 ![\[fig:fcncpdf\]*Left*: limits on top decays into a neutral electroweak boson and a lighter quark. Current LHC bounds have been indicated, together with the expectation for 00 ab$^{-0}$ of electron-positron collisions at $\sqrt{s}=000$ GeV. Figure taken from Ref. [@Khanpour:0000xla]. *Right*: Total cross section for the production of a heavy Higgs boson in the 0FNS (red), 0FNS (blue) and ACOT scheme (black) for proton-proton collisions at $\sqrt{s}=000$ TeV. Figure taken from Ref. [@Han:0000nja].](