标题： 隐秘超对称简化 显示英文标题

标题： Stealth Supersymmetry Simplified

摘要： 在隐形超对称中，由于缺失能量被抑制，直接搜索对超粒子的限制可能明显弱于标准超对称场景。我们提出了一组隐形超对称的简化模型，这些模型激发了13 TeV LHC的搜索。我们专注于自然超对称框架内的简化模型，在这些模型中假设胶微子、顶夸克和希格斯微子比其他超粒子更轻。我们的简化模型表现出与最小超对称标准模型（MSSM）拓扑结构显著不同的新衰变模式，无论是否具有$R$-宇称。我们确定了来自8 TeV LHC搜索的顶夸克和胶微子的限制。现有的搜索是对具有某些拓扑结构的隐形超对称胶微子的强大探测手段。然而，我们识别出一些简化模型，其中胶微子可以明显轻于1 TeV。在隐形超对称中，顶夸克受到的约束远小于MSSM，并且我们已经识别出一些现有LHC搜索完全无法约束的顶夸克衰变拓扑结构。 显示英文摘要

摘要： In Stealth Supersymmetry, bounds on superpartners from direct searches can be notably weaker than in standard supersymmetric scenarios, due to suppressed missing energy. We present a set of simplified models of Stealth Supersymmetry that motivate 13 TeV LHC searches. We focus on simplified models within the Natural Supersymmetry framework, in which the gluino, stop, and Higgsino are assumed to be lighter than other superpartners. Our simplified models exhibit novel decay patterns that differ significantly from topologies of the Minimal Supersymmetric Standard Model, with and without $R$-parity. We determine limits on stops and gluinos from searches at the 8 TeV LHC. Existing searches constitute a powerful probe of Stealth Supersymmetry gluinos with certain topologies. However, we identify simplified models where the gluino can be considerably lighter than 1 TeV. Stops are significantly less constrained in Stealth Supersymmetry than the MSSM, and we have identified novel stop decay topologies that are completely unconstrained by existing LHC searches.