Supernova neutrino fluxes from the LSD neutrino signal from SN1987A
نویسنده
چکیده
Detection of 5 events by the Liquid Scintillation Detector (LSD) on February, 23, 1987 was recently interpreted as a detection of the electron neutrino flux from the first stage of the two-stage Supernova collapse [1][2]. We show that, if neutrino mass hierarchy is normal, such interpretation excludes values of neutrino mixing angle θ13 larger than 3 · 10 , independently of the particular Supernova collapse model. Also constraints on the original fluxes of neutrinos and antineutrinos of different flavours are obtained. PACS-2006: 14.60.Pq; 26.50.+x.
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