Radiative corrections to Bhabha scattering in SU(2) X U(1)

We present the results of an accurate investigation of the electromagnetic and weak radiative corrections to Bhabha scattering at PETRA/PEP energies and around the Z0 in the electroweak standard model. Using the on shell renormalization scheme with the electric charge and the boson and fermion masses as renormalized parameters we find that the photonic corrections to the γ and Z0 exchange contributions are the most important ones at PETRA energies, on resonance, and in the radiative tail region above the Z0. The dominating weak correction is the Z0 self energy which gives visible effects around the resonance. (orig.)