A Measurement of the Total Cross Section for $e^{+}{e}^{-}\to hadrons$ at $\sqrt{s}$=10.52 GeV

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 alpha_s(10.52 GeV)=0.20+/-0.01+/-0.06, or alpha_s(M_Z)=0.13+/-0.005+/-0.03.

15 page postscript file, postscript file also available through http://w4.lns.cornell.edu/public/CLNS

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