论文标题
最大的自我互动暗物质：模型和预测
Maximally self-interacting dark matter: models and predictions
论文作者
论文摘要
我们研究自我互动的暗物质（SIDM）方案，其中$ s $ - 波散射的横截面几乎使单位性界限饱和。这种自散射的横截面是通过暗物质质量单独进行参数化的，并且以较大速度的速度依赖性强。从银河系的矮球星系到星系簇，对暗物质光环的观察可能会表明它们。我们将模型参数固定为饱和以良好动机的SIDM模型结合的单位性：测量的$L_μ -L_μ -l_τ$模型和复合不对称的暗物质模型。我们讨论了这种模型参数的含义和预测，例如$ h_ {0} $张力和深色 - 物质直接检测实验，以及粒子现象学等粒子现象学等实验。
We study self-interacting dark matter (SIDM) scenarios, where the $s$-wave self-scattering cross section almost saturates the Unitarity bound. Such self-scattering cross sections are singly parameterized by the dark matter mass, and are featured by strong velocity dependence in a wide range of velocities. They may be indicated by observations of dark matter halos in a wide range of masses, from Milky Way's dwarf spheroidal galaxies to galaxy clusters. We pin down the model parameters that saturates the Unitarity bound in well-motivated SIDM models: the gauged $L_μ - L_τ$ model and composite asymmetric dark matter model. We discuss implications and predictions of such model parameters for cosmology like the $H_{0}$ tension and dark-matter direct-detection experiments, and particle phenomenology like the beam-dump experiments.
