Solar B-8 and hep neutrino measurements from 1258 days of Super-Kamiokandedata

Authors
Fukuda, S Fukuda, Y Ishitsuka, M Itow, Y Kajita, T Kameda, J Kaneyuki, K Kobayashi, K Miura, M Moriyama, S Nakahata, M Nakayama, S Okada, A Sakurai, N Shiozawa, M Suzuki, Y Takeuchi, H Takeuchi, Y Toshito, T Totsuka, Y Yamada, S Desai, S Earl, M Kearns, E Messier, MD Scholberg, K Stone, JL Sulak, LR Walter, CW Goldhaber, M Barszczak, T Casper, D Gajewski, W Kropp, WR Mine, S Liu, DW Price, LR Smy, MB Sobel, HW Vagins, MR Ganezer, KS Keig, WE Ellsworth, RW Tasaka, S Kibayashi, A Learned, JG Matsuno, S Takemori, D Hayato, Y Ishii, T Kobayashi, T Nakamura, K Obayashi, Y Oyama, Y Sakai, A Sakuda, M Kohama, M Suzuki, AT Inagaki, T Nakaya, T Nishikawa, K Haines, TJ Blaufuss, E Dazeley, S Lee, KB Svoboda, R Goodman, JA Guillian, G Sullivan, GW Turcan, D Habig, A Hill, J Jung, CK Martens, K Malek, M Mauger, C McGrew, C Sharkey, E Viren, B Yanagisawa, C Mitsuda, C Miyano, K Saji, C Shibata, T Kajiyama, Y Nagashima, Y Nitta, K Takita, M Yoshida, M Kim, HI Kim, SB Yoo, J Okazawa, H Ishizuka, T Etoh, M Gando, Y Hasegawa, T Inoue, K Ishihara, K Maruyama, T Shirai, J Suzuki, A Koshiba, M Hatakeyama, Y Ichikawa, Y Koike, M Nishijima, K Fujiyasu, H Ishino, H Morii, M Watanabe, Y Golebiewska, U Kielczewska, D Boyd, SC Stachyra, AL Wilkes, RJ Young, KK
Citation
S. Fukuda et al., Solar B-8 and hep neutrino measurements from 1258 days of Super-Kamiokandedata, PHYS REV L, 86(25), 2001, pp. 5651-5655
Citations number
23
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
25
Year of publication
2001
Pages
5651 - 5655
Database
ISI
SICI code
0031-9007(20010618)86:25<5651:SBAHNM>2.0.ZU;2-D
Abstract
Solar neutrino measurements from 1258 days of data from the Super-Kamiokand e detector are presented. The measurements are based on recoil electrons in the energy range 5.0-20.0 MeV. The measured solar neutrino flux is 2.32 +/ - 0.03(stat)(+0.08)(-0.07) (syst) x 10(6) cm(-2) s(-1) which is 45.1 +/- 0. 5 (stat)(+1.6)(-1.4)(syst)% of that predicted by the BP2000 SSM. The day vs nieht flux asymmetry (Phi (n) - Phi (d)) / Phi (average) is 0.033 +/- 0.02 2(stat)(+0.013)(-0.012)(syst). The recoil electron energy spectrum is consi stent with no spectral distortion. For the hep neutrino flux, we set a 90% C.L. upper limit of 40 x 10(3) cm(-2) s(-1) which is 4.3 times the BP2000 S SM prediction.