Wednesday 26 September Speaker: Sam Harper (RAL) Title: Search for New Physics in Electron-Positron Events at CDF Abstract: The electron-positron final state at a hadron collider has a strong discovery potential. Models such as Warped Extra Dimensions and various GUT models can all appear as a narrow resonances in the electron positron mass spectrum. We present a model independent search for such resonances in the e+e- mass spectrum resulting from 1.96 TeV ppbar events recorded by the CDF II detector at the Fermilab Tevatron. We also present the worlds best exclusion limits on the Randall-Sundrum graviton and the E6 Z's.