Revised value of the eighth-order contribution to the electron g-2

被引：106

作者：

Aoyama, T. ^{[1
]}

Hayakawa, M.

Kinoshita, T.

Nio, M.

机构：

[1] RIKEN, Nishina Ctr, Phys Theor Lab, Wako, Saitama 35101, Japan

[2] Nagoya Univ, Dept Phys, Nagoya, Aichi 464, Japan

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

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.99.110406

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The contribution to the eighth-order anomalous magnetic moment (g-2) of the electron from a set of diagrams without closed lepton loops is recalculated using a new FORTRAN code generated by an automatic code generator. Comparing the contributions of individual diagrams of old and new calculations, we find an inconsistency in the old treatment of IR subtraction terms in two diagrams. Correcting this error leads to the revised value -1.9144(35)(alpha/pi)(4) for the eighth-order term. This theoretical change induces the shift of the inverse of the fine structure constant by -6.411 80(73)x10(-7).

引用

页数：4

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