Constraints on Z' from W^+W^- production at the NLC with polarized beams

Abstract

We discuss the potential of NLC500 and NLC1000 to probe Z-Z' mixing and mass by the reaction e^+e^- -> W^+W^- with longitudinally polarized electrons. We perform a model-independent analysis of the deviations from the Standard Model, and apply it to a specific class of extended weak gauge models. Results indicate that the corresponding bounds at the NLC500 complement the present ones obtained from LEP1, and rapidly become quite stringent at the higher energy of the NLC1000. Also, we emphasize the importance of initial beam polarization in improving the sensitivity to mixing.

15 pages Latex, 8 figures available on request from [email protected]

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• Leptophobic U(1)'s and the R_b - R_c Crisis
• Reconstruction of the Extended Gauge Structure from $Z^{\prime }$ Observables at Future Colliders
• Determination of $Z^{\prime }$ Gauge Couplings to Quarks and Leptons at Future Hadron Colliders
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• Role of beam polarization in the determination of $WW\gamma$ and $WWZ$ couplings from $e^{+}{e}^{-}\to W^{+}{W}^{-}$

Cited by in corpus (3)

• The Phenomenology of Extra Neutral Gauge Bosons
• Z' Phenomenology and the LHC
• Signals of additional Z boson in e+e-\to W+W^- at the ILC with polarized beams