Search for diboson resonances with jets in 20.3 fb$^{-1}$ pp collisions at $\sqrt{s} =$ 8 TeV with the ATLAS detector

A search for narrow diboson high mass resonances in a dijet final state is performed in 20.3 fb$^{-1}$ of proton-proton collisions at a center-of-mass energy of $\sqrt{s} =$ 8 TeV, collected in 2012 by the ATLAS detector at the Large Hadron Collider. The jet mass and jet substructure properties have been used to tag each jet as a boson. Using the invariant mass distribution of the boson tagged dijet system, 95 $\%$ CL exclusion limits are set on the production cross section times branching ratio to $WW$, $WZ$, or $ZZ$ final states of $W^{\prime}$ Extended Gauge Model (EGM) bosons and Kaluza-Klein excitations of the graviton in the bulk Randall-Sundrum model, as a function of the resonance mass. The observed mass distributions exhibit an excess of events above 1.8 TeV.