Pathfinders of the Pacific Ocean Neutrino Experiment

Le résumé fourni par la source

The Pacific Ocean Neutrino Experiment (P-ONE) is a proposed neutrino telescope located off the coast of Vancouver Island, Canada. With a planned instrumented volume of over one cubic kilometer, P-ONE aims to measure high-energy neutrinos to gain further insights into astrophysical accelerators and the cosmos. However, the dynamic ocean environment presents challenges, such as changing ocean currents influencing the detector geometry and the bioluminescent light background. The P-ONE collaboration, in association with Ocean Networks Canada (ONC), is developing durable deep-sea detector systems to overcome these challenges. In 2018 and 2020, respectively, the pathfinder experiments STRAW (STRings for Absorption length in Water) and STRAW-b were deployed to characterize and monitor the optical properties and the background light caused by bioluminescence and $^{40}$K in the Cascadia Basin. These pathfinders include three strings with diverse instruments such as spectrometers, LiDARs, cameras, and early prototype optical modules. An overview of recent findings from the STRAW and STRAW-b measurements will be presented.

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