Hadronic light-by-light scattering contribution to the muon g-2

被引：2
|
作者：
Nyffeler, A [1 ]
机构：
[1] CNRS, Ctr Phys Theor, F-13288 Marseille 9, France
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2003年 / 121卷
关键词：
D O I：
10.1016/S0920-5632(03)01843-7
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We briefly review the current status of the hadronic light-by-light scattering correction to the muon g - 2. Then we present our semi-analytical evaluation of the pion-pole contribution, using a description of the pion-photon-photon form factor based on large-N-C and short-distance properties of QCD. We also sketch in effective field theory approach to hadronic light-by-light scattering. In view of several still unsolved problems, our conservative estimate for the full hadronic light-by-fight scattering contribution is a(mu)(LbyB;had) = +8 (4) x 10(-10).
引用
收藏
页码：187 / 190
页数：4
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