We give compact and explicit formulae for the corrections of asymmetry measurements on the Z0 peak induced by vacuum polarization due to supersymmetric particles. We investigate their magnitudes in realistic minimal models based on supergravity and inspired by the superstring. We find that the corrections to the forward-backward asymmetry are unobservably small, whilst corrections to the left-right polarization asymmetry are observable if particles have masses in the range accessible to LEP 200.
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We would like to thank A. Blondel for drawing our attentionto the subject.O ne of us (S.R.) acknowledges the researchs upporta ffordedb y the US Departmento f Energy under contractN o DE-AC02-83ER40105a nd by a PresidentiaYl oung InvestigatoAr ward supplementebdy a grant from the Exxon Education Formation.