This analysis evaluates the possibility of the search for Dark Matter (DM) particles using events with a Z heavy gauge boson and a large missing transverse momentum at the Large Hadron Collider (LHC). We consider the muonic decay of Z . The analyzed Monte Carlo samples were the Open simulated files produced by the Compact Muon Solenoid (CMS) collaboration for proton-proton collisions, corresponding to an integrated luminosity of the LHC run-I with 19.7 fb at 8 TeV. Two scenarios, namely a simplified benchmark scenario, called Dark Higgs, and the effective field theory (EFT) formalism, were used for interpretations. Limits were set on Z , dark matter masses, and the cutoff scale of the EFT.

该分析评估了在大型强子对撞机 (LHC) 上使用具有Z 重规范玻色子和大量缺失横向动量的事件来搜索暗物质 (DM) 粒子的可能性。我们考虑Z 的 介子衰变。分析的蒙特卡罗样本是由 Compact Muon Solenoid (CMS) 协作生成的用于质子 - 质子碰撞的开放模拟文件，对应于 LHC run-I 的综合光度，在8 TeV 时为 19.7 fb 。两个场景，即称为 Dark Higgs 的简化基准场景和有效场论 (EFT) 形式主义，用于解释。对Z 、暗物质质量和 EFT 的截止尺度设置了限制。