"Figure 3a" of "Search for a new resonance decaying to a Higgs boson and a scalar boson in events with two b jets and two Z bosons in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV"

The BDT score $\mathrm{S_{BDT}}$ distribution in the fully resolved SR qq0M. The backgrounds distributions are from post-fit; three pre-fit distributions of signals are also displayed, correspond to resonance X mass 500, 1000, 2000 GeV, with the cross section of production of resonance X set to 100 pb and its branching fraction to HH set to 1.