{"paper":{"title":"Search for dinucleon decay into pions at Super-Kamiokande","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Himmel, A. Kibayashi, A. Konaka, A. Minamino, A. Orii, A. Renshaw, A. Takeda, B. L. Hartfiel, C. Bronner, C. K. Jung, C. W. Walter, C. Yanagisawa, E. Kearns, E. Richard, G. Carminati, G. Mitsuka, H. A. Tanaka, H. Ishino, H. Okazawa, H. Sekiya, H. Tanaka, H. W. Sobel, I. Kametani, I. T. Lim, J. F. Martin, J. G. Learned, J. Gustafson, J. Hignight, J. Hill, J. Imber, J. Kameda, J. L. Palomino, J. L. Raaf, J. L. Stone, J. S. Jang, J. Y. Kim, K. Abe, K. Choi, K. Huang, K. Ieki, K. Iyogi, K. Kaneyuki, K. Martens, K. Nakamura, K. Nishijima, K. Okumura, K. Sakashita, K. Scholberg, K. S. Ganezer, K. Suzuki, L. Labarga, Ll. Marti, L. R. Sulak, M. B. Smy, M. Goldhaber, M. Ikeda, M. J. Wilking, M. Koshiba, M. Miura, M. Nakahata, M. R. Vagins, M. Sakuda, M. Shiozawa, M. Yokoyama, N. Hong, P. de Perio, P. Fernandez, P. Mijakowski, P. Weatherly, R. A. Wendell, R. J. Wilkes, R. Tacik, S. Berkman, S. B. Kim, S. Chen, S. Hirota, S. Matsuno, S. Mine, S. Moriyama, S. Nakayama, S. N. Smith, S. Takahashi, S. Tasaka, S. Tobayama, T. Akiri, T. Hasegawa, T. Irvine, T. Ishida, T. Ishii, T. Ishizuka, T. Kajita, T. Kayano, T. Kikawa, T. Kobayashi, T. Mori, T. Nakadaira, T. Nakajima, T. Nakaya, T. Sekiguchi, T. Suzuki, T. Tomura, T. TsukamotoA. T. Suzuki, T. Wongjirad, T. Yano, V. Takhistov, W. R. Kropp, Y. Choi, Y. Fukuda, Y. Haga, Y. Hayato, Y. Itow, Y. Kishimoto, Y. Koshio, Y. Kuno, Y. Nakano, Y. Nishimura, Y. Oyama, Y. Suda, Y. Suzuki, Y. Takeuchi, Y. Totsuka, Y. Zhang","submitted_at":"2015-04-04T19:25:15Z","abstract_excerpt":"A search for dinucleon decay into pions with the Super-Kamiokande detector has been performed with an exposure of 282.1 kiloton-years. Dinucleon decay is a process that violates baryon number by two units. We present the first search for dinucleon decay to pions in a large water Cherenkov detector. The modes $^{16}$O$(pp) \\rightarrow$ $^{14}$C$\\pi^{+}\\pi^{+}$, $^{16}$O$(pn) \\rightarrow$ $^{14}$N$\\pi^{+}\\pi^{0}$, and $^{16}$O$(nn) \\rightarrow$ $^{14}$O$\\pi^{0}\\pi^{0}$ are investigated. No significant excess in the Super-Kamiokande data has been found, so a lower limit on the lifetime of the pro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.01041","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}