Study of nonstandard 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. UeshimaH. 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

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Abstract

In this paper we study nonstandard 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 nonuniversality and give rise to different neutral-current interaction- amplitudes for different neutrino flavors. We obtain a limit on the FCNC coupling parameter, ε μτ, |ε μτ|< 1.1×10 -2 at 90% C.L. and various constraints on other FCNC parameters as a function of the nonuniversality coupling, ε ee. We find no evidence of nonstandard neutrino interactions in the Super-Kamiokande atmospheric data.

Original languageEnglish
Article number113008
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume84
Issue number11
DOIs
Publication statusPublished - 2011 Dec 14

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