"Figure 6" of "Search for a heavy resonance decaying into a Z and a Higgs boson in events with an energetic jet and two electrons, two muons, or missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

Expected and observed upper limits at 95% CL on the product of the production cross section and the branching fraction as functions of the Z' boson mass from the combination of all final states. The limits are compared with the predictions of the HVT model and the expected limits (shown by red curves) from a previous analysis.

本数据集基于所有末态的联合分析，给出了以Z'玻色子（Z' boson）质量为自变量的产生截面（production cross section）与分支比（branching fraction）乘积的95%置信度观测上限与预期上限。将上述上限与HVT模型（HVT model）的理论预言，以及此前一项分析得到的预期上限（以红色曲线呈现）进行了对比。