论文标题
从增强和Migdal效应的Sub-Gev暗物质上的新强度界限
New Strong Bounds on sub-GeV Dark Matter from Boosted and Migdal Effects
论文作者
论文摘要
由于低核后坐力，亚GEV暗物质（DM）通常超出了常规DM直接检测实验的灵敏度。已提出了增强和Migdal散射机制，作为寻找光DM的两种新互补途径。在这项工作中，我们考虑了DM核散射中的动量转移效应，以在这两种情况下得出Sub-GEV DM上的新界限。我们表明，这种效果是相当大的，因此可以显着改善DM核散射横截面上的现有界限。
Due to the low nuclear recoils, sub-GeV dark matter (DM) is usually beyond the sensitivity of the conventional DM direct detection experiments. The boosted and Migdal scattering mechanisms have been proposed as two new complementary avenues to search for light DM. In this work, we consider the momentum-transfer effect in the DM-nucleus scattering to derive the new bounds on sub-GeV DM for these two scenarios. We show that such an effect is sizable so that the existing bounds on the DM-nucleus scattering cross section can be improved significantly.
