Phys. Rev. Lett.
93,
101801
(2004)
[6 pages]
Evidence for an Oscillatory Signature in Atmospheric Neutrino Oscillations
Y. Ashie et al. The Super-Kamiokande Collaboration
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Y. Ashie1, J. Hosaka1, K. Ishihara1, Y. Itow1, J. Kameda1, Y. Koshio1, A. Minamino1, C. Mitsuda1, M. Miura1, S. Moriyama1, M. Nakahata1, T. Namba1, R. Nambu1, Y. Obayashi1, M. Shiozawa1, Y. Suzuki1, Y. Takeuchi1, K. Taki1, S. Yamada1, M. Ishitsuka2, T. Kajita2, K. Kaneyuki2, S. Nakayama2, A. Okada2, K. Okumura2, T. Ooyabu2, C. Saji2, Y. Takenaga2, S. Desai3, E. Kearns3, S. Likhoded3, J. L. Stone3, L. R. Sulak3, C. W. Walter3, W. Wang3, M. Goldhaber4, D. Casper5, J. P. Cravens5, W. Gajewski5, W. R. Kropp5, D. W. Liu5, S. Mine5, M. B. Smy5, H. W. Sobel5, C. W. Sterner5, M. R. Vagins5, K. S. Ganezer6, J. Hill6, W. E. Keig6, J. S. Jang7, J. Y. Kim7, I. T. Lim7, R. W. Ellsworth8, S. Tasaka9, G. Guillian10, A. Kibayashi10, J. G. Learned10, S. Matsuno10, D. Takemori10, M. D. Messier11, Y. Hayato12, A. K. Ichikawa12, T. Ishida12, T. Ishii12, T. Iwashita12, T. Kobayashi12, T. Maruyama12, K. Nakamura12, K. Nitta12, Y. Oyama12, M. Sakuda12, Y. Totsuka12, A. T. Suzuki13, M. Hasegawa14, K. Hayashi14, T. Inagaki14, I. Kato14, H. Maesaka14, T. Morita14, T. Nakaya14, K. Nishikawa14, T. Sasaki14, S. Ueda14, S. Yamamoto14, T. J. Haines15,5, S. Dazeley16, S. Hatakeyama16, R. Svoboda16, E. Blaufuss17, J. A. Goodman17, G. W. Sullivan17, D. Turcan17, K. Scholberg18, A. Habig19, Y. Fukuda20, C. K. Jung21, T. Kato21, K. Kobayashi21, M. Malek21, C. Mauger21, C. McGrew21, A. Sarrat21, E. Sharkey21, C. Yanagisawa21, T. Toshito22, K. Miyano23, N. Tamura23, J. Ishii24, Y. Kuno24, Y. Nagashima24, M. Takita24, M. Yoshida24, S. B. Kim25, J. Yoo25, H. Okazawa26, T. Ishizuka27, Y. Choi28, H. K. Seo28, Y. Gando29, T. Hasegawa29, K. Inoue29, J. Shirai29, A. Suzuki29, M. Koshiba30, Y. Nakajima31, K. Nishijima31, T. Harada32, H. Ishino32, R. Nishimura32, Y. Watanabe32, D. Kielczewska33,5, J. Zalipska33, H. G. Berns34, R. Gran34, K. K. Shiraishi34, A. Stachyra34, K. Washburn34, and R. J. Wilkes34 (The Super-Kamiokande Collaboration)
1Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu, 506-1205, Japan
2Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
3Department of Physics, Boston University, Boston, Massachusetts 02215, USA
4Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
5Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
6Department of Physics, California State University, Dominguez Hills, Carson, California 90747, USA
7Department of Physics, Chonnam National University, Kwangju 500-757, Korea
8Department of Physics, George Mason University, Fairfax, Virginia 22030, USA
9Department of Physics, Gifu University, Gifu, Gifu 501-1193, Japan
10Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
11Department of Physics, Indiana University, Bloomington, Indiana 47405-7105, USA
12High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
13Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
14Department of Physics, Kyoto University, Kyoto 606-8502, Japan
15Physics Division, P-23, Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
16Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA
17Department of Physics, University of Maryland, College Park, Maryland 20742, USA
18Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
19Department of Physics, University of Minnesota, Duluth, Minnesota 55812-2496, USA
20Department of Physics, Miyagi University of Education, Sendai, Miyagi 980-0845, Japan
21Department of Physics and Astronomy, State University of New York, Stony Brook, New York 11794-3800, USA
22Department of Physics, Nagoya University, Nagoya, Aichi 464-8602, Japan
23Department of Physics, Niigata University, Niigata, Niigata 950-2181, Japan
24Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
25Department of Physics, Seoul National University, Seoul 151-742, Korea
26International and Cultural Studies, Shizuoka Seika College, Yaizu, Shizuoka 425-8611, Japan
27Department of Systems Engineering, Shizuoka University, Hamamatsu, Shizuoka 432-8561, Japan
28Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
29Research Center for Neutrino Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
30University of Tokyo, Tokyo 113-0033, Japan
31Department of Physics, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
32Department of Physics, Tokyo Institute for Technology, Meguro, Tokyo 152-8551, Japan
33Institute of Experimental Physics, Warsaw University, 00-681 Warsaw, Poland
34Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA
Received 27 April 2004; published 3 September 2004
Muon neutrino disappearance probability as a function of neutrino flight length L over neutrino energy E was studied. A dip in the L/E distribution was observed in the data, as predicted from the sinusoidal flavor transition probability of neutrino oscillation. The observed L/E distribution constrained νμ↔ντ neutrino oscillation parameters; 1.9×10-3<Δm2<3.0×10-3 eV2 and sin22θ>0.90 at 90% confidence level.
© 2004 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.101801
DOI:
10.1103/PhysRevLett.93.101801
Present address: Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA
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