Leptoquarks and the HERA High-Q2 Events

Abstract

The excess of high-Q2 events recently observed in deep-inelastic positron-proton scattering at HERA has refuelled speculations on physics beyond the standard model, in particular on low-mass leptoquark-type particles. We review the theoretical framework for leptoquark interactions, and their production and decay at HERA. Bounds on leptoquark masses and couplings, and implications on other experiments are also discussed.

18 pages, Latex, 5 postscript figures included, Talk presented by R. Rueckl at the Ringberg Workshop on Physics beyond the Standard Model, Beyond the Desert, June 8--14, 1997, Tegernsee, Germany