Analysis of the SN1987A two-stage explosion hypothesis with account for the MSW neutrino flavour conversion

Details Analysis of the SN1987A two-stage explosion hypothesis with account for the MSW neutrino flavour conversion Analysis of the SN1987A two-stage explosion hypothesis with account for the MSW neutrino flavour conversion

2007-07-17

arxiv.org/abs/0707.2508v2

Rencontres de Moriond 2007: Electroweak Interactions and Unified Theories, the Gioi Publishers, p.515

Astronomy and Astrophysics

Astrophysics

presented at "Rencontres de Moriond EW 2007", 10-17 March 2007

Scientific paper

Detection of 5 events by the Liquid Scintillation Detector (LSD) on February, 23, 1987 was interpreted in the literature as the detection of neutrinos from the first stage of the two-stage supernova collapse. We pose rigid constraints on the properties of the first stage of the collapse, taking into account neutrino flavour conversion due to the MSW-effect and general properties of supernova neutrino emission. The constraints depend on the unknown neutrino mass hierarchy and mixing angle \theta_{13}.

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