论文标题
矢量暗物质来自量子的$ su（2）$对称性
Vector dark matter from a gauged $SU(2)$ symmetry
论文作者
论文摘要
我们提出了一个由隐藏的$ su（2）$量规对称性描述的黑暗扇区的场景，该方案被标量多重的真空期望值（VEV）打破。我们讨论自发对称性破坏后$ SU（2）$量规玻色子之间的一般质量关系，该玻色子是由与标量多重级别开发VEV相关的量规组表示的重量确定的。然后，讨论了具有五重和三重态标量字段的模型，其中隐藏的量规玻色可以是暗物质（DM），通过残余离散$ z_2 $对称性稳定，并通过DM和Mediator之间的质量关系实现了共鸣的暗物质。我们估计遗物密度和自旋独立的DM核子散射横截面，以寻找允许的参数区域。
We propose a scenario of dark sector described by a hidden $SU(2)$ gauge symmetry which is broken by a vacuum expectation value(VEV) of a scalar multiplet. We discuss a general mass relation among $SU(2)$ gauge bosons after spontaneous symmetry breaking which is determined by weight of gauge group representation associated with a scalar multiplet developing VEV. Then a model with quintet and triplet scalar fields is discussed in which hidden gauge boson can be dark matter(DM) stabilized by remnant discrete $Z_2$ symmetry and resonant dark matter annihilation is realized by mass relation between DM and mediator. We estimate relic density and spin independent DM-nucleon scattering cross section searching for allowed parameter region.
