Single-leptoquark production inZdecays

The possibility of observing leptoquarks which manifest themselves as rare decay modes of the $Z$ is examined in a wide variety of models. At a $Z$ factory, with $\gtrsim {10}^{7}Z\text{'}\mathrm{s}$, a significant signal for the production and decay of such particles can be obtained for masses as large as ≃80 GeV in some models.