论文标题
使用核心大气中微子在ino-ical中区分洛伦兹违规和非标准相互作用
Discriminating between Lorentz violation and non-standard interactions using core-passing atmospheric neutrinos at INO-ICAL
论文作者
论文摘要
中微子振荡参数的精确测量为搜索子领导效应的巨大增强，这是由于中微子振荡实验中的标准模型场景超出了标准模型方案。其中，有两个良好的情况是洛伦兹违规（LV）和非标准相互作用（NSI），这两种情况都可以显着影响中微子振荡。我们指出，在一个长基线实验中，可以通过使用线平均恒定物质密度来良好地对中微子的振荡概率进行良好的影响，这两种情况的影响可以相互模仿。这将允许在这样的实验上在上述一个方案之一上获得的限制直接转换为另一种情况的限制。但是，出于同样的原因，在长基线实验中很难区分LV和NSI。我们表明，大气中微子的观察结果可能会破坏这种脱落性。我们观察到，正如在Ino-ical可以做到的那样，可以分别识别中微子和抗神经酮，可以增强大气中微子实验的能力，以区分这两种新物理方案。
Precision measurements of neutrino oscillation parameters have provided a tremendous boost to the search for sub-leading effects due to several beyond the Standard Model scenarios in neutrino oscillation experiments. Among these, two of the well-studied scenarios are Lorentz violation (LV) and non-standard interactions (NSI), both of which can affect neutrino oscillations significantly. We point out that, at a long-baseline experiment where the neutrino oscillation probabilities can be well-approximated by using the line-averaged constant matter density, the effects of these two scenarios can mimic each other. This would allow the limits obtained at such an experiment on one of the above scenarios to be directly translated to the limits on the other scenario. However, for the same reason, it would be difficult to distinguish between LV and NSI at a long-baseline experiment. We show that the observations of atmospheric neutrinos, which travel a wide range of baselines and may encounter sharp density changes at the core-mantle boundary, can break this degeneracy. We observe that identifying neutrinos and antineutrinos separately, as can be done at INO-ICAL, can enhance the capability of atmospheric neutrino experiments to discriminate between these two new-physics scenarios.
