Implications of the triplet-Majoron model for the supernova SN1987A

Y. Aharonov, F. T. Avignone, S. Nussinov

Research output: Contribution to journalArticlepeer-review


We address several possible implications of the triplet-Majoron (TM) model for supernova physics, such as cooling and rapid deleptonization. We find that recent observations of the neutrinos from SN1987A are consistent with the TM model even if the ee-Majoron coupling constant is gee0.7×10-3 suggested by a recent -decay experiment. We find specifically that deleptonization via ee0, followed by conversion to 0, is unlikely to be important for this value of gee; however, if geegg, neutrino species equilibration via ee and ee is likely to occur on a time scale of 10-4 sec. Rapid equilibration, followed by decay in flight via ()e+0, can dramatically enhance the chance of observing neutronization neutrinos, even for ge2 and ge210-18. This last effect might be detected in nearby supernovas.

Original languageEnglish
Pages (from-to)1360-1367
Number of pages8
JournalPhysical review D
Issue number6
StatePublished - 1988


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