Abstract
A slight mismatch between the low and high energy [alpha][sub [ital s]] measurements has fueled speculation in recent times on the existence of light gluinos---a scenario not yet ruled out by direct experimental searches. We study the impact of light virtual gluinos ([similar to]3 GeV) on some electroweak observables measured at the CERN [ital e][sup +][ital e[minus]] collider LEP 1 with unprecedented precision. We conclude that squark masses in the range 50--60 GeV are disfavored by the present data with the above choice of gluino mass.
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