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On the phenomenology of a Z' coupling only to third-family fermions

A. A. Andrianov, P. Osland, A. A. Pankov, N. V. Romanenko, J. Sirkka

hep-pharXiv:hep-ph/9804389

Abstract

The phenomenology of an additional U(1) neutral gauge boson Z' coupled to the third family of fermions is discussed. One might expect such a particle to contribute to processes where taus, b and t quarks are produced. Precision data from LEP1 put severe constraints on the mixing and heavy-boson mass. We find that the effects of such a particle could not be observed at hadronic colliders, be it at the Tevatron or the LHC, because of the QCD background. At LEP2 and future e+e- linear colliders, one could instead hope to observe such effects, in particular for b b final states.

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