina Ctr, Wako, Saitama 3510198, Japan

[3] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan

[4] Cornell Univ, Lab Elementary Particle Phys, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 11期

基金：

美国国家科学基金会;

关键词：

ANOMALOUS MAGNETIC-MOMENT; VACUUM POLARIZATION INSERTIONS; AUTOMATED CALCULATION SCHEME; ALPHA(N) CONTRIBUTIONS; LEPTON LOOPS; MUON G-2; GRAPHS; DIAGRAMS;

D O I：

10.1103/PhysRevLett.109.111807

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This Letter presents the complete QED contribution to the electron g - 2 up to the tenth order. With the help of the automatic code generator, we evaluate all 12 672 diagrams of the tenth-order diagrams and obtain 9.16 (58)(alpha/pi)(5). We also improve the eighth-order contribution obtaining -1.9097 (20)(alpha/pi)(4), which includes the mass-dependent contributions. These results lead to a(e)(theory) = 1 159 652 181.78(77) X (10)(-12). The improved value of the fine-structure constant alpha(-1) = 137.035 999 173 (35) [0.25 ppb] is also derived from the theory and measurement of a(e).

引用

页数：4

共 43 条

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PHYSICAL REVIEW D, 2012, 85 (09)

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