论文标题
直接检测冻结无弹性暗物质
Direct detection of freeze-in inelastic dark matter
论文作者
论文摘要
我们表明，如果深色扇区位于无弹性暗物质框架中，而激发的暗物质状态在宇宙学上稳定，那么当前直接检测实验的敏感性已经达到了冻结暗物质模型的有趣参数空间。利用Xenon1t实验最近提出的结果，我们对这些模型提出了约束。我们还表明，如果基态和激发态之间的质量差距为KEV量表，则这些模型可以解释电子后坐力信号中报告的过量。
We show that the current sensitivities of direct detection experiments have already reached the interesting parameter space of freeze-in dark matter models if the dark sector is in the inelastic dark matter framework and the excited dark matter state is cosmologically stable. Using results recently presented by the XENON1T experiment, we present constraints on these models. We also show that these models can explain the reported excess in the electron recoil signals if the mass gap between the ground state and the excited state is at keV scale.
