Acquire information about neutrino parameters by detecting supernova neutrinos

TL;DR

This paper explores how detecting supernova neutrinos can reveal neutrino properties such as mass hierarchy, mixing angles, and masses by analyzing various effects influencing neutrino detection on Earth.

Contribution

It proposes methods to determine neutrino mass hierarchy and mixing parameters through supernova neutrino detection, considering multiple physical effects.

Findings

Event number depends on neutrino mass hierarchy and mixing angles.

Methods can potentially identify neutrino mass hierarchy.

Application to current experiments demonstrates feasibility.

Abstract

We consider the supernova shock effects, the Mikheyev-Smirnov-Wolfenstein (MSW) effects, the collective effects, and the Earth matter effects in the detection of type II supernova neutrinos on the Earth. It is found that the event number of supernova neutrinos depends on the neutrino mass hierarchy, the neutrino mixing angle $\theta_{13}$, and neutrino masses. Therefore, we propose possible methods to identify the mass hierarchy and acquire information about $\theta_{13}$ and neutrino masses by detecting supernova neutrinos. We apply these methods to some current neutrino experiments.