Supersymmetric models augmented by U(1)′ gauge symmetries resolve some of the outstanding problems in MSSM, such as the μ problem. Unfortunately collider phenomenology in such models is hindered by the stringent limits from the ATLAS and CMS collaborations on the Z′ boson mass. We explore possibilities of lowering the mass in either leptophobic models, by employing kinetic mixing, or in models with non-universal U(1)′ charges, where the Z′ boson does not couple either to the first two generation quarks, thus lowering its production cross-section, or to the first two generation leptons, thus lowering its di-lepton branching ratio. We verify consistency of these models with dark matter bounds and indicate the most promising signals at the collider.

由U（1）'规范对称性增强的超对称模型解决了MSSM中的一些突出问题，例如μ问题。不幸的是，此类模型中的对撞机现象学受到ATLAS和CMS合作对Z '玻色子质量的严格限制所阻碍。我们探索了通过运动混合或在具有非通用U（1）'电荷的模型 （其中Z为玻色子既不耦合至前两代夸克，从而降低了其生产截面，也不耦合至前两代轻子，从而降低了其双轻子分支比。我们用暗物质边界验证了这些模型的一致性，并在对撞机上指出了最有希望的信号。