Results from one thousand days of real-time, directional solar-neutrino data

K. S. Hirata; K. Inoue; T. Kajita; T. Kifune; K. Kihara; M. Nakahata; K. Nakamura; S. Ohara; N. Sato; Y. Suzuki; Y. Totsuka; Y. Yaginuma; M. Mori; Y. Oyama; A. Suzuki; K. Takahashi; M. Yamada; M. Koshiba; T. Suda; T. Tajima; K. Miyano; H. Miyata; H. Takei; Y. Fukuda; E. Kodera; Y. Nagashima; M. Takita; K. Kaneyuki; T. Tanimori; E. W. Beier; L. R. Feldscher; E. D. Frank; W. Frati; S. B. Kim; A. K. Mann; F. M. Newcomer; R. Van Berg; W. Zhang

doi:10.1103/PhysRevLett.65.1297

Results from one thousand days of real-time, directional solar-neutrino data

K. S. Hirata, K. Inoue, T. Kajita, T. Kifune, K. Kihara, M. Nakahata, K. Nakamura, S. Ohara, N. Sato, Y. Suzuki, Y. Totsuka, Y. Yaginuma, M. Mori, Y. Oyama, A. Suzuki, K. Takahashi, M. Yamada, M. Koshiba, T. Suda, T. TajimaK. Miyano, H. Miyata, H. Takei, Y. Fukuda, E. Kodera, Y. Nagashima, M. Takita, K. Kaneyuki, T. Tanimori, E. W. Beier, L. R. Feldscher, E. D. Frank, W. Frati, S. B. Kim, A. K. Mann, F. M. Newcomer, R. Van Berg, W. Zhang

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Abstract

A data sample of 1040 days from the Kamiokande II detector, consisting of subsamples of 450 days at electron-energy threshold 9.3 MeV and 590 days at 7.5 MeV, yields a clear directional correlation of the solar-neutrino-induced electron events with respect to the Sun and a measurement of the differential electron-energy distribution. These provide unequivocal evidence for the production of B8 by fusion in the Sun. The measured flux of B8 solar neutrinos from the two subsamples relative to a prediction of the standard solar model is 0.46±0.05(stat)±0.06(syst). The total data sample is tested for short-term time variation; within the statistical error, no significant variation is observed.

Original language	English
Pages (from-to)	1297-1300
Number of pages	4
Journal	Physical review letters
Volume	65
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.65.1297
Publication status	Published - 1990
Externally published	Yes

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Physics and Astronomy(all)

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Hirata, K. S., Inoue, K., Kajita, T., Kifune, T., Kihara, K., Nakahata, M., Nakamura, K., Ohara, S., Sato, N., Suzuki, Y., Totsuka, Y., Yaginuma, Y., Mori, M., Oyama, Y., Suzuki, A., Takahashi, K., Yamada, M., Koshiba, M., Suda, T., ... Zhang, W. (1990). Results from one thousand days of real-time, directional solar-neutrino data. Physical review letters, 65(11), 1297-1300. https://doi.org/10.1103/PhysRevLett.65.1297

Results from one thousand days of real-time, directional solar-neutrino data. / Hirata, K. S.; Inoue, K.; Kajita, T.; Kifune, T.; Kihara, K.; Nakahata, M.; Nakamura, K.; Ohara, S.; Sato, N.; Suzuki, Y.; Totsuka, Y.; Yaginuma, Y.; Mori, M.; Oyama, Y.; Suzuki, A.; Takahashi, K.; Yamada, M.; Koshiba, M.; Suda, T.; Tajima, T.; Miyano, K.; Miyata, H.; Takei, H.; Fukuda, Y.; Kodera, E.; Nagashima, Y.; Takita, M.; Kaneyuki, K.; Tanimori, T.; Beier, E. W.; Feldscher, L. R.; Frank, E. D.; Frati, W.; Kim, S. B.; Mann, A. K.; Newcomer, F. M.; Van Berg, R.; Zhang, W.

In: Physical review letters, Vol. 65, No. 11, 1990, p. 1297-1300.

Research output: Contribution to journal › Article › peer-review

Hirata, KS, Inoue, K, Kajita, T, Kifune, T, Kihara, K, Nakahata, M, Nakamura, K, Ohara, S, Sato, N, Suzuki, Y, Totsuka, Y, Yaginuma, Y, Mori, M, Oyama, Y, Suzuki, A, Takahashi, K, Yamada, M, Koshiba, M, Suda, T, Tajima, T, Miyano, K, Miyata, H, Takei, H, Fukuda, Y, Kodera, E, Nagashima, Y, Takita, M, Kaneyuki, K, Tanimori, T, Beier, EW, Feldscher, LR, Frank, ED, Frati, W, Kim, SB, Mann, AK, Newcomer, FM, Van Berg, R & Zhang, W 1990, 'Results from one thousand days of real-time, directional solar-neutrino data', Physical review letters, vol. 65, no. 11, pp. 1297-1300. https://doi.org/10.1103/PhysRevLett.65.1297

