"Figure 6 (Signal Region)" of "Search for dark matter produced in association with a pair of bottom quarks in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

Observed and predicted $\cos\Theta$* distributions in the 2b category, in the Signal Region. The bottom plot shows the ratio of observed and predicted (both prefit and postfit) distributions along with an uncertainty band that includes both the systematic and statistical components.