Can VMD improve the estimate of the muon g-2?

被引：0
|
作者：
M.Benayoun [1 ]
L.Del Buono [1 ]
B.P.David [1 ]
O.Leitner [1 ]
机构：
[1] LPNHE des Universits Paris VI et VII
来源：
中国物理C | 2010年 / 34卷 / 06期
关键词：
VMD; isospin symmetry breaking; g-2;
D O I：
暂无
中图分类号：
O572.33 [介子];
学科分类号：
摘要：
We show that a VMD based theoretical input allows for a significantly improved accuracy for the hadronic vacuum polarization of the photon which contributes to the theoretical estimate of the muon g-2.We also show that the only experimental piece of information in the τ decay which cannot be accounted for within this VMD framework is the accepted value for Br(τ→ππντ),while the τ spectum lineshape is in agreement with expectations from e+e-annihilations.
引用
收藏
页码：698 / 704
页数：7
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