We analyze the impact of resonant conversions mediated by non-vanishing magnetic moments between active neutrinos and a heavy sterile neutrino on the supernova neutrino flux. We present the level-crossing scheme for such a scenario and derive the neutrino fluxes after conversion, paying particular attention to the order in which the resonances occur. We then compute the expected event rates from the neutronization burst of a future supernova at DUNE and Hyper-Kamiokande to derive new constraints on the neutrino magnetic moment. With this, we find a sensitivity down to a few 10^-15 μ_B for a sterile neutrino in the O(eV) mass range.

中文翻译：

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惰性中微子的共振自旋味进动

我们分析了活性中微子和重惰性中微子之间的非消失磁矩介导的共振转换对超新星中微子通量的影响。我们提出了这种情况的水平交叉方案，并推导出转换后的中微子通量，特别注意共振发生的顺序。然后，我们计算 DUNE 和 Hyper-Kamiokande 未来超新星爆发的预期事件率，以得出中微子磁矩的新约束。由此，我们发现惰性中微子的灵敏度低至几个 10 ^-15 μ _B氧(eV) 质量范围。