Atmospheric ratio in the multi-GeV energy range

Autor: H. Miyata, J. Suzuki, Y. Takeuchi, Kazumasa Miyano, Masaki Mori, K. Nakamura, Y. Nagashima, Akito Sakai, Atsumu Suzuki, E. W. Beier, Masato Shiozawa, Soo-Bong Kim, S. Kasuga, Y. Fukuda, A. T. Suzuki, K. S. Hirata, Toru Tanimori, T. Hara, K. Kaneyuki, E. D. Frank, M. Koga, Takaaki Kajita, M. Koshiba, R. Van Berg, H. Okazawa, T. Ishizuka, Weiya Zhang, S. Joukou, Shigeki Tasaka, Takanori Ishida, Kunio Inoue, K. Kihara, T. Kumita, H. Takei, Yasunari Suzuki, F. M. Newcomer, K. Nishijima, M. Takita, T. Hayakawa, Y. Totsuka, K. Nishikawa, A. Yoshimoto, Yuichi Oyama, Kunio Matsumoto, A.K. Mann, W. Frati, M. Yamada, T. Kajimura, T. Suda, Masayuki Nakahata, Y. Hayato, Yusuke Koshio, N. Kishi
Rok vydání: 1994
Předmět:
Zdroj: Physics Letters B. 335:237-245
ISSN: 0370-2693
Popis: Data from the Kamiokande detector were used to study the atmospheric (v μ + v μ ) (v e + v e ) ratio in the multi-GeV energy range. The observed ratio of μ-like to e-like events relative to the calculated ratio, ( μ /e) data /( μ /e) MC = 0.57 -0.07 +0.08 ± 0.07, suggests that the atmospheric (v μ + v μ ) (v e + v e ) ratio is smaller than expected for these neutrino energies. Also studied was the zenith-angle dependence of the above ratio. Results of an analysis of neutrino oscillations are presented.
Databáze: OpenAIRE