Constraining Absolute Neutrino Masses via Detection of Galactic Supernova Neutrinos at JUNO

Abstract

A high-statistics measurement of the neutrinos from a galactic core-collapse supernova is extremely important for understanding the explosion mechanism, and studying the intrinsic properties of neutrinos themselves. In this paper, we explore the possibility to constrain the absolute scale of neutrino masses $m_{\nu }^{}$ via the detection of galactic supernova neutrinos at the Jiangmen Underground Neutrino Observatory (JUNO) with a 20 kiloton liquid-scintillator detector. In assumption of a nearly-degenerate neutrino mass spectrum and a normal mass ordering, the upper bound on the absolute neutrino mass is found to be $m_{\nu }^{}<(0.83\pm 0.24)\mathrm{eV}$ at the 95% confidence level for a typical galactic supernova at a distance of 10 kpc, where the mean value and standard deviation are shown to account for statistical fluctuations. For comparison, we find that the bound in the Super-Kamiokande experiment is $m_{\nu }^{}<(0.94\pm 0.28)\mathrm{eV}$ at the same confidence level. However, the upper bound will be relaxed when the model parameters characterizing the time structure of supernova neutrino fluxes are not exactly known, and when the neutrino mass ordering is inverted.

22 pages, 6 figures, more discussions on systematic uncertainties, matches the published version

References in corpus (13)

• Big-Bang Nucleosynthesis
• Observation of electron-antineutrino disappearance at Daya Bay
• Theory of Core-Collapse Supernovae
• Simulation of Coherent Non-Linear Neutrino Flavor Transformation in the Supernova Environment I: Correlated Neutrino Trajectories
• Solar neutrino measurements in Super-Kamiokande-II
• Improved Measurement of Electron Antineutrino Disappearance at Daya Bay
• Role of dense matter in collective supernova neutrino transformations
• Supernova Neutrino Light Curves and Spectra for Various Progenitor Stars: From Core Collapse to Proto-neutron Star Cooling
• Improved analysis of SN1987A antineutrino events
• Experimental Requirements to Determine the Neutrino Mass Hierarchy Using Reactor Neutrinos
• Neutrinos from Supernovae as a Trigger for Gravitational Wave Search
• Reconstructing the supernova bounce time with neutrinos in IceCube
• What is the probability that ${\theta }_{13}$ and CP violation will be discovered in future neutrino oscillation experiments?

Cited by in corpus (14)

• Getting the Most from Detection of Galactic Supernova Neutrinos in Future Large Liquid-Scintillator Detectors
• Clustering and redshift-space distortions in modified gravity models with massive neutrinos
• An absolute $\nu$ mass measurement with the DUNE experiment
• Exploiting stellar explosion induced by the QCD phase transition in large-scale neutrino detectors
• JUNO Physics and Detector
• The Yet-Unobserved Multi-Messenger Gravitational-Wave Universe
• Testing the Origins of Neutrino Mass with Supernova Neutrino Time Delay
• Probing neutrino decay scenarios by using the Earth matter effects on supernova neutrinos
• Non-conservation of Lepton Numbers in the Neutrino Sector Could Change the Prospects for Core Collapse Supernova Explosions
• Analyzing the time spectrum of supernova neutrinos to constrain their effective mass or Lorentz Invariance Violation
• Individual Neutrino Masses From a Supernova
• Status and Perspectives of Neutrino Physics
• Neutrino Oscillations in the Three Flavor Paradigm
• EstrellaNueva: an open-source software to study the interactions and detection of neutrinos emitted by supernovae