Search for nucleon decay into charged antilepton plus meson in Super-Kamiokande i and II

H. Nishino, 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, Kota UeshimaH. Watanabe, S. Yamada, S. Hazama, I. Higuchi, C. Ishihara, H. Kaji, T. Kajita, K. Kaneyuki, G. Mitsuka, 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, K. S. Ganezer, J. Hill, W. E. Keig, J. S. Jang, J. Y. Kim, I. T. Lim, J. B. 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, M. R. Vagins, S. Chen, Y. Heng, J. Liu, Z. Yang, H. Zhang, D. Kielczewska, K. Connolly, E. Thrane, R. J. Wilkes

研究成果: Article査読

84 被引用数 (Scopus)

抄録

Searches for a nucleon decay into a charged antilepton (e + or μ +) plus a light meson (π0, π -, η, ρ0, ρ -, ω) were performed using the Super-Kamiokande I and II data. Twelve nucleon decay modes were searched for. The total exposure is 140.9kiloton•years, which includes a 91.7kiloton•year exposure (1489.2 live days) of Super-Kamiokande-I and a 49.2kiloton•year exposure (798.6 live days) of Super-Kamiokande II. The number of candidate events in the data was consistent with the atmospheric neutrino background expectation. No significant evidence for a nucleon decay was observed in the data. Thus, lower limits on the nucleon partial lifetime at 90% confidence level were obtained. The limits range from 3.6×1031 to 8.2×1033years, depending on the decay modes.

本文言語English
論文番号112001
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
85
11
DOI
出版ステータスPublished - 2012 6 5

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)

フィンガープリント

「Search for nucleon decay into charged antilepton plus meson in Super-Kamiokande i and II」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル