Detecting the Diffuse Supernova Neutrino Background with LENA

Abstract

LENA (Low Energy Neutrino Astronomy) has been proposed as a next generation 50 kt liquid scintillator detector. Its large target mass allows to search for the Diffuse Supernova Neutrino Background (DSNB), which was generated by the cumulative emissions of all core-collapse supernovae throughout the universe. Indistinguishable background from reactor and atmospheric electron antineutrinos limits the detection window to the energy range between 9.5 MeV and 25 MeV. Depending on the mean supernova neutrino energy, about 5 to 10 events per year are expected in this energy window. The background from neutral current reactions of atmospheric neutrinos surpasses the DSNB by more than one order magnitude, but can be suppressed by pulse shape discrimination. Assuming that the residual background is known with 5% uncertainty, the DSNB can be detected with 2 sigma significance after 10 years of data taking. In case that no hint for a signal is seen, current standard DSNB models would be ruled out with more than 90% C.L.

References in corpus (16)

• The GENIE Neutrino Monte Carlo Generator
• Limits and Confidence Intervals in the Presence of Nuisance Parameters
• Monte Carlo Study of Supernova Neutrino Spectra Formation
• Precise quasielastic neutrino/nucleon cross section
• Shock Breakout in Core-Collapse Supernovae and its Neutrino Signature
• A three-dimensional calculation of atmospheric neutrinos
• The Diffuse Supernova Neutrino Background is detectable in Super-Kamiokande
• The next-generation liquid-scintillator neutrino observatory LENA
• Supernova Relic Neutrino Search at Super-Kamiokande
• Relic neutrino background from cosmological supernovae
• Dynamics and neutrino signal of black hole formation in non-rotating failed supernovae. I. EOS dependence
• Search for extraterrestrial antineutrino sources with the KamLAND detector
• Neutrino-Nucleus Reaction Cross Sections for Light Element Synthesis in Supernova Explosions
• Simulations of muon-induced neutron flux at large depths underground
• Scintillation decay time and pulse shape discrimination in oxygenated and deoxygenated solutions of linear alkylbenzene for the SNO+ experiment
• Detection potential for the diffuse supernova neutrino background in the large liquid-scintillator detector LENA

Cited by in corpus (17)

• Neutrino Physics with JUNO
• Fundamental physics with the diffuse supernova background neutrinos
• Diffuse Supernova Neutrino Background from extensive core-collapse simulations of $8$-$100{\mathrm{M}}_{\odot }$ progenitors
• Neutrinos from beta processes in a presupernova: probing the isotopic evolution of a massive star
• Diffuse neutrinos from luminous and dark supernovae: prospects for upcoming detectors at the O(10) kt scale
• Constraining primordial black holes as dark matter at JUNO
• Prospects for Detecting the Diffuse Supernova Neutrino Background with JUNO
• Discovery potential for supernova relic neutrinos with slow liquid scintillator detectors
• Neutral-current background induced by atmospheric neutrinos at large liquid-scintillator detectors: I. model predictions
• Detecting the Diffuse Supernova Neutrino Background in the future Water-based Liquid Scintillator Detector Theia
• Neutrino Physics with Accelerator Driven Subcritical Reactors
• JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo
• The possibility of leptonic CP-violation measurement with JUNO
• Particle Identification at MeV Energies in JUNO
• Sensitivity to neutrino-antineutrino transitions for boron neutrinos
• Potential of octant degeneracy resolution in JUNO
• Neutrinos from Diffuse Supernova Background