Electroweak Precision Data and a Heavy Z'

Details Electroweak Precision Data and a Heavy Z' Electroweak Precision Data and a Heavy Z'

1995-04-26

arxiv.org/abs/hep-ph/9504417v2

Phys.Lett. B370 (1996) 135-140

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX file, includes postscript of two figures. Title changed in published version. Replaces previous version.

Scientific paper

10.1016/0370-2693(95)01559-0

We consider the physics of an extra $U(1)$ gauge boson $Z'$, which can mix with $Z$ through intermediate fermion loops. The loop contribution due to the heavy top quark significantly affects the low-energy observables, and for $m_{Z'}>m_Z$, one can always adjust the shifts in these observables to be in the right direction suggested by experiments, when we impose the anomaly cancellation conditions for $Z'$.

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