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arXiv · 2102.01755

Measuring solar neutrinos over Gigayear timescales with Paleo Detectors

Natalia Tapia Arellano·Shunsaku Horiuchi
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Abstract

Measuring the solar neutrino flux over gigayear timescales could provide a new window to inform the Solar Standard Model as well as studies of the Earth's long-term climate. We demonstrate the feasibility of measuring the time-evolution of the $^8$B solar neutrino flux over gigayear timescales using paleo detectors, naturally occurring minerals which record neutrino-induced recoil tracks over geological times. We explore suitable minerals and identify track lengths of 15--30 nm to be a practical window to detect the $^8$B solar neutrino flux. A collection of ultra-radiopure minerals of different ages, each some 0.1 kg by mass, can be used to probe the rise of the $^8$B solar neutrino flux over the recent gigayear of the Sun's evolution. We also show that models of the solar abundance problem can be distinguished based on the time-integrated tracks induced by the $^8$B solar neutrino flux.

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Natalia Tapia Arellano, Shunsaku Horiuchi. 2021-02-02. Measuring solar neutrinos over Gigayear timescales with Paleo Detectors. https://doi.org/10.1103/physrevd.103.123016

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