Search for nucleon decay via modes favored by supersymmetric grand unification models in Super-Kamiokande-I

K. Kobayashi, M. Earl, Y. Ashie, J. Hosaka, K. Ishihara, Y. Itow, J. Kameda, Y. Koshio, A. Minamino, C. Mitsuda, M. Miura, S. Moriyama, M. Nakahata, T. Namba, R. Nambu, Y. Obayashi, M. Shiozawa, Y. Suzuki, Y. Takeuchi, K. TakiS. Yamada, M. Ishitsuka, S. Nakayama, K. Okumura, W. Wang, T. Ishii, T. Kobayashi, T. Maruyama, K. Nakamura, A. T. Suzuki, M. Hasegawa, K. Hayashi, T. Morita, T. Sasaki, S. Ueda, S. Yamamoto, S. Hatakeyama, Y. Fukuda, T. Kato, K. Miyano, M. Yoshida, S. B. Kim, Y. Choi, H. K. Seo, K. Inoue, A. T. Suzuki, Y. Nakajima, T. Harada, Y. Watanabe, K. K. Shiraishi

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112 Citations (Scopus)

Abstract

We report the results for nucleon decay searches via modes favored by supersymmetric grand unified models in Super-Kamiokande. Using 1489 days of full Super-Kamiokande-I data, we searched for p→ν̄K+, n→ν̄K0, p→μ+K0, and p→e+K0 modes. We found no evidence for nucleon decay in any of these modes. We set lower limits of partial nucleon lifetime 2.3×1033, 1.3×1032, 1.3×1033, and 1.0×1033years at 90% confidence level for p→ν̄K+, n→ν̄K0, p→μ+K0, and p→e+K0 modes, respectively. These results give a strong constraint on supersymmetric grand unification models.

Original languageEnglish
Article number052007
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume72
Issue number5
DOIs
Publication statusPublished - Sept 1 2005

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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