A new LHC Run 2 search for diboson (WW, WZ and ZZ) resonances has been carried out with 37 inverse femtobarns of pp collisions collected by the ATLAS detector in 2015 and 2016. The search exploits jet substructure techniques to tag hadronic jets originating from the decay of W or Z bosons. The paper has been submitted to Phys. Lett. B, see http://arxiv.org/abs/1708.04445. Prof. Willocq, postdoctoral Research Associate Picazio and graduate student Meadows had responsibility for multiple aspects of the analysis (e.g. evaluating the boson-tagging performance, studying the modeling of the background, determining large-radius jet systematic uncertainties, etc.) and editing of the paper.

See the mass distribution for pairs of large-radius jets (figure on the right) with dashed curves showing the expected deviations in the presence of Kaluza-Klein excitations of the graviton, as predicted by the Randall-Sundrum model with one warped extra spatial dimension. Interpretations were also made in the context of a heavy scalar model and the heavy vector triplet model.

For more information, see https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2016-19/.