论文标题
限制与欧洲散布源的连贯弹性中微子核散射的非标准相互作用
Constraining Non-Standard Interactions with Coherent Elastic Neutrino-Nucleus Scattering at the European Spallation Source
论文作者
论文摘要
目前在瑞典正在建设的欧洲散布来源（ESS）将提供强烈的脉冲中微子通量，从而使相干弹性中微子核氧化物（CEνNS）具有高级核后线子探测器的高统计测量。在本文中，我们详细研究了通过ESS的这种精确的CEνNS测量来限制非标准中微子相互作用（NSIS）的可能性，考虑到单独或组合使用不同的检测技术。我们首先研究对中性NSI参数的敏感性，每个检测器在3年的数据获取中都可以达到。然后，我们证明同时操作两个检测器可以显着提高对风味 - 核NSI参数的预期灵敏度。当假定两个NSI参数一次不变时，将两个检测器的结果结合起来更有用。在这种情况下，适当选择的探测器组合可以将一些NSI参数对之间的归化性减少到参数空间的一个小区域。
The European Spallation Source (ESS), currently under construction in Sweden, will provide an intense pulsed neutrino flux allowing for high-statistics measurements of coherent elastic neutrino-nucleus scattering (CEνNS) with advanced nuclear recoil detectors. In this paper, we investigate in detail the possibility of constraining non-standard neutrino interactions (NSIs) through such precision CEνNS measurements at the ESS, considering the different proposed detection technologies, either alone or in combination. We first study the sensitivity to neutral-current NSI parameters that each detector can reach in 3 years of data taking. We then show that operating two detectors simultaneously can significantly improve the expected sensitivity on flavor-diagonal NSI parameters. Combining the results of two detectors turns out to be even more useful when two NSI parameters are assumed to be nonvanishing at a time. In this case, suitably chosen detector combinations can reduce the degeneracies between some pairs of NSI parameters to a small region of the parameter space.
