RES-NOVA sensitivity to core-collapse and failed core-collapse supernova neutrinos

TL;DR

RES-NOVA is a proposed cryogenic detector utilizing CEνNS to detect all neutrino flavors from supernovae across the Milky Way, capable of reconstructing supernova parameters and surveying distances less than 3 kpc.

Contribution

This paper introduces RES-NOVA, a novel detector design that enhances supernova neutrino detection sensitivity and parameter reconstruction using archaeological Pb-based cryogenic technology.

Findings

Detects supernova neutrinos via CEνNS with high sensitivity.

Capable of surveying supernovae within 3 kpc.

Provides a realistic background and sensitivity model.

Abstract

RES-NOVA is a new proposed experiment for the investigation of astrophysical neutrino sources with archaeological Pb-based cryogenic detectors. RES-NOVA will exploit Coherent Elastic neutrino-Nucleus Scattering (CE$\nu$NS) as detection channel, thus it will be equally sensitive to all neutrino flavors produced by Supernovae (SNe). RES-NOVA with only a total active volume of (60 cm)$^3$ and an energy threshold of 1 keV will probe the entire Milky Way Galaxy for (failed) core-collapse SNe with $> 3 \sigma$ detection significance. The high detector modularity makes RES-NOVA ideal also for reconstructing the main parameters (e.g. average neutrino energy, star binding energy) of SNe occurring in our vicinity, without deterioration of the detector performance caused by the high neutrino interaction rate. For the first time, distances $<3$ kpc can be surveyed, similarly to the ones where all known past galactic SNe happened. We discuss the RES-NOVA potential, accounting for a realistic setup, considering the detector geometry, modularity and background level in the region of interest. We report on the RES-NOVA background model and on the sensitivity to SN neutrinos as a function of the distance travelled by neutrinos.