Supernova neutrino oscillations: Adiabaticity improvement by Majoron fields

Abstract

If the lepton numbers are associated with global symmetries spontaneously broken at a scale below 1 TeV, neutrino oscillations in supernovae produce classic Majoron fields that perturb the neutrino propagation itself and may change the oscillation patterns in the periods of largest $\nu$ fluxes. The impact of the Majoron fields on the same transitions as ${\nu }_e\to {\nu }_X$ that presumably occur in the Sun is studied in the case of the non-adiabatic MSW solution. It is shown how the back reaction of the Majoron fields may improve the adiabaticity of these oscillations in a supernova environment which has implications on the outgoing ${\nu }_e$ spectrum.

12 pages, RevTeX, 3 figures (.eps files). Some changes in section 2, References added, accepted in September for publication in PRD1

References in corpus (6)

• Initial Results from the CHOOZ Long Baseline Reactor Neutrino Oscillation Experiment
• Evidence for nu_mu -> nu_e Neutrino Oscillations from LSND
• Non-adiabatic Level Crossing in Resonant Neutrino Oscillations
• Evidence for nu_mu -> nu_e Oscillations from Pion Decay in Flight Neutrinos
• Solutions to Solar Neutrino Anomaly
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Cited by in corpus (2)

• Blocking Active-Sterile Neutrino Oscillations in the Early Universe with a Majoron Field
• Classical Nambu-Goldstone fields