论文标题
动力学混合，深色光子和额外的尺寸III：Brane局部暗物质
Kinetic Mixing, Dark Photons and Extra Dimensions III: Brane Localized Dark Matter
论文作者
论文摘要
事实证明，额外的尺寸是构建新物理模型的非常有用的工具。在较早的工作中，我们开始研究针对动力学混合/矢量门户场景的5-D类似物的玩具模型，其中暗物质的相互作用（例如，一个复杂的标量）与标准模型的brane-sepalizatization磁场（SM）介导了一个大量的$ U（1）_D $ u（1）_D $ dark Photem，居住在该集合中。这些模型被证明具有许多新颖的功能将它们与4-D类似物区分开来，并且在某些情况下避免了一些众所周知的4-D模型构建约束。但是，这些收益是以引入相当多的模型复杂性（例如暗物质kaluza-klein激发）的代价获得的。在本文中，我们考虑了一种替代设置，其中暗物质和黑暗希格斯负责$ u（1）_d $ breaking，它们都位于5-D间隔的另一端的“黑暗”棕褐色，与SM场所位于的5-D间隔相反，只有黑暗的光电元素是5-D Photon是一个5-D场。这种设置的现象学都针对扁平和扭曲的额外维度进行了探索，并与以前更复杂的模型进行了比较。
Extra dimensions have proven to be a very useful tool in constructing new physics models. In earlier work, we began investigating toy models for the 5-D analog of the kinetic mixing/vector portal scenario where the interactions of dark matter, taken to be, e.g., a complex scalar, with the brane-localized fields of the Standard Model (SM) are mediated by a massive $U(1)_D$ dark photon living in the bulk. These models were shown to have many novel features differentiating them from their 4-D analogs and which, in several cases, avoided some well-known 4-D model building constraints. However, these gains were obtained at the cost of the introduction of a fair amount of model complexity, e.g., dark matter Kaluza-Klein excitations. In the present paper, we consider an alternative setup wherein the dark matter and the dark Higgs, responsible for $U(1)_D$ breaking, are both localized to the 'dark' brane at the opposite end of the 5-D interval from where the SM fields are located with only the dark photon now being a 5-D field. The phenomenology of such a setup is explored for both flat and warped extra dimensions and compared to the previous more complex models.
