Search for supernova relic neutrinos at Super-Kamiokande

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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 antineutrinos 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) over bar (e) cm(-2) s(-1). Additionally, an upper bound of 1.2 (nu) over bar (e) cm(-2) s(-1) was set for the supernova relic neutrino flux in the energy region E-nu >19.3 MeV.
Publisher
AMER PHYSICAL SOC
Issue Date
2003-02
Language
English
Article Type
Article
Keywords

ATMOSPHERIC NEUTRINOS; PAST SUPERNOVAE; EVOLUTION; SPECTRUM; SN1987A; BURST; FLUX; B-8

Citation

PHYSICAL REVIEW LETTERS, v.90, no.6

ISSN
0031-9007
DOI
10.1103/PhysRevLett.90.061101
URI
http://hdl.handle.net/10203/212336
Appears in Collection
PH-Journal Papers(저널논문)
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