ALL ELECTROWEAK 4-FERMION PROCESSES IN ELECTRON-POSITRON COLLISIONS

This paper studies the electroweak production of all possible four-fermion states in e(+)e(-) collisions. Since the methods employed to evaluate the complete matrix elements and phase space are very general, all four-fermion final states in which the charged particles are detected can be considered. Also all kinds of experimental cuts can be imposed. With the help of the constructed event generator a large number of illustrative results is obtained, which show the relevance of backgrounds to a number of signals. For LEP 200 the W-pair signal and its background are discussed, for higher energies also Z-pair and single W and Z signals and backgrounds are presented.