| Literature DB >> 12570410 |
M H Ahn1, 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 Ishitsuka, Y 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, Y 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, M Sakuda, N Sakurai, N 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.
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). Twenty-nine one ring mu-like events are used to reconstruct the neutrino energy spectrum, which is better matched to the expected spectrum with neutrino oscillation than without. The probability that the observed flux at SK is explained by statistical fluctuation without neutrino oscillation is less than 1%.Year: 2003 PMID： 12570410 DOI： 10.1103/PhysRevLett.90.041801
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161