Acoustic detection of neutrinos in bedrock
Abstract
We propose to utilize bedrock as a medium for acoustic detection of particle showers following interactions of ultra-high energy neutrinos. With the density of rock three-times larger and the speed of sound four-times larger compared to water, the amplitude of the generated bipolar pressure pulse in rock should be larger by an order of magnitude. Our preliminary simulations confirm that prediction. Higher density of rock also guarantees higher interaction rate for neutrinos. A noticeably longer attenuation length in rock reduces signal dissipation. The Pyh\"asalmi mine has a unique infrastructure and rock conditions to test this idea and, if successful, extend it to a full-size experiment.
Keywords
Cite
@article{arxiv.1909.00417,
title = {Acoustic detection of neutrinos in bedrock},
author = {Wladyslaw Henryk Trzaska and Kai Loo and Timo Enqvist and Jari Joutsenvaara and Pasi Kuusiniemi and Maciej Slupecki},
journal= {arXiv preprint arXiv:1909.00417},
year = {2019}
}
Comments
6 pages, 4 figures, proceedings of workshop: ARENA 2018 - Acoustic and Radio EeV Neutrino Detection Activities