| This thesis presents a search for resonances in diboson production in the llqq final state using Lint = 20.3 fb --1 of proton-proton collision data collected at a center of mass energy of 8 TeV with the ATLAS detector. No significant excess over the Standard Model expectation is observed. Consequently 95% confidence level upper limits are set on the cross section times branching fraction for the production of bulk Randall-Sundrum gravitons and extended gauge model W' bosons, leading to the exclusion of masses below 740 GeV and 1590 GeV, respectively. |
