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25 April 2024

» arxiv » 1109.1889

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Study of Non-Standard Neutrino Interactions with Atmospheric Neutrino Data in Super-Kamiokande I and II
G. Mitsuka ; K. Abe ; Y. Hayato ; T. Iida ; M. Ikeda ; J. Kameda ; Y. Koshio ; M. Miura ; S. Moriyama ; M. Nakahata ; S. Nakayama ; Y. Obayashi ; H. Sekiya ; M. Shiozawa ; Y. Suzuki ; A. Takeda ; Y. Takenaga ; Y. Takeuchi ; K. Ueno ; K. Ueshima ; H. Watanabe ; S. Yamada ; S. Hazama ; I. Higuchi ; C. Ishihara ; H. Kaji ; T. Kajita ; K. Kaneyuki ; H. Nishino ; K. Okumura ; N. Tanimoto ; F. Dufour ; E. Kearns ; M. Litos ; J.L. Raaf ; J.L. Stone ; L.R. Sulak ; M. Goldhaber ; K. Bays ; J.P. Cravens ; W.R. Kropp ; S. Mine ; C. Regis ; M.B. Smy ; H.W. Sobel ; M.R. Vagins ; K.S. Ganezer ; J. Hill ; W.E. Keig ; J.S. Jang ; J.Y. Kim ; I.T. Lim ; J. Albert ; K. Scholberg ; C.W. Walter ; R. Wendell ; T. Ishizuka ; S. Tasaka ; J.G. Learned ; S. Matsuno ; Y. Watanabe ; T. Hasegawa ; T. Ishida ; T. Ishii ; T. Kobayashi ; T. Nakadaira ; K. Nakamura ; K. Nishikawa ; Y. Oyama ; K. Sakashita ; T. Sekiguchi ; T. Tsukamoto ; A.T. Suzuki ; A. Minamino ; T. Nakaya ; M. Yokoyama ; Y. Fukuda ; Y. Itow ; T. Tanaka ; C.K. Jung ; G. Lopez ; C. McGrew ; C. Yanagisawa ; N. Tamura ; Y. Idehara ; M. Sakuda ; Y. Kuno ; M. Yoshida ; S.B. Kim ; B.S. Yang ; H. Okazawa ; Y. Choi ; H.K. Seo ; Y. Furuse ; K. Nishijima ; Y. Yokosawa ; M. Koshiba ; Y. Totsuka ; S. Chen ; J. Liu ; Y. Heng ; Z. Yang ; H. Zhang ; D. Kielczewska ; K. Connolly ; E. Thrane ; R.J. Wilkes ;
Date:	9 Sep 2011
Abstract:	In this paper we study non-standard neutrino interactions as an example of physics beyond the standard model using atmospheric neutrino data collected during the Super-Kamiokande I(1996-2001) and II(2003-2005) periods. We focus on flavor-changing-neutral-currents (FCNC), which allow neutrino flavor transitions via neutral current interactions, and effects which violate lepton non-universality (NU) and give rise to different neutral-current interaction-amplitudes for different neutrino flavors. We obtain a limit on the FCNC coupling parameter, varepsilon_{mu tau}, \|varepsilon_{mu tau}\|<1.1 x 10^{-2} at 90%C.L. and various constraints on other FCNC parameters as a function of the NU coupling, varepsilon_{e e}. We find no evidence of non-standard neutrino interactions in the Super-Kamiokande atmospheric data.
Source:	arXiv, 1109.1889
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