Limits on the neutrino magnetic moment from SN 1987A

Details Limits on the neutrino magnetic moment from SN 1987A Limits on the neutrino magnetic moment from SN 1987A

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvl..61...23l&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 61, July 4, 1988, p. 23-26.

Astronomy and Astrophysics

Astrophysics

139

Magnetic Moments, Neutrinos, Neutron Stars, Supernova 1987A, Big Bang Cosmology, Gravitational Collapse, Handedness, Solar Neutrinos

Scientific paper

A neutrino magnetic moment greater than 10 to the -12th times mu(B), the Bohr magneton, would have important implications for gravitational-collapse supernovae. Also,it has been suggested that mu/mu(B) of about 10 to the -10th might solve the solar neutrino problem. However, it is shown that the neutrino observations of SN 1987A and general optical observations of supernovae set a firm upper limit of mu/mu(B) less than 5 x 10 to the -13th. This limit is about 100 times better than the best experimental determination and previous astrophysical limits, and 10-20 times better than a previous limit based on big-bang nucleosynthesis.

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