Search for the Higgs Boson in the WH → lνbb and WH → WWW → lνjjjj Channels

Throughout the summer of 2011, work continued on the analysis of the associated pr oduction of the Higgs boson. Our particular analysis was the WH → lνbb decay channel. This channel has the highest branching ratio of the low-mass Higgs decay channels and thus is one of the most sensitive channels to analyze, resulting in a solid framework and a good foundation. W ork was also done on the WH → WWW → lνjjjj decay channel. This channel is unique within DO because there are only a few people working on it, all whom are summer students. This pa per explains ongoing efforts to process data and Monte Carlo (MC) samples, model data c orrectly, and utilize the output of multivariate training to effectively distinguish between signal and background events and perform a search for the Higgs Boson. It also discusses new variables that were added to the search and how they impacted the overall analysis.