Search for proton decay via $p\rightarrow{e^+η}$ and $p\rightarrow{μ^+η}$ with a 0.37 Mton-year exposure of Super-Kamiokande
Kamiokande Collaboration, N. Taniuchi, K. Abe, S. Abe, Y. Asaoka, C. Bronner, M. Harada, Y. Hayato, K. Hiraide, K. Hosokawa, K. Ieki, M. Ikeda, J. Kameda, Y. Ka… 展开作者
Kamiokande Collaboration, N. Taniuchi, K. Abe, S. Abe, Y. Asaoka, C. Bronner, M. Harada, Y. Hayato, K. Hiraide, K. Hosokawa, K. Ieki, M. Ikeda, J. Kameda, Y. Kanemura, R. Kaneshima, Y. Kashiwagi, Y. Kataoka, S. Miki, S. Mine, M. Miura, S. Moriyama, M. Nakahata, S. Nakayama, Y. Noguchi, G. Pronost, K. Okamoto, K. Sato, H. Sekiya, H. Shiba, K. Shimizu, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, A. Takenaka, H. Tanaka, S. Watanabe, T. Yano, T. Kajita, K. Okumura, T. Tashiro, T. Tomiya, X. Wang, S. Yoshida, G. D. Megias, P. Fernandez, L. Labarga, N. Ospina, B. Zaldivar, B. W. Pointon, E. Kearns, J. Mirabito, J. L. Raaf, L. Wan, T. Wester, J. Bian, N. J. Griskevich, W. R. Kropp, S. Locke, M. B. Smy, H. W. Sobel, V. Takhistov, A. Yankelevich, J. Hill, M. C. Jang, J. Y. Kim, S. H. Lee, I. T. Lim, D. H. Moon, R. G. Park, B. S. Yang, B. Bodur, K. Scholberg, C. W. Walter, A. Beauchêne, L. Bernard, A. Coffani, O. Drapier, S. El Hedri, A. Giampaolo, Th. A. Mueller, A. D. Santos, P. Paganini, R. Rogly, T. Nakamura, J. S. Jang, L. N. Machado, J. G. Learned, K. Choi, N. Iovine, S. Cao, L. H. V. Anthony, D. Martin, N. W. Prouse, M. Scott, A. A. Sztuc, Y. Uchida, V. Berardi, N. F. Calabria, M. G. Catanesi, E. Radicioni, A. Langella, G. De Rosa, G. Collazuol, M. Feltre, F. Iacob, M. Lamoureux, M. Mattiazzi, L. Ludovici, M. Gonin, L. Périssé, B. Quilain, C. Fujisawa, S. Horiuchi, M. Kobayashi, Y. M. Liu, Y. Maekawa, Y. Nishimura, R. Okazaki, R. Akutsu, M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi, M. Jakkapu, T. Matsubara, T. Nakadaira, K. Nakamura, Y. Oyama, A. Portocarrero Yrey, K. Sakashita, T. Sekiguchi, T. Tsukamoto, N. Bhuiyan, T. Boschi, G. T. Burton, F. Di Lodovico, J. Gao, A. Goldsack, T. Katori, J. Migenda, R. M. Ramsden, M. Taani, Z. Xie, S. Zsoldos, Y. Kotsar, H. Ozaki, A. T. Suzuki, Y. Takagi, Y. Takeuchi, S. Yamamoto, H. Zhong, J. Feng, L. Feng, S. Han, J. R. Hu, Z. Hu, M. Kawaue, T. Kikawa, M. Mori, T. Nakaya, R. A. Wendell, K. Yasutome, S. J. Jenkins, N. McCauley, P. Mehta, A. Tarrant, M. J. Wilking, Y. Fukuda, Y. Itow, H. Menjo, K. Ninomiya, Y. Yoshioka, J. Lagoda, M. Mandal, P. Mijakowski, Y. S. Prabhu, J. Zalipska, M. Jia, J. Jiang, C. K. Jung, W. Shi, C. Yanagisawa, Y. Hino, H. Ishino, S. Ito, H. Kitagawa, Y. Koshio, W. Ma, F. Nakanishi, S. Sakai, T. Tada, T. Tano, T. Ishizuka, G. Barr, D. Barrow, L. Cook, S. Samani, D. Wark, A. Holin, F. Nova, S. Jung, J. Y. Yang, J. Yoo, J. E. P. Fannon, L. Kneale, M. Malek, J. M. McElwee, O. Stone, P. Stowell, M. D. Thiesse, L. F. Thompson, S. T. Wilson, H. Okazawa, S. M. Lakshmi, S. B. Kim, E. Kwon, M. W. Lee, J. W. Seo, I. Yu, A. K. Ichikawa, K. D. Nakamura, S. Tairafune, K. Nishijima, M. Koshiba, A. Eguchi, S. Goto, K. Iwamoto, Y. Mizuno, T. Muro, K. Nakagiri, Y. Nakajima, S. Shima, E. Watanabe, M. Yokoyama, P. de