Abstract
We present results of tests of the standard model of electroweak interactions from the AMY, TOPAZ and VENUS detectors at TRISTAN operating at centre of mass energies up to 60.8 GeV. Measured asymmetries in e+e− → μ+μ−, τ+μ− and bb are consistent with the standard model. The hadronic event rate is higher than expected for Mz = 92 GeV/c2, but is consistent with the standard model with Mz = 88.5 GeV/c2, sin2Θw = 0.234, and ΛMS = 0.15 GeV.
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