论文标题
通过定向检测来区分暗物质质量和速度分布
Discrimination of Dark Matter Mass and Velocity Distribution by Directional Detection
论文作者
论文摘要
在大多数情况下，假定暗物质的速度分布是各向同性的，但是，在某些模拟中建议了各向异性。方向直接检测暗物质是区分暗物质速度分布各向异性的一种充满希望的方法。我们在定向直接检测中模拟暗物质和靶标散射，并研究区分各向异性所需的条件。如果知道暗物质质量，则如果其他实验知道暗物质质量，则需要$ O（10^3）-o（10^4）$事件。我们还研究了暗物质质量尚不清楚的案例，在使用后坐力和散射角度数据的分析中，暗物质质量和各向异性都可以比仅对任何一个分析的分析要好得多。
Velocity distribution of dark matter is assumed to be isotropic in most cases, however, anisotropy is suggested in some simulations. Directional direct detection of dark matter is a hopeful way to discriminate the anisotropy of dark matter velocity distribution. We simulate the dark matter and target scattering in the directional direct detection, and investigate conditions required to discriminate the anisotropy. If dark matter mass is known, $O(10^3)-O(10^4)$ events are required for the discrimination if the dark matter mass is known by other experiments. We also study the case that the dark matter mass is not known, and in analysis using both the recoil energy and the scattering angle data, both the dark matter mass and the anisotropy can be restricted much better than the analysis only with either of them.
