Indications of neutrino oscillation in a 250 km long-baseline experiment

M. H. Ahn, S. Aoki, H. Bhang, S. Boyd, D. Casper, J. H. Choi, S. Fukuda, Y. Fukuda, W. Gajewski, T. Hara, M. Hasegawa, T. Hasegawa, Y. Hayato, J. Hill, A. K. Ichikawa, A. Ikeda, T. Inagaki, T. Ishida, T. Ishii, M. IshitsukaY. Itow, T. Iwashita, H. I. Jang, J. S. Jang, E. J. Jeon, C. K. Jung, T. Kajita, J. Kameda, K. Kaneyuki, I. Kato, E. Kearns, A. Kibayashi, D. Kielczewska, K. Kobayashi, B. J. Kim, C. O. Kim, J. Y. Kim, S. B. Kim, T. Kobayashi, M. Kohama, Yusuke Koshio, W. R. Kropp, J. G. Learned, S. H. Lim, I. T. Lim, H. Maesaka, K. Martens, T. Maruyama, S. Matsuno, C. Mauger, C. Mcgrew, S. Mine, M. Miura, K. Miyano, S. Moriyama, M. Nakahata, K. Nakamura, I. Nakano, F. Nakata, T. Nakaya, S. Nakayama, T. Namba, K. Nishikawa, S. Nishiyama, S. Noda, A. Obayashi, A. Okada, T. Ooyabu, Y. Oyama, M. Y. Pac, H. Park, Makoto Sakuda, N. Sakurai, Noboru Sasao, K. Scholberg, E. Sharkey, M. Shiozawa, H. So, H. W. Sobel, A. Stachyra, J. L. Stone, Y. Suga, L. R. Sulak, A. Suzuki, Y. Suzuki, Y. Takeuchi, N. Tamura, T. Toshito, Y. Totsuka, M. R. Vagins, C. W. Walter, R. J. Wilkes, S. Yamada, S. Yamamoto, C. Yanagisawa, H. Yokoyama, J. Yoo, M. Yoshida, J. Zalipska

Research output: Contribution to journalArticle

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Abstract

A study was performed on Kamioka long-baseline neutrino oscillation experiment (K2K). The indications of neutrino oscillation such as a reduction of flux together with a distortion of the energy spectrum were observed in the experiment. In Super Kamiokande (SK), 250 km from the neutrino production point, fifty-six beam neutrino events were observed. It was found that the probability that the measurements at SK is explained by statistical fluctuation without neutrino oscillation is less than 1%.

Original languageEnglish
Article number041801
Pages (from-to)418011-418015
Number of pages5
JournalPhysical Review Letters
Volume90
Issue number4
Publication statusPublished - Jan 31 2003
Externally publishedYes

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indication
neutrinos
oscillations
neutrino beams
energy spectra

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ahn, M. H., Aoki, S., Bhang, H., Boyd, S., Casper, D., Choi, J. H., ... Zalipska, J. (2003). Indications of neutrino oscillation in a 250 km long-baseline experiment. Physical Review Letters, 90(4), 418011-418015. [041801].

Indications of neutrino oscillation in a 250 km long-baseline experiment. / Ahn, M. H.; Aoki, S.; Bhang, H.; Boyd, S.; Casper, D.; Choi, J. H.; Fukuda, S.; Fukuda, Y.; Gajewski, W.; Hara, T.; Hasegawa, M.; Hasegawa, T.; Hayato, Y.; Hill, J.; Ichikawa, A. K.; Ikeda, A.; Inagaki, T.; Ishida, T.; Ishii, T.; Ishitsuka, M.; Itow, Y.; Iwashita, T.; Jang, H. I.; Jang, J. S.; Jeon, E. J.; Jung, C. K.; Kajita, T.; Kameda, J.; Kaneyuki, K.; Kato, I.; Kearns, E.; Kibayashi, A.; Kielczewska, D.; Kobayashi, K.; Kim, B. J.; Kim, C. O.; Kim, J. Y.; Kim, S. B.; Kobayashi, T.; Kohama, M.; Koshio, Yusuke; Kropp, W. R.; Learned, J. G.; Lim, S. H.; Lim, I. T.; Maesaka, H.; Martens, K.; Maruyama, T.; Matsuno, S.; Mauger, C.; Mcgrew, C.; Mine, S.; Miura, M.; Miyano, K.; Moriyama, S.; Nakahata, M.; Nakamura, K.; Nakano, I.; Nakata, F.; Nakaya, T.; Nakayama, S.; Namba, T.; Nishikawa, K.; Nishiyama, S.; Noda, S.; Obayashi, A.; Okada, A.; Ooyabu, T.; Oyama, Y.; Pac, M. Y.; Park, H.; Sakuda, Makoto; Sakurai, N.; Sasao, Noboru; Scholberg, K.; Sharkey, E.; Shiozawa, M.; So, H.; Sobel, H. W.; Stachyra, A.; Stone, J. L.; Suga, Y.; Sulak, L. R.; Suzuki, A.; Suzuki, Y.; Takeuchi, Y.; Tamura, N.; Toshito, T.; Totsuka, Y.; Vagins, M. R.; Walter, C. W.; Wilkes, R. J.; Yamada, S.; Yamamoto, S.; Yanagisawa, C.; Yokoyama, H.; Yoo, J.; Yoshida, M.; Zalipska, J.

