论文标题
带有隐藏$ \ mathrm {u}（1）$量表相互作用和动力学混合的费米和标量暗物质
Fermionic and scalar dark matter with hidden $\mathrm{U}(1)$ gauge interaction and kinetic mixing
论文作者
论文摘要
我们在隐藏的$ \ mathrm {u}（1）_ \ mathrm {x} $ gauge理论的框架中探索dirac fermionic和复杂的标量暗物质，并在$ \ mathrm {u}（u}（1）_ \ mathrm {x} $和$ \ mathrm}（1）（1）$} $} $} $}（1）$} $ {y}（1）（字段。 $ \ mathrm {u}（1）_ \ mathrm {x} $量规对称性由于隐藏的希格斯字段而自发损坏。动力学混合提供了暗物质和标准模型颗粒之间的门户。此外，在复杂的标量案例中可以实现额外的Higgs门户。与核子的暗物质相互作用通常违反等异，可以缓解直接检测约束。尽管动力学混合受到electroweak倾斜参数的严格限制，但我们发现有几个可用的参数区域可以通过热生产机制预测观察到的遗物丰度。此外，在当前直接和间接检测实验中尚未完全探索这些区域。未来的直接检测实验和在希格斯工厂寻找无形的希格斯腐烂可能会进一步研究这些地区。
We explore the Dirac fermionic and complex scalar dark matter in the framework of a hidden $\mathrm{U}(1)_\mathrm{X}$ gauge theory with kinetic mixing between the $\mathrm{U}(1)_\mathrm{X}$ and $\mathrm{U}(1)_\mathrm{Y}$ gauge fields. The $\mathrm{U}(1)_\mathrm{X}$ gauge symmetry is spontaneously broken due to a hidden Higgs field. The kinetic mixing provides a portal between dark matter and standard model particles. Besides, an additional Higgs portal can be realized in the complex scalar case. Dark matter interactions with nucleons are typically isospin violating, and direct detection constraints can be relieved. Although the kinetic mixing has been stringently constrained by electroweak oblique parameters, we find that there are several available parameter regions predicting an observed relic abundance through the thermal production mechanism. Moreover, these regions have not been totally explored in current direct and indirect detection experiments. Future direct detection experiments and searches for invisible Higgs decays at a Higgs factory could further investigate these regions.
