Probing a Very Narrow Z' Boson with CDF and D0 Data

The CDF and D0 data of nearly 475pb^-1 in the dilepton channel is used to probe a recent class of models, Stueckelberg extensions of the standard model (StSM), which predict a Z^' boson whose mass is of topological origin with a very narrow decay width. A Drell-Yan analysis for dilepton production via this Z^' shows that the current data put constraints on the parameter space of the StSM. With a total integrated luminosity of 8fb^-1, the very narrow Z^' can be discovered up to a mass of about 600 GeV. The StSM Z^' will be very distinct since it can occur in the region where a Randall-Sundrum graviton is excluded.