In: Physical Review Letters, Vol. 90, No. 4, 041801, 31.01.2003, p. 418011-418015.

Research output: Contribution to journalArticle

Ahn, MH, Aoki, S, Bhang, H, Boyd, S, Casper, D, Choi, JH, Fukuda, S, Fukuda, Y, Gajewski, W, Hara, T, Hasegawa, M, Hasegawa, T, Hayato, Y, Hill, J, Ichikawa, AK, Ikeda, A, Inagaki, T, Ishida, T, Ishii, T, Ishitsuka, M, Itow, Y, Iwashita, T, Jang, HI, Jang, JS, Jeon, EJ, Jung, CK, Kajita, T, Kameda, J, Kaneyuki, K, Kato, I, Kearns, E, Kibayashi, A, Kielczewska, D, Kobayashi, K, Kim, BJ, Kim, CO, Kim, JY, Kim, SB, Kobayashi, T, Kohama, M, Koshio, Y, Kropp, WR, Learned, JG, Lim, SH, Lim, IT, Maesaka, H, Martens, K, Maruyama, T, Matsuno, S, Mauger, C, Mcgrew, C, Mine, S, Miura, M, Miyano, K, Moriyama, S, Nakahata, M, Nakamura, K, Nakano, I, Nakata, F, Nakaya, T, Nakayama, S, Namba, T, Nishikawa, K, Nishiyama, S, Noda, S, Obayashi, A, Okada, A, Ooyabu, T, Oyama, Y, Pac, MY, Park, H, Sakuda, M, Sakurai, N, Sasao, N, Scholberg, K, Sharkey, E, Shiozawa, M, So, H, Sobel, HW, Stachyra, A, Stone, JL, Suga, Y, Sulak, LR, Suzuki, A, Suzuki, Y, Takeuchi, Y, Tamura, N, Toshito, T, Totsuka, Y, Vagins, MR, Walter, CW, Wilkes, RJ, Yamada, S, Yamamoto, S, Yanagisawa, C, Yokoyama, H, Yoo, J, Yoshida, M & Zalipska, J 2003, 'Indications of neutrino oscillation in a 250 km long-baseline experiment', Physical Review Letters, vol. 90, no. 4, 041801, pp. 418011-418015.
Ahn MH, Aoki S, Bhang H, Boyd S, Casper D, Choi JH et al. Indications of neutrino oscillation in a 250 km long-baseline experiment. Physical Review Letters. 2003 Jan 31;90(4):418011-418015. 041801.
Ahn, M. H. ; Aoki, S. ; Bhang, H. ; Boyd, S. ; Casper, D. ; Choi, J. H. ; Fukuda, S. ; Fukuda, Y. ; Gajewski, W. ; Hara, T. ; Hasegawa, M. ; Hasegawa, T. ; Hayato, Y. ; Hill, J. ; Ichikawa, A. K. ; Ikeda, A. ; Inagaki, T. ; Ishida, T. ; Ishii, T. ; Ishitsuka, M. ; Itow, Y. ; Iwashita, T. ; Jang, H. I. ; Jang, J. S. ; Jeon, E. J. ; Jung, C. K. ; Kajita, T. ; Kameda, J. ; Kaneyuki, K. ; Kato, I. ; Kearns, E. ; Kibayashi, A. ; Kielczewska, D. ; Kobayashi, K. ; Kim, B. J. ; Kim, C. O. ; Kim, J. Y. ; Kim, S. B. ; Kobayashi, T. ; Kohama, M. ; Koshio, Yusuke ; Kropp, W. R. ; Learned, J. G. ; Lim, S. H. ; Lim, I. T. ; Maesaka, H. ; Martens, K. ; Maruyama, T. ; Matsuno, S. ; Mauger, C. ; Mcgrew, C. ; Mine, S. ; Miura, M. ; Miyano, K. ; Moriyama, S. ; Nakahata, M. ; Nakamura, K. ; Nakano, I. ; Nakata, F. ; Nakaya, T. ; Nakayama, S. ; Namba, T. ; Nishikawa, K. ; Nishiyama, S. ; Noda, S. ; Obayashi, A. ; Okada, A. ; Ooyabu, T. ; Oyama, Y. ; Pac, M. Y. ; Park, H. ; Sakuda, Makoto ; Sakurai, N. ; Sasao, Noboru ; Scholberg, K. ; Sharkey, E. ; Shiozawa, M. ; So, H. ; Sobel, H. W. ; Stachyra, A. ; Stone, J. L. ; Suga, Y. ; Sulak, L. R. ; Suzuki, A. ; Suzuki, Y. ; Takeuchi, Y. ; Tamura, N. ; Toshito, T. ; Totsuka, Y. ; Vagins, M. R. ; Walter, C. W. ; Wilkes, R. J. ; Yamada, S. ; Yamamoto, S. ; Yanagisawa, C. ; Yokoyama, H. ; Yoo, J. ; Yoshida, M. ; Zalipska, J. / Indications of neutrino oscillation in a 250 km long-baseline experiment. In: Physical Review Letters. 2003 ; Vol. 90, No. 4. pp. 418011-418015.
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abstract = "A study was performed on Kamioka long-baseline neutrino oscillation experiment (K2K). The indications of neutrino oscillation such as a reduction of flux together with a distortion of the energy spectrum were observed in the experiment. In Super Kamiokande (SK), 250 km from the neutrino production point, fifty-six beam neutrino events were observed. It was found that the probability that the measurements at SK is explained by statistical fluctuation without neutrino oscillation is less than 1{\%}.",
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TY - JOUR

