Skubic, Patrick L2019-04-272019-04-272013https://hdl.handle.net/11244/319249A search for the Standard Model Higgs boson decaying to two W bosons with the subsequent decay to a final state containing one lepton, one neutrino, and two (or three) jets ($H\rightarrow WW^{*}\rightarrow\ell\nujj$ where $\ell$ stands for electron or muon) is presented using 4.7~fb$^{-1}$ of data recorded by the ATLAS detector in 2011at center of mass energy $\sqrt{s} =$ 7~TeV. No significant excess is observed over the expected Standard Model background.Limits on the Higgs production cross section are derived for masses between $\mH$ = 300 GeV and $\mH$ = 600 GeV. For a Higgsboson mass $\mH$ = 400~GeV, the 95\% confidence level upper bound on the cross-section for Higgs boson production by gluon fusion times thebranching ratio for $H\rightarrow WW^{*}$ is 2.2 pb, or approximately 1.9 times the Standard Model prediction.166 pagesapplication.pdfHiggs bosonstext