Indications of Neutrino Oscillation in a 250 km Long-Baseline Experiment

Ahn, Myunggeun; Aoki, S.; Bhang, H.; Boyd, S.; Casper, D.; H. Choi, J.; Fukuda, Satoshi; Fukuda, Y.; Gajewski, W.; Hara, T.; Hasegawa, M.; Hasegawa, T.; Hayato, Y.; Hill, J.; K. Ichikawa, A.; Ikeda, Akihiro; Inagaki, T.; Ishida, Toru; Ishii, T.; Ishitsuka, M.; Itow, Y.; Iwashita, T.; I. Jang, H.; S. Jang, J.; J. Jeon, E.; K. Jung, C.; Kajita, T.; Kameda, J.; Kaneyuki, K.; Kato, I.; Kearns, E.; Kibayashi, A.; Kiełczewska, D.; Kobayashi, Kazuyoshi; Joon Kim, Beom; O. Kim, C.; Y. Kim, J.; B. Kim, S.; Kobayashi, T.; Kohama, M.; Koshio, Y.; R. Kropp, W.; G. Learned, J.; H. Lim, S.; T. Lim, I.; 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, Shuichi; Obayashi, Y.; Okada, Atsushi; Ooyabu, T.; Oyama, Y.; Y. Pac, M.; Park, H.; Sakuda, M.; Sakurai, N.; Sasao, N.; Scholberg, K.; Sharkey, E.; Shiozawa, M.; So, Hyoungmin; W. Sobel, H.; L. Stachyra, A.; L. Stone, J.; Suga, Yuki; Sulak, Lawrence; Suzuki, Y.; Suzuki, Y.; Takeuchi, Y.; Tamura, N.; Toshito, T.; Totsuka, Y.; R. Vagins, M.; W. Walter, C.; J. Wilkes, R.; Yamada, S.; Yamamoto, S.; Yanagisawa, C.; Yokoyama, H.; Yoo, J.; Yoshida, M.; Zalipska, J.

doi:10.1103/physrevlett.90.041801

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Indications of Neutrino Oscillation in a 250 km Long-Baseline Experiment

Published in Physical Review Letters • Jan 30, 2003

Authors:

Myunggeun Ahn

S. Aoki

H. Bhang

Abstract

The K2K experiment observes indications of neutrino oscillation: a reduction of nu(mu) flux together with a distortion of the energy spectrum. Fifty-six beam neutrino events are observed in Super-Kamiokande (SK), 250 km from the neutrino production point, with an expectation of 80.1(+6.2)(-5.4). Twe...

Subject

Physics

Neutrino oscillation

Neutrino

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