Hirata, K. S. ; Inoue, K. ; Kajita, T. ; Kifune, T. ; Kihara, K. ; Nakahata, M. ; Nakamura, K. ; Ohara, S. ; Sato, N. ; Suzuki, Y. ; Totsuka, Y. ; Yaginuma, Y. ; Mori, M. ; Oyama, Y. ; Suzuki, A. ; Takahashi, K. ; Yamada, M. ; Koshiba, M. ; Suda, T. ; Tajima, T. ; Miyano, K. ; Miyata, H. ; Takei, H. ; Fukuda, Y. ; Kodera, E. ; Nagashima, Y. ; Takita, M. ; Kaneyuki, K. ; Tanimori, T. ; Beier, E. W. ; Feldscher, L. R. ; Frank, E. D. ; Frati, W. ; Kim, S. B. ; Mann, A. K. ; Newcomer, F. M. ; Van Berg, R. ; Zhang, W. / Results from one thousand days of real-time, directional solar-neutrino data. In: Physical review letters. 1990 ; Vol. 65, No. 11. pp. 1297-1300.

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title = "Results from one thousand days of real-time, directional solar-neutrino data",

abstract = "A data sample of 1040 days from the Kamiokande II detector, consisting of subsamples of 450 days at electron-energy threshold 9.3 MeV and 590 days at 7.5 MeV, yields a clear directional correlation of the solar-neutrino-induced electron events with respect to the Sun and a measurement of the differential electron-energy distribution. These provide unequivocal evidence for the production of B8 by fusion in the Sun. The measured flux of B8 solar neutrinos from the two subsamples relative to a prediction of the standard solar model is 0.46±0.05(stat)±0.06(syst). The total data sample is tested for short-term time variation; within the statistical error, no significant variation is observed.",

author = "Hirata, {K. S.} and K. Inoue and T. Kajita and T. Kifune and K. Kihara and M. Nakahata and K. Nakamura and S. Ohara and N. Sato and Y. Suzuki and Y. Totsuka and Y. Yaginuma and M. Mori and Y. Oyama and A. Suzuki and K. Takahashi and M. Yamada and M. Koshiba and T. Suda and T. Tajima and K. Miyano and H. Miyata and H. Takei and Y. Fukuda and E. Kodera and Y. Nagashima and M. Takita and K. Kaneyuki and T. Tanimori and Beier, {E. W.} and Feldscher, {L. R.} and Frank, {E. D.} and W. Frati and Kim, {S. B.} and Mann, {A. K.} and Newcomer, {F. M.} and {Van Berg}, R. and W. Zhang",

year = "1990",

doi = "10.1103/PhysRevLett.65.1297",

language = "English",

volume = "65",

pages = "1297--1300",

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AU - Hirata, K. S.

AU - Inoue, K.

AU - Kajita, T.

AU - Kifune, T.

AU - Kihara, K.

AU - Nakahata, M.

AU - Nakamura, K.

AU - Ohara, S.

AU - Sato, N.

AU - Suzuki, Y.

AU - Totsuka, Y.

AU - Yaginuma, Y.

AU - Mori, M.

AU - Oyama, Y.

AU - Suzuki, A.

AU - Takahashi, K.

AU - Yamada, M.

AU - Koshiba, M.

AU - Suda, T.

AU - Tajima, T.

AU - Miyano, K.

AU - Miyata, H.

AU - Takei, H.

AU - Fukuda, Y.

AU - Kodera, E.

AU - Nagashima, Y.

AU - Takita, M.

AU - Kaneyuki, K.

AU - Tanimori, T.

AU - Beier, E. W.

AU - Feldscher, L. R.

AU - Frank, E. D.

AU - Frati, W.

AU - Kim, S. B.

AU - Mann, A. K.

AU - Newcomer, F. M.

AU - Van Berg, R.

AU - Zhang, W.

PY - 1990

Y1 - 1990

N2 - A data sample of 1040 days from the Kamiokande II detector, consisting of subsamples of 450 days at electron-energy threshold 9.3 MeV and 590 days at 7.5 MeV, yields a clear directional correlation of the solar-neutrino-induced electron events with respect to the Sun and a measurement of the differential electron-energy distribution. These provide unequivocal evidence for the production of B8 by fusion in the Sun. The measured flux of B8 solar neutrinos from the two subsamples relative to a prediction of the standard solar model is 0.46±0.05(stat)±0.06(syst). The total data sample is tested for short-term time variation; within the statistical error, no significant variation is observed.

AB - A data sample of 1040 days from the Kamiokande II detector, consisting of subsamples of 450 days at electron-energy threshold 9.3 MeV and 590 days at 7.5 MeV, yields a clear directional correlation of the solar-neutrino-induced electron events with respect to the Sun and a measurement of the differential electron-energy distribution. These provide unequivocal evidence for the production of B8 by fusion in the Sun. The measured flux of B8 solar neutrinos from the two subsamples relative to a prediction of the standard solar model is 0.46±0.05(stat)±0.06(syst). The total data sample is tested for short-term time variation; within the statistical error, no significant variation is observed.

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Results from one thousand days of real-time, directional solar-neutrino data

Abstract

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