LEPTOQUARK SEARCHES AT HERA AND THE TEVATRON

An unexpected excess of events with high Q² reported by the H1 and ZEUS collaborations at HERA in early 1997 provoked speculation that the production of first-generation leptoquarks had been observed. In this article we review the anomalous HERA events, give a brief summary of the motivation for leptoquarks, and discuss the most recent searches at HERA and the Tevatron for first-, second-, and third-generation leptoquarks as well as generation-changing leptoquarks. We conclude with a short discussion of future prospects for leptoquark searches.