The more precise determination of hadronic contribution to muonic (g-2) factor and to alpha(M²_z)

2003/01/30 by B. V. Geshkenbein, Geshkenbein, B. V.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0301265

4 pages, latex

arxiv created 2003/04/16 · arxiv updated 2009/11/30

Abstract

The hadronic vacuum-polarization contribution to the muon anomalous magnetic moment a_mu(hadr) and to the value of the eleectromagnetic coupling constant at q² = M²_z are determined more precisely in connection with a new more exact value of the electronic width of rho-meson. The QCD model with infinite number of vector mesons is used. The more precisely determined results are: a_mu(hadr) = 678(7)*10^-10, δα_hadr(M²_z) = 0.02786(6).

Related

• Hadronic contribution to α(M_Z²) and the anomalous magnetic moment of the muon
• Hadronic contributions to the anomalous magnetic moment of the muon by QCD model with infinite number of vector mesons
• Status of the Hadronic Contribution to the Muon (g-2) Value
• The hadronic vacuum polarisation contributions to the muon g-2
• The hadronic vacuum polarization contribution to a_μ from full lattice QCD