# Timing the Neutrino Signal of a Galactic Supernova

## TL;DR

This paper evaluates timing methods for neutrino signals from Galactic supernovae, demonstrating sub-millisecond precision with current and future detectors, enabling improved supernova localization and neutrino mass constraints.

## Contribution

It introduces and compares multiple timing techniques for supernova neutrino detection, highlighting the potential for high-precision measurements with existing and upcoming detectors.

## Key findings

- Hyper-Kamiokande and IceCube can achieve ~1 ms timing precision at 10 kpc.
- IceCube Gen2 could reach sub-millisecond timing accuracy.
- Detectors like SK and JUNO can reach ~0.1 ms precision for failed supernovae.

## Abstract

We study several methods for timing the neutrino signal of a Galactic supernova (SN) for different detectors via Monte Carlo simulations. We find that, for the methods we studied, at a distance of $10\,$kpc both Hyper-Kamiokande and IceCube can reach precisions of $\sim1\,$ms for the neutrino burst, while a potential IceCube Gen2 upgrade will reach submillisecond precision. In the case of a failed SN, we find that detectors such as SK and JUNO can reach precisions of $\sim0.1\,$ms while HK could potentially reach a resolution of $\sim 0.01\,$ms so that the impact of the black hole formation process itself becomes relevant. Two possible applications for this are the triangulation of a (failed) SN as well as the possibility to constrain neutrino masses via a time-of-flight measurement using a potential gravitational wave signal as reference.