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

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作者
B. V. Geshkenbein
机构
[1] Institute of Theoretical and Experimental Physics,
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14.60.Ef; 13.40.Em;
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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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