"Figure 5 (left)" of "Search for $\gamma$H production and constraints on the Yukawa couplings of light quarks to the Higgs boson"

Distributions of events for $\mathcal{D}_{\text{bkg}}$ observable in the $\gamma$-tagged (left) and Untagged (right) categories of the $\text{H}\to 4\ell$ candidate events. Observed events (black markers) and expected background estimates (solid histograms) from MC simulation (ZZ/Z$\gamma^*$) or control samples in data (Z+X) are shown. The $\gamma \text{H}$ signal contribution, stacked on top of background, is shown with an open histogram for an assumed cross section of $\sigma_{\gamma H}\times{\cal B}(H\to 4\ell)=1$ fb for either the $c_{\gamma\gamma}$ (solid) and $c_{z\gamma}$ (dashed) coupling hypothesis.