The Minimal Quark-Lepton Symmetry Model and the Limit on Z'-mass

Details The Minimal Quark-Lepton Symmetry Model and the Limit on Z'-mass The Minimal Quark-Lepton Symmetry Model and the Limit on Z'-mass

1995-03-06

arxiv.org/abs/hep-ph/9503239v1

Phys.Lett.B346:297-302,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, LaTeX, 1 figure available on request; to be published in Phys. Lett. B

Scientific paper

10.1016/0370-2693(95)00015-D

A minimal extension of the Standard Model containing the four-color quark-lepton symmetry is proposed and discussed. The existence of a rather light extra $Z'$-boson originated from the four-color quark-lepton symmetry is shown to be compatible with the current electroweak data. The cross sections $\sigma(e^+ e^- \rightarrow \gamma, Z, Z' \rightarrow \bar f f)$ are calculated, and their deviations from the SM predictions are shown to be significant at $\sqrt s \ge 200 GeV$ and available for the measurements at the LEP200 and future colliders.

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