论文标题
NMSSM万岁！
Long live The NMSSM!
论文作者
论文摘要
我们分析了最小的超对称标准模型（NMSSM）中的场景，其中最轻的超对称粒子（LSP）是单诺碱样中性诺。通过系统地考虑Electroweakino扇区中各种可能的混合物，我们对参数空间的区域进行了分类，其中接下来最轻的超对称粒子（NLSP）是一个长期寿命的electroweakino，同时与风味物理，暗物质直接检测和Collider数据的约束保持一致。我们确定了具有直接产生的Chargino-Neutralino Pairs的长寿命NLSP的可行级联衰变模式，因此导致高光度LHC（HL-LHC）处的位移顶点签名。我们构建基于轨道的分析，以便在HL-LHC上发现此类情况并分析其发现潜力。我们表明，通过对HL-LHC的长寿命颗粒进行的这种集中搜索，可以探测Electroweakino参数空间的区域，这些区域原本具有挑战性。
We analyze the scenario within the Next to Minimal Supersymmetric Standard Model (NMSSM), where the lightest supersymmetric particle (LSP) is singlino-like neutralino. By systematically considering various possible admixtures in the electroweakino sector, we classify regions of parameter space where the next to lightest supersymmetric particle (NLSP) is a long-lived electroweakino while remaining consistent with constraints from flavor physics, dark matter direct detection, and collider data. We identify viable cascade decay modes featuring the long-lived NLSP for directly produced chargino-neutralino pairs, thus, leading to displaced vertex signatures at the high luminosity LHC (HL-LHC). We construct track based analysis in order to uncover such scenarios at the HL-LHC and analyze their discovery potential. We show that through such focused searches for the long-lived particles at the HL-LHC, one can probe regions of the electroweakino parameter space that are otherwise challenging.
