Signatures of the neutrino mass hierarchy in supernova neutrinos
arXiv:1312.4262 · doi:10.1093/ptep/ptv079
Abstract
The undetermined neutrino mass hierarchy may leave an observable imprint on the neutrino fluxes from a core-collapse supernova (SN). The interpretation of the observables, however, is subject to the uncertain SN models and the flavor conversion mechanism of neutrinos in a SN. We attempt to propose a qualitative interpretation of the expected neutrino events at terrestrial detectors, focusing on the accretion phase of the neutrino burst. The flavor conversions due to neutrino self-interaction, the MSW effect, and the Earth regeneration effect are incorporated in the calculation. It leads to several distinct scenarios that are identified by the neutrino mass hierarchies and the collective flavor transitions. Consequences resulting from the variation of incident angles and SN models are also discussed.
15 pages, 9 figures
References in corpus (7)
- Observation of electron-antineutrino disappearance at Daya Bay
- Simulation of Coherent Non-Linear Neutrino Flavor Transformation in the Supernova Environment I: Correlated Neutrino Trajectories
- Multiple Spectral Splits of Supernova Neutrinos
- Role of dense matter in collective supernova neutrino transformations
- Analysis of matter suppression in collective neutrino oscillations during the supernova accretion phase
- Low-energy spectral features of supernova (anti)neutrinos in inverted hierarchy
- Density profiles of supernova matter and determination of neutrino parameters