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arXiv · 1109.2667

Supernova neutrino signals by liquid Argon detector and neutrino magnetic moment

Takashi Yoshida·Akira Takamura·Keiichi Kimura·Shio Kawagoe·Toshitaka Kajino·Hidekazu Yokomakura
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Abstract

We study electron-neutrino and electron-antineutrino signals from a supernova with strong magnetic field detected by a 100 kton liquid Ar detector. The change of neutrino flavors by resonant spin-flavor conversions, matter effects, and neutrino self-interactions are taken into account. Different neutrino signals, characterized by neutronization burst event and the total event numbers of electron-neutrinos and electron-antineutrinos, are expected with different neutrino oscillation parameters and neutrino magnetic moment. Observations of supernova neutrino signals by a 100 kton liquid Ar detector would constrain oscillation parameters as well as neutrino magnetic moment in either normal and inverted mass hierarchies.

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Takashi Yoshida, Akira Takamura, Keiichi Kimura, Shio Kawagoe, Toshitaka Kajino, Hidekazu Yokomakura. 2011-09-13. Supernova neutrino signals by liquid Argon detector and neutrino magnetic moment. https://doi.org/10.1016/j.physletb.2011.09.041

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