Model-independent determination of $Z'$ couplings at LEP 200

Details Model-independent determination of $Z'$ couplings at LEP 200 Model-independent determination of $Z'$ couplings at LEP 200

1994-05-16

arxiv.org/abs/hep-ph/9405302v1

Nucl.Phys.Proc.Suppl.37B:177-180,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, UG-FT-36/94. PostScript file for the Figure available via anonymous ftp at ftp.ugr.es as incoming/mzpsm.ps

Scientific paper

10.1016/0920-5632(94)90674-2

All couplings of a new heavy gauge boson to ordinary fermions can be determined in a model-independent way at a large $e^+e^-$ collider for large enough statistics. No such determination is possible at LEP 200, however, because its design integrated luminosity is too low for existing and forthcoming limits on $Z'$ interactions. At any rate, it should be possible to distinguish between models for $Z'$ masses $< 1\ TeV$, or to set limits of this order on $Z'$ masses for definite models. These are (preliminary) $1\sigma $ limits. We neglect systematic errors and assume an integrated luminosity of $0.5\ fb^{-1}$.

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