Untangling supernova-neutrino oscillations with beta-beam data

TL;DR

This paper proposes using beta-beam neutrino experiments to analyze supernova neutrino signals, aiming to disentangle multiple neutrino spectra to better understand supernova mechanisms and nucleosynthesis.

Contribution

It introduces a novel method utilizing low-energy beta-beam data to untangle supernova neutrino spectra, enhancing analysis of supernova mechanisms.

Findings

Effective method for separating supernova neutrino spectra.

Multiple beam energies improve spectral analysis.

Detector configurations influence measurement accuracy.

Abstract

Recently, we suggested that low-energy beta-beam neutrinos can be very useful for the study of supernova neutrino interactions. In this paper, we examine the use of a such experiment for the analysis of a supernova neutrino signal. Since supernova neutrinos are oscillating, it is very likely that the terrestrial spectrum of supernova neutrinos of a given flavor will not be the same as the energy distribution with which these neutrinos were first emitted. We demonstrate the efficacy of the proposed method for untangling multiple neutrino spectra. This is an essential feature of any model aiming at gaining information about the supernova mechanism, probing proto-neutron star physics, and understanding supernova nucleosynthesis, such as the neutrino process and the r-process. We also consider the efficacy of different experimental approaches including measurements at multiple beam energies and detector configurations.