Radiative Corrections to Deep Inelastic Scattering in the Presence of an Additional Z' at LEP x LHC

The study of ep-scattering at LEP x LHC offers an interesting opportunity to search for additional heavy neutral gauge bosons. We study the influence of radiative corrections, especially of the potentially large QED contributions, to the expected cross sections. These corrections are typically of the same order as the effect searched for or even larger and have to be taken into account properly.