Theoretical precision in estimates of th
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F. Jegerlehner
📂
Article
📅
2004
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Elsevier Science
🌐
English
⚖ 930 KB
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-