A Measurement of the Total Cross Section for e+e- hadrons at s=10.52 GeV
CLEO Collaboration, R. Ammar et al
Abstract
Using the CLEO detector at the Cornell Electron Storage Ring, we have made a measurement of R=sigma(e+e- ->hadrons)/sigma(e+e- ->mu+mu-) =3.56+/-0.01+/-0.07 at ECM=10.52 GeV. This implies a value for the strong coupling constant of alphas(10.52 GeV)=0.20+/-0.01+/-0.06, or alphas(MZ)=0.13+/-0.005+/-0.03.
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