来自银道面的高能中微子观测
高能天体物理现象
2023-07-11 v1 星系天体物理
机器学习
摘要
高能宇宙线（持续撞击地球大气层的原子核）的起源一个多世纪以来一直是个谜。由于星际磁场中的偏转，来自银河系的宇宙线从随机方向抵达地球。然而，在源附近及传播过程中，宇宙线与物质相互作用并产生高能中微子。我们运用机器学习技术对冰立方中微子天文台十年的数据展开搜索，通过将弥漫发射模型与仅有背景的假设进行比较，以 4.5 的显著水平确认了来自银道面的中微子发射。该信号与银道面建模的弥漫发射一致，但也可能源自一群未分辨的点源。
引用
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journal= {arXiv preprint arXiv:2307.04427},
year = {2023}
}
备注
Submitted on May 12th, 2022; Accepted on May 4th, 2023