Search for Heavy Right-handed Quarks in the Electron-Muon+X channel at CDF

We present a search for new, heavy objects, produced in $\rm{p\bar{p}}$
collisions at $\sqrt{s}$ = 1.96 TeV, in the electron-muon channel at CDF
using 925 $pb^{-1}$ of data. To probe the reach of the search, we set a
cross section limit on a 300 GeV right handed down type quark predicted by
Bjorken, Pakvasa and Tuan.