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. 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.
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, MD; Stone, JL; Sulak, LR; Walter, CW; Goldhaber, M; Barszczak, T; Casper, D; Gajewski, W; Kropp, WR; Mine, S; Liu, DW; Smy, MB; Sobel, HW; Vagins, MR; Gago, A; Ganezer, KS; Keig, WE; Ellsworth, RW; Tasaka, S; Kibayashi, A; Learned, JG; 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, AT; Ichikawa, A; Inagaki, T; Kato, I; Nakaya, T; Nishikawa, K; Haines, TJ; Dazeley, S; Hatakeyama, S; Svoboda, R; Blaufuss, E; Goodman, JA; Guillian, G; Sullivan, GW; Turcan, D; Scholberg, K; Habig, A; Ackermann, M; Hill, J; Jung, CK; 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, HI; Kim, SB; Yoo, J; Okazawa, H; Ishizuka, T; Etoh, M; Gando, Y; Hasegawa, T; Inoue, K; Ishihara, K; Shirai, J; Suzuki, A; Koshiba, M; Hatakeyama, Y; Ichikawa, Y; Koike, M; Nishijima, K; Ishino, H; Nishimura, R; Watanabe, Y; Kielczewska, D; Berns, HG; Boyd, SC; Stachyra, AL; Wilkes, RJ; Super-Kamiokande Collaboration,
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