Perio, S. Fujita, C. Jesús-Valls, K. Martens, Ll. Marti, K. M. Tsui, M. R. Vagins, J. Xia, S. Izumiyama, M. Kuze, R. Matsumoto, K. Terada, R. Asaka, M. Inomoto, M. Ishitsuka, H. Ito, T. Kinoshita, Y. Ommura, N. Shigeta, M. Shinoki, T. Suganuma, K. Yamauchi, T. Yoshida, Y. Nakano, J. F. Martin, H. A. Tanaka, T. Towstego, R. Gaur, V. Gousy-Leblanc, M. Hartz, A. Konaka, X. Li, S. Chen, Y. Wu, B. D. Xu, A. Q. Zhang, B. Zhang, M. Posiadala-Zezula, S. B. Boyd, R. Edwards, D. Hadley, M. Nicholson, M. O'Flaherty, B. Richards, A. Ali, B. Jamieson, S. Amanai, A. Minamino, G. Pintaudi, S. Sano, R. Sasaki, R. Shibayama, R. Shimamura, S. Suzuki, K. Wada
A search for proton decay into $e^+/μ^+$ and a $η$ meson has been performed using data from a 0.373 Mton$\cdot$year exposure (6050.3 live days) of Super-Kamiokande. Compared to previous searches this work introduces an improved model of the intranuclear $η$ interaction cross section, resulting in a factor of two reduction in uncertainties from this source and $\sim$10\% increase in signal efficiency. No significant data excess was found above the expected number of atmospheric neutrino background events resulting in no indication of proton decay into either mode. Lower limits on the proton partial lifetime of $1.4\times\mathrm{10^{34}~years}$ for $p\rightarrow e^+η$ and $7.3\times\mathrm{10^{33}~years}$ for $p\rightarrow μ^+η$ at the 90$\%$ C.L. were set. These limits are around 1.5 times longer than our previous study and are the most stringent to date.
Search for nucleon decay via $p\rightarrowνπ^{+}$ and $n\rightarrowνπ^{0}$ in 0.484 Mton-year of Super-Kamiokande data
Seoul National University（首尔大学）；Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo（东京大学宇宙线研究所神冈观测站）；Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo（东京大学先进研究院 Kavli宇宙物理数学研究所）
Probing supernova shock waves and neutrino flavor transitions in next-generation water-Cherenkov detectors
目前的几个项目旨在建造一个大型水切伦科夫探测器，其基准体积比目前的超级神冈实验大20倍。这些项目包括亨德森矿（科罗拉多州）的地下核子衰变和中微子观测站（UNO），Tochibora矿（日本）的Hyper-Kamiokande（HK）探测器，以及Frejus站点（欧洲）的兆吨级物理学（MEMPHYS）探测器。我们研究的物理潜力的参考下一代探测器（0.4兆吨的基准质量）在提供信息的超新星中微子味过渡与前所未有的统计。在讨论了我们的计算的成分，我们计算中微子事件率从逆β衰变（$\barν_e p\to e^+ n $），电子的弹性散射，并在氧散射，强调其时间谱，这可能编码组合信息的中微子振荡参数和超新星的前向（可能是反向）冲击波。特别是，我们表明，适当比例的低到高的能量事件可以忠实地监测沿冲击波剖面的中微子穿越概率的时间演化。我们还讨论了一些背景问题的超新星遗迹中微子的检测，添加和不添加钆。
Search for proton decay via $p \to e^{+}π^{0}π^{0}$ and $p \to μ^{+}π^{0}π^{0}$ in 0.401 megaton-years exposure of Super-Kamiokande I-V
Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo（东京大学宇宙线研究所神冈观测站）；Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo（东京大学前沿研究院理研宇宙数学宇宙科学研究所）；Department of Physics, University of Tokyo（东京大学物理学系）
First observation of electron antineutrinos from nuclear reactors at Super-Kamiokande
Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo（神冈观测站，宇宙线研究所，东京大学）；Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo（汤川理论物理与宇宙学研究所（WPI），东京大学高等研究院，东京大学）
Search for the $^{16}\text{O}(ppp) \rightarrow ^{13}\text{C} π^+ π^+ e^+$ Decay Mode in Super-Kamiokande Using Machine Learning Techniques
Kyoto University（京都大学）；Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo（东京大学宇宙线研究所神冈观测站）；Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo（东京大学前沿研究机构宇宙物理与数学柯尔维特研究所）
