Constraints on Dirac Neutrinos from SN 1987A

Preprint

13 January 1993

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/9301005

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.

Keywords

LIVERMORE SUPERNOVA
NEUTRINO EMISSION
DIRAC NEUTRINO
SN 1987A
HANDED
KEV

All Related Versions

Version 1, 1993-01-13, ArXiv
Published version: Physics Letters B, 317 (1-2), 119.

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