Supernovae as laboratories for neutrino properties

TL;DR

This paper investigates how supernova neutrinos can be used to study neutrino properties, focusing on non-standard interactions and the impact of neutrino backgrounds on their propagation.

Contribution

It provides a comprehensive analysis of supernova neutrino propagation considering recent background effects and explores non-standard neutrino interactions in terrestrial experiments.

Findings

Neutrino background significantly affects supernova neutrino evolution.

Non-standard neutrino interactions can alter observable signals.

Analysis enhances understanding of neutrino behavior in astrophysical environments.

Abstract

The present thesis aims to be an analysis of various aspects of neutrino phenomenology in two different scenarios. On the one hand, we address the study of non-standard neutrino interactions (NSI) in accelerator and reactor terrestrial experiments. On the other hand, we discuss the propagation of supernova (SN) neutrinos, taking into account the recent developments showing the importance that neutrino background may have in their evolution. This effect, neglected for a long time, may be of capital importance when trying to understand the neutrino signal from a future galactic SN. Our SN neutrino analysis is presented both in absence and presence of NSI.