LHCP POSTER SESSION – BOLOGNA, JUNE 2018 Search for resonant WZ production in the fully leptonic final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector

A search for a heavy resonance decaying intoWZ in the fully leptonic channel is performed. It is based on proton–proton collision data collected by the ATLAS experiment at the Large Hadron Collider at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 36.1 fb$^{-1}$. No significant excess is observed over Standard Model predictions and limits are set on the production cross section times branching ratio of a heavy vector particle produced either in quark–antiquark fusion or through vector-boson fusion. Constraints are also obtained on the mass and couplings of a singly charged Higgs boson, in the Georgi–Machacek model, produced through vector-boson fusion.