ELECTROWEAK RADIATIVE-CORRECTIONS TO E+ E- -] HZ

The cross section for e+e- --> HZ with arbitrary lepton and Z-boson polarizations is calculated within the electroweak standard model including the complete O(alpha) virtual and soft photonic corrections. These were obtained using the computer-algebra packages FeynArts and FeynCalc. We list the relevant analytical results and discuss the influence of the weak radiative corrections on the unpolarized as well as the polarized cross sections. For LEP200 energies the weak radiative corrections amount to several per cent. For higher energies the corrections are usually of the same order for the total unpolarized cross section. However, for large values of the Higgs mass or for the suppressed cross section of transversely polarized Z-bosons they reach +30% and -40%, respectively. The differential cross section in the forward and backward directions gets even larger corrections for high energies, where the box diagrams constitute the dominant part of the radiative corrections.