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arxiv: 1002.3471 · v2 · pith:H6N445MKnew · submitted 2010-02-18 · ✦ hep-ex

Atmospheric neutrino oscillation analysis with sub-leading effects in Super-Kamiokande I, II, and III

Super-Kamiokande Collaboration: R. Wendell , C. Ishihara , K. Abe , Y. Hayato , T. Iida , M. Ikeda , K. Iyogi , J. Kameda
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K. Kobayashi Y. Koshio Y. Kozuma M. Miura S. Moriyama M. Nakahata S. Nakayama Y. Obayashi H. Ogawa H. Sekiya M. Shiozawa Y. Suzuki A. Takeda Y. Takenaga Y. Takeuchi K. Ueno K. Ueshima H. Watanabe S. Yamada T. Yokozawa S. Hazama H. Kaji T. Kajita K. Kaneyuki T. McLachlan K. Okumura Y. Shimizu N. Tanimoto M.R. Vagins F. Dufour E. Kearns M. Litos J.L. Raaf J.L. Stone L.R. Sulak W. Wang M. Goldhaber K. Bays D. Casper J.P. Cravens W.R. Kropp S. Mine C. Regis M.B. Smy H.W. Sobel K.S. Ganezer J. Hill W.E. Keig J.S. Jang J.Y. Kim I.T. Lim J. Albert M. Fechner K. Scholberg C.W. Walter S. Tasaka J.G. Learned S. Matsuno Y. Watanabe T. Hasegawa T. Ishida T. Ishii T. Kobayashi T. Nakadaira K. Nakamura K. Nishikawa H. Nishino Y. Oyama K. Sakashita T. Sekiguchi T. Tsukamoto A.T. Suzuki A. Minamino T. Nakaya Y. Fukuda Y. Itow G. Mitsuka T. Tanaka C.K. Jung G. Lopez C. McGrew C. Yanagisawa N. Tamura H. Ishino A. Kibayashi S. Mino T. Mori M. Sakuda H. Toyota Y. Kuno M. Yoshida S.B. Kim B.S. Yang T. Ishizuka H. Okazawa Y. Choi K. Nishijima Y. Yokosawa M. Koshiba M. Yokoyama Y. Totsuka S. Chen Y. Heng Z. Yang H. Zhang D. Kielczewska P. Mijakowski K. Connolly M. Dziomba E. Thrane R.J. Wilkes
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keywords thetaneutrinoatmosphericdatadeltahierarchynon-zerosuper-kamiokande
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We present a search for non-zero theta_{13} and deviations of sin^2 theta_{23} from 0.5 in the oscillations of atmospheric neutrino data from Super-Kamiokande -I, -II, and -III. No distortions of the neutrino flux consistent with non-zero theta_{13} are found and both neutrino mass hierarchy hypotheses are in agreement with the data. The data are best fit at Delta m^2 = 2.1 x 10^-3 eV^2, sin^2 theta_{13} = 0.0, and sin^2 theta_{23} =0.5. In the normal (inverted) hierarchy theta_{13} and Delta m^2 are constrained at the one-dimensional 90% C.L. to sin^2 theta_{13} < 0.04 (0.09) and 1.9 (1.7) x 10^-3 < Delta m^2 < 2.6 (2.7) x 10^-3 eV^2. The atmospheric mixing angle is within 0.407 <= sin^2 theta_{23} <= 0.583 at 90% C.L.

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