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The Search for Electroweakinos
Annual Review of Nuclear and Particle Science ( IF 12.4 ) Pub Date : 2020-10-19 , DOI: 10.1146/annurev-nucl-031020-121031
Anadi Canepa 1 , Tao Han 1 , Xing Wang 1
Affiliation  

In this review, we consider a general theoretical framework for fermionic color-singlet states, including a singlet, a doublet and a triplet under the standard model SU(2)$_{\rm L}$ gauge symmetry, corresponding to the Bino, Higgsino and Wino in Supersymmetric theories, generically dubbed as "electroweakinos" for their mass eigenstates. Depending on the relations among their three mass parameters and the mixings after the electroweak symmetry breaking, this sector leads to rich phenomenology potentially accessible at the current and near-future experiments. We discuss the decay patterns of the electroweakinos and their observable signatures at colliders. We review the existing bounds on the model parameters. We summarize the current status for the comprehensive searches from the ATLAS and CMS experiments at the LHC. We comment on the prospects for future colliders. An important feature of the theory is that the lightest neutral electroweakino can be identified as a WIMP cold dark matter candidate. We take into account the existing bounds on the parameters from the dark matter direct detection experiments and discuss the complementarity for the electroweakino searches at colliders.

中文翻译:

寻找 Electroweakinos

在这篇综述中,我们考虑了费米色单线态的一般理论框架,包括标准模型 SU(2)$_{\rm L}$ 规范对称下的单线态、双线态和三线态,对应于 Bino,超对称理论中的 Higgsino 和 Wino,由于它们的质量本征态,通常被称为“弱电”。根据它们的三个质量参数和电弱对称性破坏后的混合之间的关系,该部门导致在当前和近期实验中可能获得的丰富现象学。我们讨论了电弱子的衰减模式及其在对撞机上的可观察特征。我们回顾了模型参数的现有界限。我们总结了来自 LHC 的 ATLAS 和 CMS 实验的综合搜索的当前状态。我们评论未来对撞机的前景。该理论的一个重要特征是,最轻的中性电弱能被确定为 WIMP 冷暗物质候选者。我们考虑了暗物质直接检测实验中参数的现有界限,并讨论了对撞机电弱搜索的互补性。
更新日期:2020-10-19
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