Limits on the muon and tau neutrino masses from SN1987A

Details Limits on the muon and tau neutrino masses from SN1987A Limits on the muon and tau neutrino masses from SN1987A

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phlb..242...77g&link_type=abstract

Physics Letters B, Volume 242, Issue 1, p. 77-80.

Physics

44

Scientific paper

When neutrinos have a Dirac mass, the right-handed partner can be emitted from the supernova. We calculate the emission rate due to all the important production mechanisms, and use SN1987A data to constrain the neutrino mass. We obtain that m(νμ <= 14 keV and that either m(ντ) >= 34 MeV or m(ντ) <= 14 keV. These limits are reliable within a factor of 3.

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