Using the CLEO III detector, we measure absolute cross sections for e+e-→hadrons at seven center-of-mass energies between 6.964 and 10.538 GeV. The values of R, the ratio of hadronic and muon pair production cross sections, are determined within 2% total root-mean-square uncertainty. © 2007 The American Physical Society.
Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Hietala, J., Klein, T., … Shepherd, M. R. (2007). Measurement of the total hadronic cross section in e+e- annihilation below 10.56 GeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 76(7). https://doi.org/10.1103/PhysRevD.76.072008