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Search for Differences in Oscillation Parameters for Atmospheric Neutrinos and Antineutrinos at Super-Kamiokande

Authors :
Collaboration, Super-Kamiokande
Abe, K.
Hayato, Y.
Iida, T.
Ikeda, M.
Iyogi, K.
Kameda, J.
Koshio, Y.
Kozuma, Y.
Miura, M.
Moriyama, S.
Nakahata, M.
Nakayama, S.
Obayashi, Y.
Sekiya, H.
Shiozawa, M.
Suzuki, Y.
Takeda, A.
Takenaga, Y.
Takeuchi, Y.
Ueno, K.
Ueshima, K.
Watanabe, H.
Yamada, S.
Yokozawa, T.
Ishihara, C.
Kaji, H.
Lee, K. P.
Kajita, T.
Kaneyuki, K.
McLachlan, T.
Okumura, K.
Shimizu, Y.
Tanimoto, N.
Martens, K.
Vagins, M. R.
Labarga, L.
Magro, L. M.
Dufour, F.
Kearns, E.
Litos, M.
Raaf, J. L.
Stone, J. L.
Sulak, L. R.
Goldhaber, M.
Bays, K.
Kropp, W. R.
Mine, S.
Regis, C.
Smy, M. B.
Sobel, H. W.
Ganezer, K. S.
Hill, J.
Keig, W. E.
Jang, J. S.
Kim, J. Y.
Lim, I. T.
Albert, J. B.
Scholberg, K.
Walter, C. W.
Wendell, R.
Wongjirad, T. M.
Tasaka, S.
Learned, J. G.
Matsuno, S.
Hasegawa, T.
Ishida, T.
Ishii, T.
Kobayashi, T.
Nakadaira, T.
Nakamura, K.
Nishikawa, K.
Nishino, H.
Oyama, Y.
Sakashita, K.
Sekiguchi, T.
Tsukamoto, T.
Suzuki, A. T.
Minamino, A.
Nakaya, T.
Fukuda, Y.
Itow, Y.
Mitsuka, G.
Tanaka, T.
Jung, C. K.
Taylor, I.
Yanagisawa, C.
Ishino, H.
Kibayashi, A.
Mino, S.
Mori, T.
Sakuda, M.
Toyota, H.
Kuno, Y.
Kim, S. B.
Yang, B. S.
Ishizuka, T.
Okazawa, H.
Choi, Y.
Nishijima, K.
Koshiba, M.
Yokoyama, M.
Totsuka, Y.
Chen, S.
Heng, Y.
Yang, Z.
Zhang, H.
Kielczewska, D.
Mijakowski, P.
Connolly, K.
Dziomba, M.
Wilkes, R. J.
Publication Year :
2011

Abstract

We present a search for differences in the oscillations of antineutrinos and neutrinos in the Super-Kamiokande -I, -II, and -III atmospheric neutrino sample. Under a two-flavor disappearance model with separate mixing parameters between neutrinos and antineutrinos, we find no evidence for a difference in oscillation parameters. Best fit antineutrino mixing is found to be at (dm2bar, sin2 2 thetabar) = (2.0x10^-3 eV^2, 1.0) and is consistent with the overall Super-K measurement.<br />Comment: 6 pages, 4 figures. Figure updated

Subjects

Subjects :
High Energy Physics - Experiment

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1109.1621
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevLett.107.241801
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