Comment on $Z'$'s and the H1 and ZEUS High $Q^2$ Anomalies

Details Comment on $Z'$'s and the H1 and ZEUS High $Q^2$ Anomalies Comment on $Z'$'s and the H1 and ZEUS High $Q^2$ Anomalies

1997-04-22

arxiv.org/abs/hep-ph/9704380v1

Mod.Phys.Lett. A12 (1997) 1859-1863

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex file uses revtex version 3, epsfig, 1 postscript figure is attached

Scientific paper

10.1142/S0217732397001898

We investigate the effects of extra neutral gauge bosons on the high $Q^2$ region of the $e^+p \to e^+ X$ cross section at $\sqrt{s}=300$ GeV. We found that the only models with electroweak strength coupling, typical of extended gauge theories, that give a better fit to the H1 and ZEUS high $Q^2$ data than the standard model, are ruled out by existing data from the Tevatron. From general scaling arguments, using the allowed contact interactions, the only allowed models with $Z'$'s would be those with strong couplings although even in this case the statistical evidence is not compelling.

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