Conversions of propagation eigenstates of supernova neutrinos by atomic electrons

Motohiko Kusakabe

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arXiv · 2109.11942

Conversions of propagation eigenstates of supernova neutrinos by atomic electrons

Motohiko Kusakabe

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Abstract

Electron number densities in stars and the Earth are inhomogeneous because of atomic electrons. The large inhomogeneities on atomic-scale tend to form at tops of respective layers of stars, and 1s electrons of O locally produce weak potentials higher than that of the high MSW resonance. Then, supernova neutrinos experience vast numbers of non-adiabatic transitions. This inhomogeneous electron potential generates finite amplitudes of all three propagation eigenstates, and wave packets effectively separate. Then, spectral differences between three flavors significantly diminishes after propagation.

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Motohiko Kusakabe. 2021-09-24. Conversions of propagation eigenstates of supernova neutrinos by atomic electrons. https://arxiv.org/abs/2109.11942

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