Search for Supernova Relic Neutrinos at Super-Kamiokande

Details Search for Supernova Relic Neutrinos at Super-Kamiokande Search for Supernova Relic Neutrinos at Super-Kamiokande

2002-09-15

arxiv.org/abs/hep-ex/0209028v2

Phys.Rev.Lett.90:061101,2003

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 2 figures. Submitted to Physical Review Letters. New version includes corrections to Figure 1. Also, text has been sh

Scientific paper

10.1103/PhysRevLett.90.061101

A search for the relic neutrinos from all past core-collapse supernovae was conducted using 1496 days of data from the Super-Kamiokande detector. This analysis looked for electron-type anti-neutrinos that had produced a positron with an energy greater than 18 MeV. In the absence of a signal, 90% C.L. upper limits on the total flux were set for several theoretical models; these limits ranged from 20 to 130 nu_e bar cm^-2 s^-1. Additionally, an upper bound of 1.2 nu_e bar cm^-2 s^-1 was set for the supernova relic neutrino flux in the energy region E_nu > 19.3 MeV.

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