T1 - Indications of neutrino oscillation in a 250 km long-baseline experiment

AU - Ahn, M. H.

AU - Aoki, S.

AU - Bhang, H.

AU - Boyd, S.

AU - Casper, D.

AU - Choi, J. H.

AU - Fukuda, S.

AU - Fukuda, Y.

AU - Gajewski, W.

AU - Hara, T.

AU - Hasegawa, M.

AU - Hasegawa, T.

AU - Hayato, Y.

AU - Hill, J.

AU - Ichikawa, A. K.

AU - Ikeda, A.

AU - Inagaki, T.

AU - Ishida, T.

AU - Ishii, T.

AU - Ishitsuka, M.

AU - Itow, Y.

AU - Iwashita, T.

AU - Jang, H. I.

AU - Jang, J. S.

AU - Jeon, E. J.

AU - Jung, C. K.

AU - Kajita, T.

AU - Kameda, J.

AU - Kaneyuki, K.

AU - Kato, I.

AU - Kearns, E.

AU - Kibayashi, A.

AU - Kielczewska, D.

AU - Kobayashi, K.

AU - Kim, B. J.

AU - Kim, C. O.

AU - Kim, J. Y.

AU - Kim, S. B.

AU - Kobayashi, T.

AU - Kohama, M.

AU - Koshio, Yusuke

AU - Kropp, W. R.

AU - Learned, J. G.

AU - Lim, S. H.

AU - Lim, I. T.

AU - Maesaka, H.

AU - Martens, K.

AU - Maruyama, T.

AU - Matsuno, S.

AU - Mauger, C.

AU - Mcgrew, C.

AU - Mine, S.

AU - Miura, M.

AU - Miyano, K.

AU - Moriyama, S.

AU - Nakahata, M.

AU - Nakamura, K.

AU - Nakano, I.

AU - Nakata, F.

AU - Nakaya, T.

AU - Nakayama, S.

AU - Namba, T.

AU - Nishikawa, K.

AU - Nishiyama, S.

AU - Noda, S.

AU - Obayashi, A.

AU - Okada, A.

AU - Ooyabu, T.

AU - Oyama, Y.

AU - Pac, M. Y.

AU - Park, H.

AU - Sakuda, Makoto

AU - Sakurai, N.

AU - Sasao, Noboru

AU - Scholberg, K.

AU - Sharkey, E.

AU - Shiozawa, M.

AU - So, H.

AU - Sobel, H. W.

AU - Stachyra, A.

AU - Stone, J. L.

AU - Suga, Y.

AU - Sulak, L. R.

AU - Suzuki, A.

AU - Suzuki, Y.

AU - Takeuchi, Y.

AU - Tamura, N.

AU - Toshito, T.

AU - Totsuka, Y.

AU - Vagins, M. R.

AU - Walter, C. W.

AU - Wilkes, R. J.

AU - Yamada, S.

AU - Yamamoto, S.

AU - Yanagisawa, C.

AU - Yokoyama, H.

AU - Yoo, J.

AU - Yoshida, M.

AU - Zalipska, J.

PY - 2003/1/31

Y1 - 2003/1/31

N2 - A study was performed on Kamioka long-baseline neutrino oscillation experiment (K2K). The indications of neutrino oscillation such as a reduction of flux together with a distortion of the energy spectrum were observed in the experiment. In Super Kamiokande (SK), 250 km from the neutrino production point, fifty-six beam neutrino events were observed. It was found that the probability that the measurements at SK is explained by statistical fluctuation without neutrino oscillation is less than 1%.

AB - A study was performed on Kamioka long-baseline neutrino oscillation experiment (K2K). The indications of neutrino oscillation such as a reduction of flux together with a distortion of the energy spectrum were observed in the experiment. In Super Kamiokande (SK), 250 km from the neutrino production point, fifty-six beam neutrino events were observed. It was found that the probability that the measurements at SK is explained by statistical fluctuation without neutrino oscillation is less than 1%.

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UR - http://www.scopus.com/inward/citedby.url?scp=0037473863&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0037473863

VL - 90

SP - 418011

EP - 418015

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 4

M1 - 041801

ER -