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Constraints on Dirac Neutrinos from SN 1987A

R. Mayle·D. N. Schramm·M. S. Turner·J. Wilson
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Abstract

The Livermore Supernova Explosion Code was used to calculate the effect of a massive Dirac neutrino on neutrino emission from SN 1987A in a fully self-consistent manner. Spin-flip interactions lead to the copious emission of sterile, right-handed neutrinos and cool the core faster than the observed neutrino emission time for Dirac masses exceeding about 3$\,$keV. This limit is relaxed to $7\,$keV if pion emission processes in the core are neglected. These limits are compared with the previous less stringent limits of Burrows et al.

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R. Mayle, D. N. Schramm, M. S. Turner, J. Wilson. 1993-01-13. Constraints on Dirac Neutrinos from SN 1987A. https://doi.org/10.1016/0370-2693(93)91580-g

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