I review recent estimates of the non-perturbative hadronic vacuum polarization contributions. Since these at present can only be evaluated in terms of experimental data of limited precision, the related uncertainties pose a serious limitation in our ability to make precise predictions. Besides e+e-
Hadronic contributions to aμ and α(Mz)
✍ Scribed by Thomas Teubner
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 701 KB
- Volume
- 131
- Category
- Article
- ISSN
- 0920-5632
No coin nor oath required. For personal study only.
✦ Synopsis
We calculate the anomalous magnetic moment of the muon and the electromagnetic coupling at scale Mz by improving the determination of the hadronic contributions and their errors via a careful, e+e -data driven analysis.
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