Electron Neutrino Mass Measurement by Supernova Neutrino Bursts and Implications on Hot Dark Matter

Abstract

We present a new strategy for measuring the electron neutrino mass ($\mnue$) by future detection of a Galactic supernova in large underground detectors such as the Super-Kamiokande (SK). This method is nearly model-independent and one can get a mass constraint in a straightforward way from experimental data without specifying any model parameters for profiles of supernova neutrinos. We have tested this method using virtual data generated from a numerical model of supernova neutrino emission by realistic Monte-Carlo simulations of the SK detection. It is shown that this method is sensitive to $\mnue$ of $\sim$ 3 eV for a Galactic supernova, and this range is as low as the prediction of the cold+hot dark matter scenario with a nearly degenerate mass hierarchy of neutrinos, which is consistent with the current observations of solar and atmospheric neutrino anomalies and density fluctuations in the universe.

4 pages including 1 figure, accepted by Phys. Rev. Lett

Cited by in corpus (22)

• Particle Physics from Stars
• Search for Supernova Neutrino Bursts at Super-Kamiokande
• Absolute Values of Neutrino Masses: Status and Prospects
• Prospects for Detecting Supernova Neutrino Flavor Oscillations
• Effects of Neutrino Oscillation on the Supernova Neutrino Spectrum
• Technique for Direct eV-Scale Measurements of the Mu and Tau Neutrino Masses Using Supernova Neutrinos
• Detectability of thermal neutrinos from binary-neutron-star mergers and implication to neutrino physics
• Impact of sterile neutrinos on the early time flux from a galactic supernova
• Gravity Wave and Neutrino Bursts from Stellar Collapse: A Sensitive Test of Neutrino Masses
• Physics with Supernovae
• Constraining the absolute neutrino mass scale and Majorana CP violating phases by future neutrinoless double beta decay experiments
• Supernova Neutrino Detection
• Neutrino Masses in Astroparticle Physics
• Exploring the sub-eV neutrino mass range with supernova neutrinos
• Particle Dark Matter Physics: An Update
• Constraints on neutrino masses from a Galactic supernova neutrino signal at present and future detectors
• Supernova neutrino observations: What can we learn?
• Astrophysical and Cosmological Neutrinos
• New Variables For Neutrino Oscillation Diagnostics at Superkamiokande and the Sudbury Neutrino Observatory
• Evaluation of Gadolinium's Action on Water Cherenkov Detector Systems with EGADS
• Prospects for Neutrino Observation and Mass Measurement from Binary Neutron Star Mergers
• Oscillation Effects On Neutrinos From The Early Phase Of a Nearby Supernova