Abstract
A search for high-mass resonances decaying to πβ’π using proton-proton collisions at βπ =13ββTeV produced by the Large Hadron Collider is presented. Only π-lepton decays with hadrons in the final state are considered. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 36.1ββfbβ1. No statistically significant excess above the standard model expectation is observed; model-independent upper limits are set on the visible πβ’π production cross section. Heavy πβ² bosons with masses less than 3.7 TeV in the sequential standard model and masses less than 2.2β3.8 TeV depending on the coupling in the nonuniversal πΊβ‘(221) model are excluded at the 95% credibility level.