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Determination of the strong coupling constant from the CLEO measurement of the total hadronic cross section in $e^+e^-$ annihilation below 10.56 GeV
Using recent CLEO III results for the cross section for $e^+e^- \to {\rm hadrons}$ at seven centre-of-mass energies between 6.964 and 10.538 GeV, we derive a value for the strong coupling constant $\alpha_s(M_Z^2)=0.110_{-0.012}^{-0.010}{}_{-0.011}^{+0.010}$ where the uncertainties are uncorrelated...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
2007
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.76.074003 http://cds.cern.ch/record/1047621 |