Differentiating various extra $Z^{\prime}$'s at Future Colliders

Details Differentiating various extra $Z^{\prime}$'s at Future Colliders Differentiating various extra $Z^{\prime}$'s at Future Colliders

1992-12-14

arxiv.org/abs/hep-ph/9212259v1

Mod.Phys.Lett. A8 (1993) 771-776

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

We propose a way to differentiate between various extra $U(1)$ models using flavor tagging in the decay modes $Z^{\prime}\rightarrow q{\bar{q}}$ once the extra $Z^{\prime}$ is observed at future colliders in the lepton channel. A generalization of the R parameter, namely, one for charge $\frac{1}{3}$ and one for charge $\frac{2}{3}$ quark gives a two parameter test for the various models. Flavor tagging eliminates the uncertainty because of extra fermions and can reduce the QCD background at SSC/LHC dramatically. For $E_{6}$ and $SO(10)$ based models the former is always 3. This seems to be a very good way to eliminate certain models.

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