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Search for trilepton nucleon decay via p →e+νν and p →μ+νν in the Super-Kamiokande experiment

  • V. Takhistov
  • , K. Abe
  • , Y. Haga
  • , Y. Hayato
  • , M. Ikeda
  • , K. Iyogi
  • , J. Kameda
  • , Y. Kishimoto
  • , M. Miura
  • , S. Moriyama
  • , M. Nakahata
  • , Y. Nakano
  • , S. Nakayama
  • , H. Sekiya
  • , M. Shiozawa
  • , Y. Suzuki
  • , A. Takeda
  • , H. Tanaka
  • , T. Tomura
  • , K. Ueno
  • R. A. Wendell, T. Yokozawa, T. Irvine, T. Kajita, I. Kametani, K. Kaneyuki, K. P. Lee, T. McLachlan, Y. Nishimura, E. Richard, K. Okumura, L. Labarga, P. Fernandez, S. Berkman, H. A. Tanaka, S. Tobayama, J. Gustafson, E. Kearns, J. L. Raaf, J. L. Stone, L. R. Sulak, M. Goldhaber, G. Carminati, W. R. Kropp, S. Mine, P. Weatherly, A. Renshaw, M. B. Smy, H. W. Sobel, K. S. Ganezer, B. L. Hartfiel, J. Hill, W. E. Keig, N. Hong, J. Y. Kim, I. T. Lim, T. Akiri, A. Himmel, K. Scholberg, C. W. Walter, T. Wongjirad, T. Ishizuka, S. Tasaka, J. S. Jang, J. G. Learned, S. Matsuno, S. N. Smith, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. T. Suzuki, Y. Takeuchi, C. Bronner, S. Hirota, K. Huang, K. Ieki, T. Kikawa, A. Minamino, A. Murakami, T. Nakaya, K. Suzuki, S. Takahashi, K. Tateishi, Y. Fukuda, K. Choi, Y. Itow, G. Mitsuka, P. Mijakowski, J. Hignight, J. Imber, C. K. Jung, C. Yanagisawa, H. Ishino, A. Kibayashi, Y. Koshio, T. Mori, M. Sakuda, R. Yamaguchi, T. Yano, Y. Kuno, R. Tacik, S. B. Kim, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, Y. Suda, Y. Totsuka, M. Yokoyama, K. Martens, Ll Marti, M. R. Vagins, J. F. Martin, P. De Perio, A. Konaka, M. J. Wilking, S. Chen, Y. Zhang, K. Connolly, R. J. Wilkes

Research output: Contribution to journalArticlepeer-review

Abstract

The trilepton nucleon decay modes p→e+νν and p→μ+νν violate |Δ(B-L)| by two units. Using data from a 273.4 ktyr exposure of Super-Kamiokande a search for these decays yields a fit consistent with no signal. Accordingly, lower limits on the partial lifetimes of τp→e+νν>1.7×1032 years and τp→μ+νν>2.2×1032 years at a 90% confidence level are obtained. These limits can constrain Grand Unified Theories which allow for such processes.

Original languageEnglish
Article number101801
JournalPhysical review letters
Volume113
Issue number10
DOIs
Publication statusPublished - 2014 Sept 4
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy

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