Optimal observables for measuring three-gauge-boson couplings in $e^{+}{e}^{-}\to W^{+}{W}^{-}$

Abstract

Observables with optimised sensitivity to the $WWZ$ and $WW\gamma$-couplings in $e^{+}{e}^{-}\to W^{+}{W}^{-}$ are investigated. They allow for separate studies of CP violation and of absorptive parts in the amplitude. We have calculated expected statistical errors on extracted couplings at $\sqrt{s}=500GeV$, with unpolarised or longitudinally polarised beams.

Comments: 4 pages, Talk given at the Workshop on Physics with $e^{+}{e}^{-}$ Linear Colliders, Gran Sasso, Italy, 2-3 June 1995, to appear in the proceedings