Hadronic light-by-light scattering contribution to the muon g - 2: An effective field theory approach

被引：0

作者：

Knecht, M. ^{[1
]}

Nyffeler, A. ^{[1
]}

Perrottet, M. ^{[1
]}

De Rafael, E. ^{[1
]}

机构：

[1] Centre de Physique Theáorique, CNRS-Luminy, Case 907, F-13288 Marseille Cedex 9, France

来源：

Physical Review Letters | 2002年 / 88卷 / 07期

关键词：

Equations of motion - Light scattering - Magnetic moments - Perturbation techniques - Wave equations;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

An effective low energy field theory approach was used to discuss the hadronic light-by-light scattering contribution to aμ, the anomalous magnetic moment of the muon. The coefficient of the leading logarithm arising from the two-loop graphs involving two anomalous vertices was computed. The coefficient of leading logarithm was found to be positive and corresponded to a positive sign for the pion-pole contribution to hadronic light-by-light correction to aμ.

引用

页码：718021 / 718024