Observability of earth-skimming ultrahigh energy neutrinos.
Observability of earth-skimming ultrahigh energy neutrinos.
复制标题
掠地超高能中微子的可观测性。
DOI：
10.1103/physrevlett.88.161102
复制
发表时间：
2001
影响因子：
8.6
通讯作者：
Terri M. Yu
中科院分区：
文献类型：
--
作者：
Jonathan L. Feng;P. Fisher;F. Wilczek;Terri M. Yu
能量在10(8)GeV以上的中微子预计来自宇宙射线与微波背景的相互作用，并在许多推测模型中得到了预测。这种高能中微子很难被探测到，因为它们在地球的阴影下，但很少在大气中相互作用。在这里，我们提出了一种新的探测策略：掠过地球的中微子转化为逃离地球的带电轻子，这些轻子被地面荧光探测器探测到。利用现有的HiRes探测器，来自某些拟议来源的中微子可以被微弱地探测到，并且在拟议的望远镜阵列上可能会有2个数量级的改进。
Neutrinos with energies above 10(8) GeV are expected from cosmic ray interactions with the microwave background and are predicted in many speculative models. Such energetic neutrinos are difficult to detect, as they are shadowed by Earth, but rarely interact in the atmosphere. Here we propose a novel detection strategy: Earth-skimming neutrinos convert to charged leptons that escape Earth, and these leptons are detected in ground level fluorescence detectors. With the existing HiRes detector, neutrinos from some proposed sources are marginally detectable, and improvements of 2 orders of magnitude are possible at the proposed Telescope Array.