论文标题
pev tau中微子揭开超高能源
PeV Tau Neutrinos to Unveil Ultra-High-Energy Sources
论文作者
论文摘要
观察到超高能量EEV - 能源宇宙中微子为识别最高能量宇宙射线的来源提供了直接途径。到目前为止，搜索仅导致其通量上限。但是，随着立方公里探测器的实现，例如IceCube，以及在不久的将来，KM3NET，GVD-BAIKAL和类似工具，我们预计会观察到具有高统计量的PEV-能量宇宙中微子。在这种情况下，我们提请人们注意使用tau tau中微子在PEV能量上识别Eev Tau中微子的机会。我们表明，Cherenkov探测器可以通过间接观察Eev Tau Neutrinos，其初始能量名义上超出其触及范围，可以将其对瞬态点源的敏感性提高到一个数量级。这项新技术还提高了它们对超高能量弥漫性中微子通量的敏感性，最高为两个。我们的工作体现了PEV能量上观察中微子的观察如何为EEV通量提供了前所未有的范围。
The observation of ultra-high-energy EeV-energy cosmogenic neutrinos provides a direct path to identifying the sources of the highest energy cosmic rays; searches have so far resulted in only upper limits on their flux. However, with the realization of cubic-kilometer detectors such as IceCube and, in the near future, KM3NeT, GVD-Baikal, and similar instruments, we anticipate the observation of PeV-energy cosmic neutrinos with high statistics. In this context, we draw attention to the opportunity to identify EeV tau neutrinos at PeV energy using Earth-traversing tau neutrinos. We show that Cherenkov detectors can improve their sensitivity to transient point sources by more than an order of magnitude by indirectly observing EeV tau neutrinos with initial energies that are nominally beyond their reach. This new technique also improves their sensitivity to the ultra-high-energy diffuse neutrino flux by up to a factor of two. Our work exemplifies how observing tau neutrinos at PeV energies provides an unprecedented reach to EeV fluxes.
