Search for Associated Production of W and Higgs Bosons in $\ell\nu b\bar{b}$ Final States

We present preliminary results of a search for the Higgs boson through its associated production with W for masses between 105 and 155 GeV in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV. The search is performed in events containing one lepton (electron or muon), an imbalance in the transverse energy, and two b-tagged jets in 1.0 fb$^{-1}$ of integrated luminosity accumulated by the D0 experiment at Fermilab.