Search for diboson resonances with jets in 20fb$^{-1}$ of $pp$ collisions at $\sqrt[]{s}=8$ TeV with the ATLAS detector

ATLAS data coming from 2012 8 TeV pp collisions are used to search for narrow diboson resonances in a dijet final state, where each jet is identified as originating from the hadronic decay of a W or Z boson. The hadronic final state offers the highest branching ratio but it also has a huge QCD dijet background associated; to cope with it the analysis utilizes substructure within jets to identify diboson events. A data driven estimate of the background is used and any sign of new physics is expected as an excess of events in a smoothly falling dijet mass spectrum. The results are interpreted in terms of W$'$ bosons and Kaluza-Klein excitations of the graviton in the Randall-Sundrum model.