论文标题
Darkside-50实验中液体氩靶的有效现场理论相互作用
Effective field theory interactions for liquid argon target in DarkSide-50 experiment
论文作者
论文摘要
我们重新通过Darkside-50实验收集的数据，并最近用于对氩核上具有有效的现场理论框架上弱相互作用的巨型颗粒（WIMP）的自旋相互作用速率设置限制。该数据集使用从地下来源提取的低放射性氩气目标（16660 $ \ pm $ 270）kg d暴露。我们获得了非依赖性系统扩张中12个领先操作员的有效耦合的上限。对于每个有效的耦合，我们对Wimp-Nucleon横截面设置约束，将上限设置在$ 2.4 \ times 10^{ - 45} \，\ Mathrm {cm}^2 $和$ 2.3 \ times 10^{ - 42} { - 42}} \ Mathrm {cm}^2 $和6.0 $ \ times 10^{ - 42} \，\ mathrm {cm}^2 $）质量为100 $ \ mathrm {gev/c^2} $（1000 $ \ mathrm {gev/c^2} $）的质量100 $ \ mathrm {gev/c^2} $ clucter。
We reanalize data collected with the DarkSide-50 experiment and recently used to set limits on the spin-independent interaction rate of weakly interacting massive particles (WIMPs) on argon nuclei with an effective field theory framework. The dataset corresponds to a total (16660 $\pm$ 270) kg d exposure using a target of low-radioactivity argon extracted from underground sources. We obtain upper limits on the effective couplings of the 12 leading operators in the nonrelativistic systematic expansion. For each effective coupling we set constraints on WIMP-nucleon cross sections, setting upper limits between $2.4 \times 10^{-45} \, \mathrm{cm}^2$ and $2.3 \times 10^{-42} \, \mathrm{cm}^2$ (8.9 $\times 10^{-45} \, \mathrm{cm}^2$ and 6.0 $\times 10^{-42} \, \mathrm{cm}^2$) for WIMPs of mass of 100 $\mathrm{GeV/c^2}$ (1000 $\mathrm{GeV/c^2}$) at 90\% confidence level.
