Search for a Higgs Boson in Decays to $WW^{*}$ at CDF

We present a search for Standard Model Higgs production in $p\overline{p}$ collisions at $\sqrt{s} =$~1.96~TeV using approximately 4~fb$^{-1}$ of data collected with the CDF~II detector. We consider the diboson decay channel, $H \rightarrow W W^{\*}$, which is the dominant decay mode for Higgs boson masses above 140~GeV/$c^{2}$. We further require both $W$ bosons to decay leptonically. Both single and associated Higgs production modes are considered. In order to maximize sensitivity, a combined Matrix Element method and Neural Network approach is utilized to distinguish signal from background processes. Cross-section limits are presented for Higgs mass hypothesis between 110~GeV/$c^{2}$ and 200~GeV/$c^{2}$.