A search for a heavy Standard Model Higgs boson decaying via $H \to ZZ \to l^+l^-q\bar{q}$, where $l=e$ or $\mu$, is presented. The search uses a data set of pp collisions at $\sqrt{s}$ = 7 TeV, corresponding to an integrated luminosity of 4.7 fb$^{-1}$ collected in 2011 by the ATLAS detector at the CERN LHC. No significant excess of events above the estimated background is found. Upper limits at 95% confidence level on the production cross section of a Higgs boson with a mass in the range between 200 and 600 GeV are derived. A Standard Model Higgs boson with a mass in the range 300 $\le m_H \le$ 322 GeV or 353 $\le m_H \le$ 410 GeV is excluded at 95% CL. The corresponding expected exclusion range is 351 $\le m_H \le$ 404 GeV at 95% CL.

Log in to your administrator account to edit.