多吨级暗物质直接探测实验的科学进展
The Scientific Reach of Multi-Ton Scale Dark Matter Direct Detection Experiments
摘要：
下一代大规模WIMP直接探测实验有可能超越发现阶段，揭示暗物质的粒子物理和天体物理的详细信息。我们在这里报告的早期结果所产生的发展的一个详细的数字代码建模的建议达尔文探测器，包括液态氩和氙的目标。我们将现实的探测器物理学，粒子物理学和天体物理学的不确定性，并证明在何种程度上具有相似的灵敏度的两个目标可以消除各种退化，并允许确定的暗物质的横截面和质量，同时也探测粗糙方面的暗物质相空间分布。我们发现，即使假设主导的自旋无关散射，多吨级的实验仍然有退化敏感地依赖于暗物质质量，和对可能性的同位旋破坏和相互作用中的非弹性。我们发现，这些实验是最好的能够区分暗物质属性的暗物质质量小于200 GeV左右。此外，有些令人惊讶的是，与一个曝光量更大的目标相比，使用两个目标在确定暗物质参数的能力上只得到了很小的改进（除了与任何声称的信号相关的不同系统学的优点之外）。
英文摘要：
The next generation of large scale WIMP direct detection experiments have the potential to go beyond the discovery phase and reveal detailed information about both the particle physics and astrophysics of dark matter. We report here on early results arising from the development of a detailed numerical code modeling the proposed DARWIN detector, involving both liquid argon and xenon targets. We incorporate realistic detector physics, particle physics and astrophysical uncertainties and demonstrate to what extent two targets with similar sensitivities can remove various degeneracies and allow a determination of dark matter cross sections and masses while also probing rough aspects of the dark matter phase space distribution. We find that, even assuming dominance of spin-independent scattering, multi-ton scale experiments still have degeneracies that depend sensitively on the dark matter mass, and on the possibility of isospin violation and inelasticity in interactions. We find that these experiments are best able to discriminate dark matter properties for dark matter masses less than around 200 GeV. In addition, and somewhat surprisingly, the use of two targets gives only a small improvement (aside from the advantage of different systematics associated with any claimed signal) in the ability to pin down dark matter parameters when compared with one target of larger exposure.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
