Search for $W'$ Production at CDF

We present results from a search for $W'$ production in 1 $fb^{-1}$ of $p\overline{p}$ data from the CDF-II detector at the Tevatron. Many standard model extensions involve additional gauge bosons. A new heavy charged boson with standard model-like couplings ($W'$) would decay prominently to $t\overline{b}$. We search for the semi-leptonic final state of this decay in events with a high transverse momentum lepton, large missing transverse energy, and two or three high transverse momentum jets, where one of the jets contains a secondary vertex consistent with the fragmentation of a $b$ parton. Kinematic discriminants are used to observe or exclude a $W'$-like resonance in the mass range from 400 to 950 $GeV/c^{2}$.