Extraterrestrial Solar Neutrino Physics

TL;DR

This paper proposes extraterrestrial solar neutrino physics (etSNP) as a novel approach to studying solar neutrino oscillations outside Earth, utilizing satellite detectors, eclipses, and planetary geology to explore neutrino properties.

Contribution

It introduces the concept of etSNP, highlighting unique experimental setups like satellite detectors and planetary geology analysis to investigate solar neutrino oscillations beyond Earth.

Findings

Proposes satellite-based neutrino detection around Earth and other planets.

Suggests using solar eclipses to study matter-enhanced neutrino oscillations.

Highlights the potential of planetary geology analysis for neutrino research.

Abstract

We advocate the extraterrestrial solar neutrino physics (etSNP) as a means of investigating solar neutrino physics (SNP). As we already know, the dominant and subdominant (vacuum) oscillation lengths would be approximately one kilometer and one hundred kilometers. On the other hand, we know so far that the matter-enhanced oscillations take place only in the core of the Sun. Thus, the etSNP, i.e. solar neutrino physics that could be extracted outside the Earth, would assume a special unique role. The etSNP experiments include (1) a satellite (detector) around the Earth or around the Jupiter or others (to provide the shadow, for the matter-enhanced neutrino oscillations), (2) during the Sun-Venus-Earth eclipse or similar, and (3) the chemical compositions of the geology type (as in the Jupiter or in the Venus, to study the origins of these planets). To be specific, we note that the reactions induced by the ^8B solar neutrinos, in view of the sole high energy nature (E_\nu^{max}=14.03 MeV), would be most interesting in the solar environment. Moreover, the experiments such as the chemical compositions of the geology type (on the Venus or Jupiter) and the matter-enhanced oscillations when the Sun-Venus-Earth eclipse, or the Sun-Mercury-Earth eclipse, may also be interesting.