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26 April 2024

» arxiv » 1002.3471

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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 ; 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 ;
Date:	18 Feb 2010
Abstract:	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 of 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.
Source:	arXiv, 1002.3471
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