Search for heavy neutral Higgs bosons decaying into a top quark pair in 140 fb${}^{-1}$ of proton-proton collision data at $\sqrt{s}=13$ TeV with the ATLAS detector

ATLAS Collaboration

A search for heavy pseudo-scalar ($A$) and scalar ($H$) Higgs bosons decaying into a top-quark pair ($t\bar{t}$) has been performed with 140 fb${}^{-1}$ of proton-proton collision da…