Fine-structure constant obtained from an improved calculation of the electron g-2

被引：35

作者：

Kinoshita, T

机构：

[1] Newman Laboratory, Cornell University, Ithaca

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1997年 / 46卷 / 02期

基金：

美国国家科学基金会;

关键词：

electron moment anomaly; fine-structure constant quantum electrodynamics;

D O I：

10.1109/19.571785

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A preliminary result is presented for an accurate determination of the fine-structure constant alpha based on an improved evaluation of the sixth- and eighth-order radiative corrections to the electron anomalous magnetic moment a(epsilon). In combination with a very precise measurement of a(epsilon), this leads to the most accurate value of alpha obtained thus far, with a relative standard uncertainty of less than 4 x 10(-9).

引用

页码：108 / 111

页数：4

共 19 条

[11] THE ANALYTICAL CONTRIBUTION OF THE 6TH-ORDER GRAPHS WITH VACUUM POLARIZATION INSERTIONS TO THE MUON (G-2) IN QED [J].