Measurement of the Solar Neutrino Energy Spectrum Using Neutrino-Electron Scattering

Y Fukuda,M Earl,Y Totsuka,C W Walter,T Hasegawa,T Kobayashi,C Mcgrew,Y Nagashima,G W Sullivan,W Gajewski,Z Conner,S Matsuno,M Koshiba,K Nakamura,T Ishii,S Kasuga,M Goldhaber,Y Oyama,E Ichihara,A Habig,H Ishino,P G Halverson,T Futagami,M Etoh,K Nishijima,V J Stenger,S Echigo,N Sakurai,A Suzuki,M Shiozawa,M D Messier,J Kanzaki,Y Koshio,M L Chen,H W Sobel,B Viren,K Ishihara,J Kameda,L R Price,M Sakuda,J G Learned,A Kibayashi,R W Ellsworth,K K Young,H Okazawa,D Casper,T Maruyama,F Reines,C K Jung,J Shirai,Y Hayato,W E Keig,J L Stone,T Kajita,T Barszczak,R Sanford,Y Takeuchi,F Tsushima,W Doki,E Sharkey,A L Stachyra,K Martens,D Takemori,K Inoue,Y Itow,K Okumura,T J Haines,S Mine,S Nakayama,R Svoboda,K Kaneyuki,K Nishikawa,M Koga,C Saji,S Tasaka,E Kearns,R A Doyle,M Takita,K Scholberg,M Smy,M R Vagins,R J Wilkes,M Nakahata,K S Ganezer,J A Goodman,C Mauger,Y Watanabe,E Blaufuss,K Miyano,W R Kropp,Y Suzuki,C Yanagisawa,K Fujita,O Sasaki,M Kohama,J Hill,B K Kim,S Hatakeyama,M Takahata,S B Kim,D Kiełczewska ,Shoichi Yamada ,Hiroshi Ogawa ,L Wai ,Toshiyuki Iwamoto ,Jimin George ,Kazuyoshi Kobayashi ,Tomohiro Yamaguchi ,Atsushi Okada ,L Sulak ,Tomokatsu Hayakawa ,Akito Sakai ,Makoto Miura ,Yoshio Kanaya ,Mariko Nemoto ,Yoshiyuki Kobayashi ,J Flanagan ,Jonathan Y Hsu ,Masato Yoshida

doi:10.1103/physrevlett.82.2430

Measurement of the Solar Neutrino Energy Spectrum Using Neutrino-Electron Scattering

Y Fukuda, M Earl + Show 117 more

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https://doi.org/10.1103/physrevlett.82.2430

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#Energy Spectrum Of Recoil Electrons #Kamiokande Detector + Show 8 more

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Abstract

A measurement of the energy spectrum of recoil electrons from solar neutrino scattering in the Super--Kamiokande detector is presented. The results shown here are obtained from 504 days of data taken between the 31st of May, 1996 and the 25th of March, 1998. The shape of the measured spectrum is compared with the expectation for solar B8 neutrinos. The comparison takes into account both kinematic and detector related effects in the measurement process. The spectral shape comparison between the observation and the expectation gives a chi-square of 25.3 with 15 degrees of freedom, corresponding to a 4.6% confidence level.

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