Abstract
We report experimental results on the cross section for the reaction e + e − → hadrons as a function of the total c.m. energy in the range W = 1.42–3.09 GeV. The results, combined with those already existing below the charm threshold, clearly indicate a structure for R( W) = α( e + e − → hadrons)/ α( e + e − → μ + μ −) in that energy region.
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