A Search for Neutrinos Accompanied with Gamma-Ray Bursts

Details A Search for Neutrinos Accompanied with Gamma-Ray Bursts A Search for Neutrinos Accompanied with Gamma-Ray Bursts

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999stin...0092463n&link_type=abstract

Proceedings of the School of Science of Tokai University, vol. 34, p. 49

Physics

Neutrinos, Gamma Ray Bursts, Particle Energy, Gamma Ray Observatory, Time Dependence, Nuclear Binding Energy

Scientific paper

Time correlation between low energy neutrino events observed in Kamiokande and gamma-ray bursts detected by BATSE is analyzed. No significant excess of neutrino events correlated with gamma-ray bursts is found for the neutrino energy range from 7 MeV to 20 MeV. From the number of neutrino events during twelve minutes time window between two minutes before and ten minutes after the start of the gamma-ray burst, we calculate the upper limit of the flux of anti electron neutrinos. Assuming the average energy of neutrinos are 7 MeV, 10 MeV and 20 MeV, obtained 90% C. L. upper limits are 5.2 x l05/sq cm sec, 2.6 x l0(exxp 5)/sq cm sec and 6.4 x l04/sq cm sec, respectively. Flux upper limits per gamma-ray burst with 90% C. L. are also obtained, which are 3.6 x 108/sq cm burst, 1.8 x l08/sq cm burst, 4.4 x 107/sq cm burst for 7 MeV, 10 MeV and 20 MeV, respectively.

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