Observability at LEP2 hadronic channels of a Z' with small lepton couplings

Abstract

We consider the effects of a number of models with one extra $Z$, with enhanced couplings to quarks, in the final \underline{hadronic} channels at LEP2. We show that, for a number of representative cases, visible effects could be produced even for very low values of the \underline{lepton} couplings, much smaller than the existing LEP1/SLC and the future LEP2 (lepton channel) bounds.

Comments: 13 pages and 9 figures e-mail: renard@lpmsun2.lpm.univ-montp2.fr