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Pis'ma v Zh. Èksper. Teoret. Fiz., 2003, Volume 77, Issue 11, Pages 728–730 (Mi jetpl2830)  

Refinement of the hadronic contribution to the muon anomalous magnetic moment and to $\mathbf{\alpha(M^2_z)}$

B. V. Geshkenbein

Institute for Theoretical and Experimental Physics (Russian Federation State Scientific Center), Moscow

Abstract: The contribution of the muon anomalous magnetic moment $a_{\mu}(hadr)$ o the vacuum polarization and electro-magnetic coupling constant $\alpha(q^2)$ for $q^2 = M^2_z$ is refined by using a new, more accurate value of the $\rho$-meson width. The values $a_{\mu}(hadr) = 678(7)\cdot10^{-10}$ and $\delta \alpha_{hadr}(M^2_z) = 0.02786 (6)$ were obtained in a QCD model with an infinite number of vector mesons.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2003, 77:11, 603–605

PACS: 14.60.Ef
Received: 16.04.2003
Revised: 29.04.2003

Citation: B. V. Geshkenbein, “Refinement of the hadronic contribution to the muon anomalous magnetic moment and to $\mathbf{\alpha(M^2_z)}$”, Pis'ma v Zh. Èksper. Teoret. Fiz., 77:11 (2003), 728–730; JETP Letters, 77:11 (2003), 603–605

Citation in format AMSBIB
\Bibitem{Ges03}
\by B.~V.~Geshkenbein
\paper Refinement of the hadronic contribution to the muon anomalous magnetic moment and to $\mathbf{\alpha(M^2_z)}$
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2003
\vol 77
\issue 11
\pages 728--730
\mathnet{http://mi.mathnet.ru/jetpl2830}
\transl
\jour JETP Letters
\yr 2003
\vol 77
\issue 11
\pages 603--605
\crossref{https://doi.org/10.1134/1.1600814}
\scopus{http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-9144262602}


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