Abstract
A search for heavy neutral Higgs bosons is performed using the LHC Run 2 data, corresponding to an integrated luminosity of 139ββfbβ1 of proton-proton collisions at βπ =13ββTeV recorded with the ATLAS detector. The search for heavy resonances is performed over the mass range 0.2β2.5 TeV for the π+β’πβ decay with at least one π-lepton decaying into final states with hadrons. The data are in good agreement with the background prediction of the standard model. In the π125
β scenario of the minimal supersymmetric standard model, values of tanβ‘π½ >8 and tanβ‘π½ >21 are excluded at the 95% confidence level for neutral Higgs boson masses of 1.0 and 1.5 TeV, respectively, where tanβ‘π½ is the ratio of the vacuum expectation values of the two Higgs doublets.