Search for Nucleon and Dinucleon Decays with an Invisible Particle and a Charged Lepton in the Final State at the Super-Kamiokande Experiment.

Published

Journal Article

Search results for nucleon decays p→e^{+}X, p→μ^{+}X, n→νγ (where X is an invisible, massless particle) as well as dinucleon decays np→e^{+}ν, np→μ^{+}ν, and np→τ^{+}ν in the Super-Kamiokande experiment are presented. Using single-ring data from an exposure of  273.4  kton·yr, a search for these decays yields a result consistent with no signal. Accordingly, lower limits on the partial lifetimes of τ_{p→e^{+}X}>7.9×10^{32} yr, τ_{p→μ^{+}X}>4.1×10^{32} yr, τ_{n→νγ}>5.5×10^{32} yr, τ_{np→e^{+}ν}>2.6×10^{32}  yr, τ_{np→μ^{+}ν}>2.2×10^{32} yr, and τ_{np→τ^{+}ν}>2.9×10^{31} yr at a 90% confidence level are obtained. Some of these searches are novel.

Full Text

Duke Authors

Cited Authors

  • Takhistov, V; Abe, K; Haga, Y; Hayato, Y; Ikeda, M; Iyogi, K; Kameda, J; Kishimoto, Y; Miura, M; Moriyama, S; Nakahata, M; Nakajima, T; Nakano, Y; Nakayama, S; Orii, A; Sekiya, H; Shiozawa, M; Takeda, A; Tanaka, H; Tomura, T; Wendell, RA; Irvine, T; Kajita, T; Kametani, I; Kaneyuki, K; Nishimura, Y; Richard, E; Okumura, K; Labarga, L; Fernandez, P; Gustafson, J; Kachulis, C; Kearns, E; Raaf, JL; Stone, JL; Sulak, LR; Berkman, S; Nantais, CM; Tanaka, HA; Tobayama, S; Goldhaber, M; Carminati, G; Kropp, WR; Mine, S; Weatherly, P; Renshaw, A; Smy, MB; Sobel, HW; Ganezer, KS; Hartfiel, BL; Hill, J; Hong, N; Kim, JY; Lim, IT; Himmel, A; Li, Z; Scholberg, K; Walter, CW; Wongjirad, T; Ishizuka, T; Tasaka, S; Jang, JS; Learned, JG; Matsuno, S; Smith, SN; Friend, M; Hasegawa, T; Ishida, T; Ishii, T; Kobayashi, T; Nakadaira, T; Nakamura, K; Oyama, Y; Sakashita, K; Sekiguchi, T; Tsukamoto, T; Suzuki, AT; Takeuchi, Y; Yano, T; Hirota, S; Huang, K; Ieki, K; Kikawa, T; Minamino, A; Nakaya, T; Suzuki, K; Takahashi, S; Fukuda, Y; Choi, K; Itow, Y; Suzuki, T; Mijakowski, P; Frankiewicz, K; Hignight, J; Imber, J; Jung, CK; Li, X; Palomino, JL; Wilking, MJ; Yanagisawa, C; Ishino, H; Kayano, T; Kibayashi, A; Koshio, Y; Mori, T; Sakuda, M; Kuno, Y; Tacik, R; Kim, SB; Okazawa, H; Choi, Y; Nishijima, K; Koshiba, M; Suda, Y; Totsuka, Y; Yokoyama, M; Bronner, C; Hartz, M; Martens, K; Marti, L; Suzuki, Y; Vagins, MR; Martin, JF; de Perio, P; Konaka, A; Chen, S; Zhang, Y; Wilkes, RJ; Super-Kamiokande Collaboration,

Published Date

  • September 18, 2015

Published In

Volume / Issue

  • 115 / 12

Start / End Page

  • 121803 -

PubMed ID

  • 26430987

Pubmed Central ID

  • 26430987

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.115.121803

Language

  • eng