Refinement of the hadronic contribution to the muon anomalous magnetic moment and to α(Mz2)

被引：0
|
作者：
B. V. Geshkenbein
机构：
[1] Institute of Theoretical and Experimental Physics,
来源：
Journal of Experimental and Theoretical Physics Letters | 2003年 / 77卷
关键词：
14.60.Ef; 13.40.Em;
D O I：
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学科分类号：
摘要：
The contribution of the muon anomalous magnetic moment aμ(hadr) to the vacuum polarization and electro-magnetic coupling constant α(q2) for q2=Mz2 is refined by using a new, more accurate value of the ρ-meson width. The values aμ(hadr)=678(7)×10−10 and δα(Mz2=0.02786(6) were obtained in a QCD model with an infinite number of vector mesons.
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页码：603 / 605
页数：2
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