Abstract
The forward-backward asymmetry in e +e − annihilation induced by neutral currents allows an effective particle-antiparticle separation. This is used to define a simple CP violating observable. At the Z o resonance, where th production rates are high, polarized electrons may increase the forward-backward asymmetries by up to a factor six. The number of events necessary to establish a CP-violating effect with neutral B mesons is reduced by about an order of magnitude compared with the usual lepton tag method.
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