Can Soft Glljon Effects Be Measured in Electron - Positron Annihilation ? *

The energy-energy correlation at large angles in +e e annihilation is calculated byresumming soft gluon contributions through two-loop level. The result is compared with experimental data. No agreement is obtained using a purely perturbative analysis. The relevance of nonperturbative effects at present energies is emphasized. (Submitted to Progress of Theoretical Physics Letters) * Work supported in part by the Department of Energy, contract number DE-AC03-76SF00515. t Work supported by the Japan Society for the Promotion of Science through the Joint Japan-U.S. Collaboration in High Energy Physics. tt Address after July 1, 1982: Division of Natural Science, Graduate School at Kobe University, Kobe, Japan. § Work supported in part by the NSF grant number NSF PHY 78-26847. ll Address after September 1982: Istituto di Fisica, dell'universita Par-ma, Italy.