Prospects for Detecting the Diffuse Supernova Neutrino Background with JUNO

Abstract

We present the detection potential for the diffuse supernova neutrino background (DSNB) at the Jiangmen Underground Neutrino Observatory (JUNO), using the inverse-beta-decay (IBD) detection channel on free protons. We employ the latest information on the DSNB flux predictions, and investigate in detail the background and its reduction for the DSNB search at JUNO. The atmospheric neutrino induced neutral current (NC) background turns out to be the most critical background, whose uncertainty is carefully evaluated from both the spread of model predictions and an envisaged \textit{in situ} measurement. We also make a careful study on the background suppression with the pulse shape discrimination (PSD) and triple coincidence (TC) cuts. With latest DSNB signal predictions, more realistic background evaluation and PSD efficiency optimization, and additional TC cut, JUNO can reach the significance of 3$\sigma$ for 3 years of data taking, and achieve better than 5$\sigma$ after 10 years for a reference DSNB model. In the pessimistic scenario of non-observation, JUNO would strongly improve the limits and exclude a significant region of the model parameter space.

arXiv comment29 pages, 11 figures, final published version in JCAP

References in corpus (47)

• Scikit-learn: Machine Learning in Python
• A Unified Approach to the Classical Statistical Analysis of Small Signals
• On the normalisation of the cosmic star formation history
• Neutrino Physics with JUNO
• Improved Predictions of Reactor Antineutrino Spectra
• The GENIE Neutrino Monte Carlo Generator
• On the determination of anti-neutrino spectra from nuclear reactors
• TMVA - Toolkit for Multivariate Data Analysis
• GADZOOKS! Antineutrino Spectroscopy with Large Water Cerenkov Detectors
• Precise quasielastic neutrino/nucleon cross section
• Hyper-Kamiokande Design Report
• Atmospheric neutrino flux calculation using the NRLMSISE00 atmospheric model
• The Diffuse Supernova Neutrino Background
• Unambiguous Determination of the Neutrino Mass Hierarchy Using Reactor Neutrinos
• The Diffuse Supernova Neutrino Background is detectable in Super-Kamiokande
• The next-generation liquid-scintillator neutrino observatory LENA
• Search for Supernova Relic Neutrinos at Super-Kamiokande
• Supernova Relic Neutrino Search at Super-Kamiokande
• Production of Radioactive Isotopes through Cosmic Muon Spallation in KamLAND
• On the rate of core collapse supernovae in the Milky Way
• Relic neutrino background from cosmological supernovae
• Theia: An advanced optical neutrino detector
• Supernova Relic Neutrino Search with Neutron Tagging at Super-Kamiokande-IV
• Search for extraterrestrial antineutrino sources with the KamLAND detector
• Predicting Neutron Production from Cosmic-ray Muons
• Cosmogenic Backgrounds in Borexino at 3800 m water-equivalent depth
• Diffuse Supernova Neutrino Background Search at Super-Kamiokande
• Sub-percent Precision Measurement of Neutrino Oscillation Parameters with JUNO
• Calibration Strategy of the JUNO Experiment
• Diffuse supernova neutrinos at underground laboratories
• Measuring the supernova unknowns at the next-generation neutrino telescopes through the diffuse neutrino background
• First Study of Neutron Tagging with a Water Cherenkov Detector
• Stellar Collapse Diversity and the Diffuse Supernova Neutrino Background
• Fundamental physics with the diffuse supernova background neutrinos
• Getting the Most from Detection of Galactic Supernova Neutrinos in Future Large Liquid-Scintillator Detectors
• Diffuse neutrinos from luminous and dark supernovae: prospects for upcoming detectors at the O(10) kt scale
• Limits on astrophysical antineutrinos with the KamLAND experiment
• Impact of binary interactions on the diffuse supernova neutrino background
• Detecting the Diffuse Supernova Neutrino Background with LENA
• Neutral-current background induced by atmospheric neutrinos at large liquid-scintillator detectors: I. model predictions
• Potential of Geo-neutrino Measurements at JUNO
• JUNO sensitivity to low energy atmospheric neutrino spectra
• Neutral-current background induced by atmospheric neutrinos at large liquid-scintillator detectors: II. Methodology for in situ measurements
• Prospects for the detection of the Diffuse Supernova Neutrino Background with the experiments SK-Gd and JUNO
• Feasibility and physics potential of detecting ${}^8$B solar neutrinos at JUNO
• Reduction of the Uncertainty in the Atmospheric Neutrino Flux Prediction Below 1 GeV Using Accurately Measured Atmospheric Muon Flux
• Low energy neutrinos from stopped muons in the Earth

Cited by in corpus (18)

• Prediction of Energy Resolution in the JUNO Experiment
• Probing high-energy solar axion flux with a large scintillation neutrino detector
• Neutrino lines from MeV dark matter annihilation and decay in JUNO
• Neutrinos from explosive transients at the dawn of multi-messenger astronomy
• Probing self-interacting sterile neutrino dark matter with the diffuse supernova neutrino background
• Diffuse Neutrino Flux Based on the Rates of Core-collapse Supernovae and Black Hole Formation Deduced from a Novel Galactic Chemical Evolution Model
• JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo
• Neutrino non-radiative decay and the diffuse supernova neutrino background
• Dark Matter Pollution in the Diffuse Supernova Neutrino Background
• Diffuse Neutrino Background from Magnetorotational Stellar Core Collapses
• Status and Prospects of the JUNO Experiment
• New Signal of Atmospheric Tau Neutrino Appearance: Sub-GeV Neutral-Current Interactions in JUNO
• Physics Prospects with MeV Neutrino-Argon Charged Current Interactions using Enhanced Photon Detection in Future LArTPCs
• Shining Light on Cosmogenic Axions with Neutrino Experiments
• Neutrinos from Diffuse Supernova Background
• New Spallation Background Rejection Techniques to Greatly Improve the Solar Neutrino Sensitivity of JUNO
• Cosmic Overture Echoed in a Stellar Final Act: Implications of Nanohertz Gravitational Waves for Core Collapse Supernova Neutrinos
• Fluorescence time profile measurement of LAB based liquid scintillator in response to medium relativistic ion particles