Electroweak 0 (α) corrections to W+W− pair production in polarized γγ collisions Original Research Article

Full 0 (α) electroweak corrections for γγ → W+W− are calculated including virtual corrections, soft and hard real photon and Z-boson emission. The corrections are quite large ranging from −2.5% at 500 GeV to −18% at 2 TeV, | cos θ±| < cos(10°). Contributions from real photon and Z-boson emission are important at high energies where they partly cancel large negative contributions originating from virtual bosonic corrections. Precision measurements that intend to uncover physics beyond the standard model must necessarily make use of the full standard model predictions including O (α) corrections.