New physics in neutrino sector can reveal itself via non-standard neutrino interactions which can result in modification of the standard picture of neutrino propagation in matter. Experiments with atmospheric neutrinos has been used to probe this scenario. Using publicly available three-year low energy data in IceCube DeepCore we place bounds on the parameters αβ of nonstandard neutrino interactions in propagation. We obtain restrictive constraints not only for μτ sector but also for flavor changing interactions involving electron neutrinos.

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来自 IceCube DeepCore 数据的中微子非标准相互作用的界限

中微子领域的新物理学可以通过非标准中微子相互作用来揭示自身，这可能导致中微子在物质中传播的标准图像的修改。大气中微子实验已被用于探测这种情况。使用 IceCube DeepCore 中公开可用的三年低能量数据，我们对传播中非标准中微子相互作用的参数 αβ 设置了界限。我们不仅为 μτ 扇区获得了限制性约束，而且还获得了涉及电子中微子的风味变化相互作用的限制性约束。