Gauge-Boson Production in Electron-Photon Collisions

We summarize results for the processes eγ → W−νe, e Z, eγ within the electroweak Standard Model. We discuss the essential features of the corresponding lowest-order cross-sections and present numerical results for the unpolarized cross-sections including the complete O(α) virtual, soft-photonic, and hard-photonic corrections. While at low energies the weak corrections are dominated by the leading universal corrections, at high energies we find large, non-universal corrections, which arise from vertex and box diagrams involving non-Abelian gauge couplings. CERN-TH.6980/93 August 1993 Contribution to the Proceedings of the Workshop on eeCollisions at 500GeV: The Physics Potential, Munich, Annecy, Hamburg, 20 November 1992 to 3 April 1993. Gauge-Boson Production in Electron-Photon Collisions A. Denner 1 and S. Dittmaier 2 1 Theory Division, CERN, Geneva, Switzerland 2 Physikalisches Institut, University of Würzburg, Germany