Is the LMA solar-neutrino solution ruled out by SN1987A data?
Abstract
The development of new supernova neutrino detectors relies on the expected hard energy spectrum of the numu and nutau emitted in the supernova. We show that SN1987A was sensitive to the large mixing angle (LMA) and "just so" solution to the solar neutrino problem. We review the previous analysis of the SN1987A data and propose a new analysis. The results of this analysis strongly disfavor the LMA solution, provided the numu and nutau are hard as predicted
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