Measurements of the Solar Neutrino Flux from Super-Kamiokande's First 300 Days
Y. Fukuda(The University of Tokyo), T. Hayakawa(The University of Tokyo), E. Ichihara(The University of Tokyo), K. Inoue(The University of Tokyo), K. Ishihara(The University of Tokyo), H. Ishino(The University of Tokyo), Y. Itow(The University of Tokyo), T. Kajita(The University of Tokyo), J. Kameda(The University of Tokyo), S. Kasuga(The University of Tokyo), Kazuyoshi Kobayashi(The University of Tokyo), Yoshiyuki Kobayashi(The University of Tokyo), Y. Koshio(The University of Tokyo), K. Martens(The University of Tokyo), M. Miura(The University of Tokyo), M. Nakahata(The University of Tokyo), S. Nakayama(The University of Tokyo), Atsushi Okada(The University of Tokyo), M. Oketa(The University of Tokyo), K. Okumura(The University of Tokyo), Mineto Ota(The University of Tokyo), N. Sakurai(The University of Tokyo), M. Shiozawa(The University of Tokyo), Y. Suzuki(The University of Tokyo), Y. Takeuchi(The University of Tokyo), Y. Totsuka(The University of Tokyo), S. Yamada(The University of Tokyo), M. Earl(Boston University), A. Habig(Boston University), J.T. Hong(Boston University), E. Kearns(Boston University), S. B. Kim(Boston University), M. Masuzawa(Boston University), M. D. Messier(Boston University), K. Scholberg(Boston University), J. L. Stone(Boston University), Lawrence Sulak(Boston University), C. W. Walter(Boston University), M. Goldhaber(Brookhaven National Laboratory), T. Barszczak(University of California, Irvine), W. Gajewski(University of California, Irvine), P. G. Halverson(University of California, Irvine), Jonathan Y. Hsu(University of California, Irvine), W. R. Kropp(University of California, Irvine), L. R. Price(University of California, Irvine), F. Reines(University of California, Irvine), H. W. Sobel(University of California, Irvine), M. R. Vagins(University of California, Irvine), K. S. Ganezer(California State University, Dominguez Hills), W. E. Keig(California State University, Dominguez Hills), R. W. Ellsworth(George Mason University), S. Tasaka(Gifu University), J. Flanagan(University of Hawaii System), A. Kibayashi(University of Hawaii System), J. G. Learned(University of Hawaii System), S. Matsuno(University of Hawaii System), V. J. Stenger(University of Hawaii System), D. Takemori(University of Hawaii System), T. Ishii(High Energy Accelerator Research Organization), J. Kanzaki(High Energy Accelerator Research Organization), T. Kobayashi(High Energy Accelerator Research Organization), K. Nakamura(High Energy Accelerator Research Organization), K. Nishikawa(High Energy Accelerator Research Organization), Y. Oyama(High Energy Accelerator Research Organization), Akito Sakai(High Energy Accelerator Research Organization), M. Sakuda(High Energy Accelerator Research Organization), O. Sasaki(High Energy Accelerator Research Organization), S. Echigo(Kobe University), M. Kohama(Kobe University), Y. Suzuki(Tohoku University), T. J. Haines(Los Alamos National Laboratory), E. Blaufuss(Louisiana State University), R. Sanford(Louisiana State University), R. Svoboda(Louisiana State University), M. L. Chen(University of Maryland, College Park), Z. Conner(University of Maryland, College Park), J. A. Goodman(University of Maryland, College Park), G. W. Sullivan(University of Maryland, College Park), M. Mori(Miyagi University of Education), J. Hill(State University of New York), C. K. Jung(State University of New York), C. Mauger(State University of New York), C. McGrew(State University of New York), E. Sharkey(State University of New York), B. Viren(State University of New York), C. Yanagisawa(State University of New York), W. Doki(Niigata University), T. Ishizuka(Niigata University), Y. Kitaguchi(Niigata University), Hisashi Koga(Niigata University), K. Miyano(Niigata University), H. Okazawa(Niigata University), C. Saji(Niigata University), M. Takahata(Niigata University), Akira Kusano(The University of Osaka), Y. Nagashima(The University of Osaka), M. Takita(The University of Osaka), Tomohiro Yamaguchi(The University of Osaka), M. Yoshida(The University of Osaka), Masato Eto(Tohoku University), K. Fujita(Tohoku University), T. Hasegawa(Tohoku University), T. Hasegawa(Tohoku University), S. Hatakeyama(Tohoku University), T. Iwamoto(Tohoku University), T. Kinebuchi(Tohoku University), M. Koga(Tohoku University), T. Maruyama(Tohoku University), Hiroshi Ogawa(Tohoku University), Y. Suzuki(Tohoku University), F. Tsushima(Tohoku University), M. Koshiba(The University of Tokyo), M. Nemoto(Tokai University), K. Nishijima(Tokai University), T. Futagami(Tokyo Institute of Technology), Y. Hayato(Tokyo Institute of Technology), Y. Kanaya(Tokyo Institute of Technology), K. Kaneyuki(Tokyo Institute of Technology), Y. Watanabe(Tokyo Institute of Technology), D. Kiełczewska(University of California, Irvine), R. A. Doyle(University of Washington), J. George(University of Washington), A. L. Stachyra(University of Washington), L. Wai(University of Washington), J. Wilkes(University of Washington), K. Young(University of Washington)
Cited by 767Open Access
Abstract
The first results of the solar neutrino flux measurement from Super-Kamiokande are presented. The results shown here are obtained from data taken between 31 May 1996, and 23 June 1997. Using our measurement of recoil electrons with energies above 6.5 MeV, we infer the total flux of ${}^{8}\mathrm{B}$ solar neutrinos to be $2.42\ifmmode\pm\else\textpm\fi{}0.06(\mathrm{stat}{)}_{\ensuremath{-}0.07}^{+0.10}(\mathrm{syst})\ifmmode\times\else\texttimes\fi{}{10}^{6}\mathrm{cm}{}^{\ensuremath{-}2}{\mathrm{s}}^{\ensuremath{-}1}$. This result is consistent with the Kamiokande measurement and is 36% of the flux predicted by the BP95 solar model. The flux is also measured in 1.5 month subsets and shown to be consistent with a constant rate.
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