论文标题
在电子捕获超新星模型中，具有多齐达尔角度不稳定性的三种培养集体中微子转化
Three-flavor collective neutrino conversions with multi-azimuthal-angle instability in an electron-capture supernova model
论文作者
论文摘要
我们通过考虑在现实的电子捕获超新星模型中以$ 8.8 m _ {\ odot} $祖先考虑的三维中微子动量分布，研究了对集体中微子振荡的多动物角度（MAA）对集体中微子振荡的影响。我们发现，当轴向对称近似完全抑制时，MAA效应会在时期诱导集体风味转化。通过MAA不稳定性的增长，这项新型活动打开/关闭，并在预期的中微子事件速率中烙印。我们通过将线性稳定性分析扩展到包括混合角度在内的三种风味方案来验证我们的结果，并确认集体中微子振荡的发作与风味不稳定性的陡峭生长相匹配。我们讨论MAA效应如何改变超级Kamiokande和Dune的中微子检测。
We investigate the multi-azimuthal angle (MAA) effect on collective neutrino oscillation by considering the three-dimensional neutrino momentum distribution in a realistic electron-capture supernova model with an $8.8 M_{\odot}$ progenitor. We find that the MAA effect induces collective flavor conversions at epochs when it is completely suppressed under the axial-symmetric approximation. This novel activity is switched on/off by the growth of the MAA instability and imprints additional time evolution in the expected neutrino event rate. We validate our results by extending the linear stability analysis into the three-flavor scheme including mixing angles, and confirm that the onset of collective neutrino oscillation matches the steep growth of flavor instability. We discuss how the MAA effect alters neutrino detection at Super-Kamiokande and DUNE.
