Type-II Supernovae and Neutrino Magnetic Moment

Abstract

The present solar and atmospheric neutrino data together with the LSND results and the presence of hot dark matter (HDM) suggest the existence of a sterile neutrino at the eV scale. We have reanalysed the effect of resonant {\sl sterile} neutrino conversions induced by neutrino magnetic moments in a type-II supernova. We analyse the implications of ${\nu }_e-{\nu }_s$ and ${\bar{\nu }}_e-{\bar{\nu }}_s$ (${\nu }_s$ denotes sterile neutrino) conversions for the supernova shock re-heating, the detected ${\bar{\nu }}_e$ signal from SN1987A and the $r$-process nucleosynthesis hypothesis. Using reasonable magnetic field profiles we determine the sensitivity of these three arguments to the relevant neutrino parameters, i.e. the value of the transition magnetic moment and the ${\nu }_e-{\nu }_s$ mass difference $\Delta m^2\equiv \Delta m_{LSND/HDM}^2$

11 pages, 5 figures, latex file, final version, references added

References in corpus (8)

• Evidence for oscillation of atmospheric neutrinos
• Measurement of a small atmospheric ${\nu }_{\mu }/{\nu }_e$ ratio
• Study of the atmospheric neutrino flux in the multi-GeV energy range
• Non-adiabatic Level Crossing in Resonant Neutrino Oscillations
• Extracting Primordial Density Fluctuations
• Neutrino Mass Spectrum with ${\nu }_{\mu }$ $\to$ ${\nu }_s$ Oscillations of Atmospheric Neutrinos
• Four-Way Neutrino Oscillations
• A four-neutrino mixing scheme for observed neutrino data

Cited by in corpus (19)

• What can be learned from a future supernova neutrino detection?
• The Simplest Resonant Spin--Flavour Solution to the Solar Neutrino Problem
• Ultra-High Energy Cosmic Rays from Neutrino Emitting Acceleration Sources?
• Supernova prompt neutronization neutrinos and neutrino magnetic moments
• Nonstandard Neutrino Interactions in Supernovae
• Appearance of neutronization peak and decaying supernova neutrinos
• Exploiting a future galactic supernova to probe neutrino magnetic moments
• Resonant spin-flavor conversion of supernova neutrinos: Dependence on presupernova models and future prospects
• Three-generation study of neutrino spin-flavor conversion in supernova and implication for neutrino magnetic moment
• A comprehensive study of neutrino spin-flavour conversion in supernovae and the neutrino mass hierarchy
• Prospects for Neutrino Spin Coherence in Supernovae
• Oscillations of Dirac and Majorana neutrinos in matter and a magnetic field
• Neutrino Electromagnetic Form Factor and Oscillation Effects on Neutrino Interaction With Dense Matter
• Non-Standard Interactions of Supernova Neutrinos and Mass Ordering Ambiguity at DUNE
• Solar neutrino problem accounting for self-consistent magnetohydrodynamics solution for solar magnetic fields
• Quantum coherence in neutrino spin-flavor oscillations
• Resonant Spin-Flavor Precession of Sterile Neutrinos
• Probing Physics at Extreme Energies with Cosmic Ultra-High Energy Radiation
• Tests of physics beyond the Standard Model with future low energy neutrino experiments