论文标题
通过散射和振荡数据来解决中微子NSI归化性的全球分析策略
A global analysis strategy to resolve neutrino NSI degeneracies with scattering and oscillation data
论文作者
论文摘要
中微子非标准相互作用(NSI)与第一代标准模型费米子可以跨越大维的参数空间,并且表现出一类实验不能破坏的脱生。振荡实验以及中微子散射实验可以将其观察结果合并到高度信息数据集中,以解决此问题。我们考虑结合来自Borexino和相干实验的中微子 - 电子和中微子核散射数据,包括在CENNS-10液体Argon检测器上的即将到来的相干中微子散射测量的投影。我们将这些数据集的覆盖范围扩展到了NSI参数空间上,并在未来的多吨尺度暗物质检测器上进行中微子散射的投影,并在深层地下中微子实验(Dune)的大气中微子(Dune)的大气中微子上进行了未来的振荡测量。为了执行此全局分析,我们采用了一种使用Copula方法的新方法,该方法用于将来自不同实验的后验信息与大型,广义的NSI参数组合在一起。我们发现,Dune和暗物质检测器对Borexino和相干拟合的贡献可以改善对电子和Quark NSI参数的约束,甚至在相对较多的NSI参数中可以自由自由变化,但在分析中也有自由变化。
Neutrino non-standard interactions (NSI) with the first generation of standard model fermions can span a parameter space of large dimension and exhibit degeneracies that cannot be broken by a single class of experiment. Oscillation experiments, together with neutrino scattering experiments, can merge their observations into a highly informational dataset to combat this problem. We consider combining neutrino-electron and neutrino-nucleus scattering data from the Borexino and COHERENT experiments, including a projection for the upcoming coherent neutrino scattering measurement at the CENNS-10 liquid argon detector. We extend the reach of these data sets over the NSI parameter space with projections for neutrino scattering at a future multi-ton scale dark matter detector and future oscillation measurements from atmospheric neutrinos at the Deep Underground Neutrino Experiment (DUNE). In order to perform this global analysis, we adopt a novel approach using the copula method, utilized to combine posterior information from different experiments with a large, generalized set of NSI parameters. We find that the contributions from DUNE and a dark matter detector to the Borexino and COHERENT fits can improve constraints on the electron and quark NSI parameters by up to a factor of 2 to 3, even when relatively many NSI parameters are left free to vary in the analysis.