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Bounds on Exotic Particle Interactions from SN 1987a

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DOI: 10.1103/PhysRevLett.60.1793
OAI: oai:inspirehep.net:251393
Source
INSPIRE-HEP
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Abstract

The observation of a neutrino pulse from the supernova SN1987A constrains the production of light exotic particles in the proto neutron star. We derive a new bound on the axion decay constant, fa≳1010 GeV. If right-handed (RH) neutrinos exist, the ‘‘RH Fermi constant’’ is GRH≲10−4GF, 2 orders of magnitude below laboratory bounds. The Dirac mass of νμ can be constrained below laboratory limits.

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