Z' effects and anomalous gauge couplings at LC with polarization

Abstract

We show that the availability of longitudinally polarized electron beams at a 500 GeV Linear Collider would allow, from an analysis of the reaction e^+e^-\to W^+W^-, to set stringent bounds on the couplings of a Z' of the most general type. In addition, to some extent, it would be possible to disentangle observable effects of the Z' from analogous ones due to competitor models with anomalous trilinear gauge couplings.

22 pages LaTex, 6 figures available on request, revised version accepted for publication in Int. J. Mod. Phys. A

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