Reanalysis of the SN 1987 A neutrino time distributions

Details Reanalysis of the SN 1987 A neutrino time distributions Reanalysis of the SN 1987 A neutrino time distributions

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...201l..44r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 201, no. 2, Aug. 1988, p. L44-L46.

Astronomy and Astrophysics

Astrophysics

2

Neutrinos, Particle Emission, Pulsed Radiation, Statistical Distributions, Supernova 1987A, Particle Mass, Poisson Equation, Statistical Tests, Time Response

Scientific paper

The Kamiokande II and IMB neutrino time differences are reanalyzed using the Gini test for exponentiality. The hypothesis of Poissonian emission is tenable only if the neutrino pulse has been dispersed in flight. The Kamiokande II data require a dispersion corresponding to a neutrino mass of m = (13 + or - 2) eV, whereas the IMB data require m of less than 17 eV at 90 percent CL. These results are rather weakly dependent on supernova emission models.

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