Abstract Tau neutrinos with energies in the PeV-EeV range produce up-going extensive air showers (UEAS) if they interact underground close enough to the surface of the Earth. This work studies detectability of the UEAS with a system of fluorescence telescopes overlooking dark, low reflectivity, area on the ground up to the distances 20-50 km from mountain top(s). Such system could provide sensitivity sufficient for accumulation of the astrophysical neutrino signal statistics at the rate ten(s) events per year in the energy range beyond 10 PeV, thus allowing to extend the energy frontier of neutrino astronomy into 10-100 PeV range. Comparison of sensitivities of the top-of-the-mountain telescope and IceCube Generation II shows that the two approaches for neutrino detection are complementary, providing comparable performance in adjacent energy bands below and above 10 PeV. Sensitivity of the top-of-the-mountain fluorescence telescope system is also sufficient for the discovery of theoretically predicted cosmogenic neutrino signal.

中文翻译：

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山顶荧光望远镜系统对10 PeV以上天体物理中微子通量的灵敏度

摘要 能量在 PeV-EeV 范围内的 Tau 中微子如果在离地球表面足够近的地下相互作用，就会产生向上的大范围空气簇射 (UEAS)。这项工作使用荧光望远镜系统研究 UEAS 的可探测性，该系统可俯瞰黑暗、低反射率、距离山顶 20-50 公里的地面区域。这样的系统可以提供足够的灵敏度，以在超过 10 PeV 的能量范围内以每年十次事件的速率积累天体物理中微子信号统计数据，从而允许将中微子天文学的能量前沿扩展到 10-100 PeV 范围。山顶望远镜和冰立方二代的灵敏度对比表明，两种中微子探测方法是互补的，在低于和高于 10 PeV 的相邻能带中提供可比的性能。山顶荧光望远镜系统的灵敏度也足以发现理论上预测的宇宙中微子信号。