论文标题
在最小的迪拉克仪表模型中限制electroweakinos
Constraining Electroweakinos in the Minimal Dirac Gaugino Model
论文作者
论文摘要
带有狄拉克而不是Majorana gaugino群众的超对称模型具有明显的现象学后果。在本文中,我们研究了关于暗物质(DM)和对撞机约束的最小Dirac Gaugino超对称标准模型(MDGSSM)的电牵引区域。我们描绘了MDGSSM最轻的中性诺的参数空间是一个可行的DM候选者,它至少使观察到的遗物丰度至少一部分,同时从DM直接检测,LEP和Lowenergy Data和LHC HIGGS测量中探索了约束。与最小的超对称标准模型(MSSM)相比,因此,新兴场景的对撞机的现象学的特征在于较丰富的电谱光谱 - 6个中性和3个charginos,而不是4和3个charginos,而不是4和2,而不是自然的小质量散布,并且经常存在长期存在的charchinginos和或或或或中性属群。在Smodels和Madanalysis 5的帮助下,对ATLAS和CMS进行了重新解释,我们讨论了现有LHC搜索对这些情况的新物理学的敏感性,并展示了哪些情况可以受到限制以及哪些逃生检测。最后,我们提出了一组基准点,可用于进一步研究,设计专用的实验分析和/或研究未来实验的潜力。
Supersymmetric models with Dirac instead of Majorana gaugino masses have distinct phenomenological consequences. In this paper, we investigate the electroweakino sector of the Minimal Dirac Gaugino Supersymmetric Standard Model (MDGSSM) with regards to dark matter (DM) and collider constraints. We delineate the parameter space where the lightest neutralino of the MDGSSM is a viable DM candidate, that makes for at least part of the observed relic abundance while evading constraints from DM direct detection, LEP and lowenergy data, and LHC Higgs measurements. The collider phenomenology of the thus emerging scenarios is characterised by the richer electroweakino spectrum as compared to the Minimal Supersymmetric Standard Model (MSSM) -- 6 neutralinos and 3 charginos instead of 4 and 2 in the MSSM, naturally small mass splittings, and the frequent presence of long-lived particles, both charginos and/or neutralinos. Reinterpreting ATLAS and CMS analyses with the help of SModelS and MadAnalysis 5, we discuss the sensitivity of existing LHC searches for new physics to these scenarios and show which cases can be constrained and which escape detection. Finally, we propose a set of benchmark points which can be useful for further studies, designing dedicated experimental analyses and/or investigating the potential of future experiments.