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Z' Search in e+e- Annihilation

A. Leike, S. Riemann

hep-pharXiv:hep-ph/9607306

Abstract

Expectations for constraints on extra Z bosons are derived for LEP 2 and future linear e+e- colliders. For typical GUTs, a Z' with MZ' 3 to 6 s may cause observable effects. The Z' discovery limits are dominated by statistical errors. However, if a Z' signal is observed, the discrimination between different models becomes much worse if systematic errors are taken into account. Discrimination between models is possible for MZ' < 3 s. A determination of Z' f f couplings independently of models becomes attractive with future colliders. Anticipated bounds are determined.

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