本项目将研究两类与带质量的矢量玻色子有关的暗物质模型。其中之一是一种有自相互作用的暗物质模型（SIDM），其中的标量暗Higgs粒子和带质量的暗光子同时扮演自相互作用媒介的角色。在这种模型中，本项目将基于申请人过去的工作，重点关注暗物质束缚态、索末菲加强等非微扰效应强烈的参数空间，进行完整的唯象学研究，包括这类暗物质能否解决“核/峰问题”、“卫星星系过少”、和“看不到大卫星星系”等问题，能否在未来的对撞机和暗物质探测实验中探测到等问题。本项目还需要将目前的模型进行扩充与拓展，研究非阿贝尔规范场情况下的类似模型。本项目要研究的另一类模型是极弱相互作用的暗物质模型（FIMP），并专门考虑有质量的矢量玻色子参与反应的情况。如何计算有质量的矢量玻色子在实时间表象下的温度效应是这两类暗物质模型遇到的共同问题，因此可以在同一个项目中一并研究。

This project will support the studies of two kinds of dark matter models corresponding to the massive vector bosons. The first one is a sort of self-interacting dark matter model(s) (SIDM) with both the dark Higgs boson and the massive dark photon mediating the dark matter's self-interactions. Based upon the applicant's previous works, this project will focus on the parameter space that the dark matter bound state and the Sommerfeld effects dominate the dark matter annihilation processes, and will calculate the complete phenomenologies. These include the possibilities to solve the "core-cusp", "missing satellites" and "too big to fail" problems, and whether we could find the signals at the future colliders or dark matter detection experiments. Extensions and variants of such models will also be studied, including the similar models under the non-Abelian gauge groups. The second kind of the dark matter models to be studied in this project is the "Feebly interacting massive particle" (FIMP) model. This project will focus on the situation that massive vector boson participates the processes. These two models share the common problem to calculate the thermal performances of the massive vector bosons in the real-time formalism, so they can be studied within one single project.