Search for matter-dependent atmospheric neutrino oscillations in Super-Kamiokande

K. Abe*, Y. Hayato, T. Iida, M. Ikeda, J. Kameda, Y. Koshio, A. Minamino, M. Miura, S. Moriyama, M. Nakahata, S. Nakayama, Y. Obayashi, H. Ogawa, H. Sekiya, M. Shiozawa, Y. Suzuki, A. Takeda, Y. Takeuchi, K. Ueshima, H. WatanabeS. Yamada, I. Higuchi, C. Ishihara, T. Kajita, K. Kaneyuki, G. Mitsuka, H. Nishino, K. Okumura, C. Saji, Y. Takenaga, S. Clark, S. Desai, F. Dufour, E. Kearns, S. Likhoded, M. Litos, J. L. Raaf, J. L. Stone, L. R. Sulak, W. Wang, M. Goldhaber, D. Casper, J. P. Cravens, J. Dunmore, W. R. Kropp, D. W. Liu, S. Mine, C. Regis, M. B. Smy, H. W. Sobel, M. R. Vagins, K. S. Ganezer, B. Hartfield, J. Hill, W. E. Keig, J. S. Jang, I. S. Jeong, J. Y. Kim, I. T. Lim, K. Scholberg, M. Fechner, N. Tanimoto, C. W. Walter, R. Wendell, S. Tasaka, G. Guillian, J. G. Learned, S. Matsuno, M. D. Messier, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, K. Nishikawa, Y. Oyama, Y. Totsuka, A. T. Suzuki, T. Nakaya, H. Tanaka, M. Yokoyama, T. J. Haines, S. Dazeley, R. Svoboda, A. Habig, Y. Fukuda, T. Sato, Y. Itow, T. Koike, T. Tanaka, C. K. Jung, T. Kato, K. Kobayashi, C. McGrew, A. Sarrat, R. Terri, C. Yanagisawa, N. Tamura, Y. Idehara, M. Sakuda, M. Sugihara, Y. Kuno, M. Yoshida, S. B. Kim, B. S. Yang, T. Ishizuka, H. Okazawa, Y. Choi, H. K. Seo, Y. Gando, K. Inoue, Y. Furuse, H. Ishii, K. Nishijima, Y. Watanabe, M. Koshiba, S. Chen, Z. Deng, Y. Liu, D. Kielczewska, H. Berns, K. K. Shiraishi, E. Thrane, R. J. Wilkes

*この研究の対応する著者

研究成果: Article査読

14 被引用数 (Scopus)

抄録

We consider νμ→ντ oscillations in the context of the mass varying neutrino (MaVaN) model, where the neutrino mass can vary depending on the electron density along the flight path of the neutrino. Our analysis assumes a mechanism with dependence only upon the electron density, hence ordinary matter density, of the medium through which the neutrino travels. Fully-contained, partially-contained and upward-going muon atmospheric neutrino data from the Super-Kamiokande detector, taken from the entire SK-I period of 1489 live days, are compared to MaVaN model predictions. We find that, for the case of 2-flavor oscillations, and for the specific models tested, oscillation independent of electron density is favored over density dependence. Assuming maximal mixing, the best-fit case and the density-independent case do not differ significantly.

本文言語English
論文番号052001
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
77
5
DOI
出版ステータスPublished - 2008 3月 3
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

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