Core-collapse supernova neutrinos and neutrino properties

TL;DR

This paper discusses how supernova neutrino observations can reveal details about supernova mechanisms, neutrino properties, and potential CP violation effects, emphasizing the importance of future measurements and detector responses.

Contribution

It explores the potential of supernova neutrino detection to uncover neutrino properties, including CP violation, and highlights the need for improved neutrino-nucleus interaction data.

Findings

Potential to learn about neutrino properties from supernova neutrino signals

Importance of future neutrino-nucleus interaction measurements

Possible effects of CP violation in supernova neutrino observations

Abstract

Core-collapse supernovae are powerful neutrino sources. The observation of a future (extra-)galactic supernova explosion or of the relic supernova neutrinos might provide important information on the supernova dynamics, on the supernova formation rate and on neutrino properties. One might learn more about unknown neutrino properties either from indirect effects in the supernova (e.g. on the explosion or on in the r-process) or from modifications of the neutrino time or energy distributions in a detector on Earth. Here we will discuss in particular possible effects of CP violation in the lepton sector. We will also mention the interest of future neutrino-nucleus interaction measurements for the precise knowledge of supernova neutrino detector response to electron neutrinos.