Determining the Density of the Sun with Neutrinos

TL;DR

This paper uses solar and reactor neutrino data to estimate the Sun's density profile, confirming theoretical models and exploring neutrino properties, with future experiments expected to refine these measurements.

Contribution

It combines latest solar and reactor neutrino data to constrain the Sun's density profile and neutrino oscillation parameters, highlighting the potential of upcoming experiments.

Findings

Current data constrains the Sun's density profile.

Reactor neutrino data from JUNO will improve oscillation parameter estimates.

Future solar neutrino data from DUNE will measure hep neutrinos more precisely.

Abstract

The discovery of solar neutrinos confirmed that the inner workings of the Sun generally match our theoretical understanding of the fusion process. Solar neutrinos have also played a role in discovering that neutrinos have mass and that they oscillate. We combine the latest solar neutrino data along with other oscillation data from reactors to determine the Sun's density profile. We derive constraints given the current data and show the anticipated improvements with more reactor neutrino data from JUNO constraining the true oscillation parameters and more solar neutrino data from DUNE which should provide a crucial measurement of $hep$ neutrinos.