论文标题
如何在沙丘上识别不同的新中微子振荡物理场景
How to Identify Different New Neutrino Oscillation Physics Scenarios at DUNE
论文作者
论文摘要
预计下一代中微子振荡实验将以很好的精度测量其余的振荡参数。他们将具有前所未有的功能来搜索修改振荡的新物理学。沙丘，其宽带束，良好的粒子识别和相对较高的能量将为寻找新物理学的良好环境。但是，如果可以看到与标准的三味振荡图片的偏差，那么知道发现哪种新物理方案，以便可以在其他地方进行验证并从理论上了解到哪种新物理方案。我们通过查看来自NOVA和T2K的现有的长基线加速器中微子数据来研究几个基准新物理方案，并确定在哪种灵敏度沙丘中可以区分的敏感性。我们认为无菌中微子以及载体和标量非标准中微子相互作用都具有新的复杂阶段，后者可以想象可以提供绝对的中微子质量尺度信息。我们发现，在许多有趣的情况下，沙丘将具有良好的模型歧视。我们还使用标量NSI对NOVA和T2K数据进行了新的拟合。
Next generation neutrino oscillation experiments are expected to measure the remaining oscillation parameters with very good precision. They will have unprecedented capabilities to search for new physics that modify oscillations. DUNE, with its broad band beam, good particle identification, and relatively high energies will provide an excellent environment to search for new physics. If deviations from the standard three-flavor oscillation picture are seen however, it is crucial to know which new physics scenario is found so that it can be verified elsewhere and theoretically understood. We investigate several benchmark new physics scenarios by looking at existing long-baseline accelerator neutrino data from NOvA and T2K and determine at what sensitivity DUNE can differentiate among them. We consider sterile neutrinos and both vector and scalar non-standard neutrino interactions, all with new complex phases, the latter of which could conceivably provide absolute neutrino mass scale information. We find that, in many interesting cases, DUNE will have good model discrimination. We also perform a new fit to NOvA and T2K data with scalar NSI.
