论文标题
顶级合作伙伴和标量暗物质 - 非最小的重新评估
Top partners and scalar dark matter -- a non-minimal reappraisal
论文作者
论文摘要
超出标准粒子物理模型的大量模型表明，顶级夸克在基本相互作用中起着特殊的作用。同时，其中一些模型预测，该理论的物理光谱中存在负责暗物质的粒子，尤其是暗物质可能与顶部扇区特别相关。例如，在复合框架中发生这种新的物理配置，这些框架还以类似向量的夸克作为暗物质与标准模型的相互作用的介体。我们研究了顶级暗物质的相互作用以及几个类似矢量的顶级伙伴的存在。这种具有多种矢量样费米的非最小程度设置是复合情景的典型特征，我们利用一个有效的模型来研究这种非微小性在多大程度上改变了最小模型的撞机和宇宙学现象学，后者仅包括一个与标准模型的暗物质相互作用的矢量介质，包括一个媒介。
A large set of models beyond the Standard Model of particle physics suggest that the top quark plays a special role in fundamental interactions. At the same time some of these models predict that a particle responsible for dark matter is present in the physical spectrum of the theory, and in particular cases dark matter may be specially linked to the top sector. Such a new physics configuration occurs, for instance, in composite frameworks that additionally feature vector-like quarks as mediators of the interactions of the dark matter with the Standard Model. We investigate the interplay of top-philic dark matter and the presence of several vector-like top partners. Such a non-minimal setup with several vector-like fermions is typical of composite scenarios, and we make use of an effective model to study to which extent such non-minimality modifies the collider and cosmological phenomenology of the minimal model, the latter only including one vector-like mediator of the dark matter interactions with the Standard Model.
