Gravitino Dark Matter with Stop as the NLSP
Gravitino Dark Matter with Stop as the NLSP
复制标题
以 Stop 作为 NLSP 的 Gravitino 暗物质
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Y. Santoso
中科院分区：
文献类型：
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作者：
Y. Santoso
Gravitino 是超重力模型中暗物质的一种可行候选者。由于其耦合受到普朗克质量的抑制，引力子与其他粒子的相互作用非常弱，这使得直接检测或在对撞机上产生它几乎是不可能的。这种情况的特征主要来自次轻超对称粒子（NLSP），由于耦合非常弱，该粒子是亚稳态的。 NLSP有很多可能性，这里我将回顾停止粒子作为NLSP的可行性并讨论其现象学。
Gravitino is one feasible candidate for the dark matter in supergravity models. With its couplings being suppressed by the Plank mass, gravitino interacts very weakly with other particles, making its direct detection, or production at colliders practically impossible. The signatures of this scenario mainly arise from the next lightest supersymmetric particle (NLSP) which is metastable due to the very weak coupling. There are many possibilities for the NLSP, and here I will review the feasibility of stop particle as the NLSP and discuss its phenomenology.