Search for supernova relic neutrinos at Super-Kamiokande

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....

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Veröffentlicht in:	Physical review letters 2003-02, Vol.90 (6), p.061101-061101, Article 061101
Hauptverfasser:	Malek, M, Morii, M, Fukuda, S, Fukuda, Y, Ishitsuka, M, Itow, Y, Kajita, T, Kameda, J, Kaneyuki, K, Kobayashi, K, Koshio, Y, Miura, M, Moriyama, S, Nakahata, M, Nakayama, S, Namba, T, Okada, A, Ooyabu, T, Saji, C, Sakurai, N, Shiozawa, M, Suzuki, Y, Takeuchi, H, Takeuchi, Y, Totsuka, Y, Yamada, S, Desai, S, Earl, M, Kearns, E, Messier, M D, Stone, J L, Sulak, L R, Walter, C W, Goldhaber, M, Barszczak, T, Casper, D, Gajewski, W, Kropp, W R, Mine, S, Liu, D W, Smy, M B, Sobel, H W, Vagins, M R, Gago, A, Ganezer, K S, Keig, W E, Ellsworth, R W, Tasaka, S, Kibayashi, A, Learned, J G, Matsuno, S, Takemori, D, Hayato, Y, Ishii, T, Kobayashi, T, Maruyama, T, Nakamura, K, Obayashi, Y, Oyama, Y, Sakuda, M, Yoshida, M, Kohama, M, Iwashita, T, Suzuki, A T, Ichikawa, A, Inagaki, T, Kato, I, Nakaya, T, Nishikawa, K, Haines, T J, Dazeley, S, Hatakeyama, S, Svoboda, R, Blaufuss, E, Goodman, J A, Guillian, G, Sullivan, G W, Turcan, D, Scholberg, K, Habig, A, Ackermann, M, Hill, J, Jung, C K, Martens, K, Mauger, C, McGrew, C, Sharkey, E, Viren, B, Yanagisawa, C, Toshito, T, Mitsuda, C, Miyano, K, Shibata, T, Kajiyama, Y, Nagashima, Y, Nitta, K, Takita, M, Kim, H I, Kim, S B, Yoo, J
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Sprache:	eng
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Zusammenfassung:	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 macro nu(e) cm(-2) s(-1). Additionally, an upper bound of 1.2 macro nu(e) cm(-2) s(-1) was set for the supernova relic neutrino flux in the energy region E(nu)>19.3 MeV.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.90.061101