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

Journal Article

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%.

Duke Authors

Cited Authors

  • 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

Published Date

  • 2003

Published In

Volume / Issue

  • 90 / 4

Start / End Page

  • 418011 - 418015

International Standard Serial Number (ISSN)

  • 0031-9007