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arXiv · 2508.14743

A water Cherenkov detector prototype for future high-energy tau-neutrino experiment

Monong Yu·Yiren Chen·Lei Wang·Shiping Zhao·Xingyu Li·Qiang Yuan·Yi Zhang·Guang Yang
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Abstract

The detection of high-energy tau neutrinos remains a critical challenge in neutrino astronomy, limited by inadequate angular resolution and sensitivity in current detectors like IceCube and KM3NeT. We present a modular water Cherenkov detector prototype optimized for tau-neutrino-induced extensive air showers (EAS) in the 1-100 PeV range, leveraging canyon terrain for natural cosmic-ray shielding. Laboratory validation demonstrates this prototype design has high detection efficiency (>99%) and timing resolution (<2 ns) on MIP particles, enabling precise tau-neutrino-induced EAS reconstruction for future study. The results establish a foundation of a low-cost, scalable neutrino observatory, advancing flavor ratio measurements and cosmic-ray origin problems.

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Monong Yu, Yiren Chen, Lei Wang, Shiping Zhao, Xingyu Li, Qiang Yuan, Yi Zhang, Guang Yang. 2025-08-20. A water Cherenkov detector prototype for future high-energy tau-neutrino experiment. https://arxiv.org/abs/2508.14743

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