Exotic searches at LEP

Abstract

In the last five years, the operation of the LEP accelerator has provided the HEP community with a unique opportunity to search for physics beyond the standard model at the typical energy scale of $~200$ GeV. Although most of the data analysis has been focused on the traditional sectors of Higgs and gravity-mediated SUSY physics, a considerable effort has been dedicated by ALEPH, DELPHI L3 and OPAL to the search for more exotic physics scenarios, which go from gauge-mediated supersymmetry breaking, to compositeness, to gravitational extra-dimensions. This talk reviews the latest experimental results on a selection of final states which are believed to be of particular interest for exotic physics or which present some anomaly in the data with respect to standard model expectations.