Halo Modification of a Supernova Neutronization Neutrino Burst

Abstract

We give the first self-consistent calculation of the effect of the scattered neutrino halo on flavor evolution in supernovae. Our example case is an O-Ne-Mg core collapse supernova neutronization neutrino burst. We find that the addition of the halo neutrinos produces qualitative and quantitative changes in the final flavor states of neutrinos. We also find that the halo neutrinos produce a novel distortion of the neutrino flavor swap. Our results provide strong motivation for tackling the full multidimensional and composition-dependent aspects of this problem in the future.

14 pages, 13 figures, 1 table

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• Supernova Neutrino Detection
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• Neutrino scattering and flavor transformation in supernovae
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• Supernova neutrino halo and the suppression of self-induced flavor conversion
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