Search for Technicolor Particles Produced in Association with a W Boson at CDF

We present a search for the technicolor particles ($\rho_{T} \to \pi_{T} + W$) decaying to $b\bar{b}$ and in association with W boson in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV. A dataset corresponding to an integrated luminosity of 1.9fb$^{-1}$ is used in this analysis. Selected events have one high-$p_{T}$ electron or muon, missing $E_{T}$ and two b-jets. In order to improve the sensitivity we make use of b-tagging techniques to identify and categorized events with one or two b-tagged jets. We set a 95\% confidence level upper limit on the production cross section times branching ratio as a function of the mass of the technicolor particles involved in the interaction.