Model independent Z ′ constraints at future e + e − colliders
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Diagnostic power of future colliders for Z' couplings to quarks and leptons: e+e- versus pp colliders.
We study the diagnostic power of future e+e− colliders with √ s = 500 GeV (the New Large Collider (NLC)) for a model independent determination of the Z ′ gauge couplings to quarks and leptons. The interference of the Z ′ propagator with the photon and the Z propagator in the two-fermion final state probes are sensitive to the magnitude as well as relative signs of quark and lepton charges. For ...
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