Possible evidence for a new particle from SN 1987A

Details Possible evidence for a new particle from SN 1987A Possible evidence for a new particle from SN 1987A

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..39.1492v&link_type=abstract

Physical Review D (Particles and Fields), Volume 39, Issue 6, 15 March 1989, pp.1492-1495

Mathematics

Probability

3

Scientific paper

The angular distribution of events from SN 1987A seen in the water Cherenkov detectors has a small probability of being due to neutrinos. The data can be explained by a new particle which interacts coherently with the oxygen nucleus, producing γ rays. In order to be consistent with the observations, and with protoneutron star dynamics, the interaction of the new particle with baryonic matter should be of the same order as, or somewhat weaker than, that of neutrinos.

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