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Detection of ultra high energy neutrinos with an underwater very large volume array of acoustic sensors: A simulation study

Timo Karg
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Abstract

This thesis investigates the detection of ultra high energy (E > 1 EeV) cosmic neutrinos using acoustic sensors immersed in water. The method is based on the thermoacoustic model describing the production of microsecond bipolar acoustic pulses by neutrino-induced particle cascades. These cascades locally heat the medium which leads to rapid expansion and a short sonic pulse detectable in water with hydrophones over distances of several kilometres. This makes acoustic detection an approach complementary to todays optical Cerenkov and radio Cerenkov detectors, and could help to reduce the respective systematic uncertainties. In this work a complete simulation / reconstruction chain for a submarine acoustic neutrino telescope is developed, and the sensitivity of such a detector to a diffuse flux of ultra highenergy cosmic neutrinos is estimated.

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Timo Karg. 2006-08-15. Detection of ultra high energy neutrinos with an underwater very large volume array of acoustic sensors: A simulation study. https://arxiv.org/abs/astro-ph/0608312

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