论文标题
使用NEST研究Xenon1t低能电子后坐力多余
Investigating the XENON1T Low-Energy Electronic Recoil Excess Using NEST
论文作者
论文摘要
搜索暗物质是宇宙缺失的质量，是粒子物理学中最活跃的研究领域之一。 Xenon1t实验最近观察到3.5 $σ$多余的潜在与暗物质或太阳轴一致。在这里，我们将使用贵族元素仿真技术（NEST）软件来模拟Xenon1t检测器，从而再现多余的。我们利用了不同的检测器效率和能量重建模型，但它们主要影响亚键能的能量，无法解释Xenon1t过量。但是，使用NEST，我们可以通过添加31 $ \ pm $ 11 $^{37} ar $衰减来最容易地以多种独特的方式重现它们的多余方式。此外，这导致了新的，修改的背景模型，将多余的意义降低至$ \le2.2σ$，至少使用非profile-libehienhiphohood率（PLR）方法。这是独立的确认，即过量是一种实际效果，但可以通过已知物理学来阐明。提出了我们$^{37} ar $假设的许多交叉检查。
The search for dark matter, the missing mass of the Universe, is one of the most active fields of study within particle physics. The XENON1T experiment recently observed a 3.5$σ$ excess potentially consistent with dark matter, or with solar axions. Here, we will use the Noble Element Simulation Technique (NEST) software to simulate the XENON1T detector, reproducing the excess. We utilize different detector efficiency and energy reconstruction models, but they primarily impact sub-keV energies and cannot explain the XENON1T excess. However, using NEST, we can reproduce their excess in multiple, unique ways, most easily via the addition of 31$\pm$11 $^{37}Ar$ decays. Furthermore, this results in new, modified background models, reducing the significance of the excess to $\le2.2σ$ at least using non-Profile Likelihood Ratio (PLR) methods. This is independent confirmation that the excess is a real effect, but potentially explicable by known physics. Many cross-checks of our $^{37}Ar$ hypothesis are presented.
