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51. Solar Neutrino Measurements in Super-Kamiokande-IV

Author: Collaboration, Super-Kamiokande, Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakajima, T., Nakayama, S., Orii, A., Sekiya, H., Shiozawa, M., Sonoda, Y., Takeda, A., Tanaka, H., Takenaga, Y., Tasaka, S., Tomura, T., Ueno, K., Yokozawa, T., Akutsu, R., Irvine, T., Kaji, H., Kajita, T., Kametani, I., Kaneyuki, K., Lee, K. P., Nishimura, Y., McLachlan, T., Okumura, K., Richard, E., Labarga, L., Fernandez, P., Blaszczyk, F. d. M., Gustafson, J., Kachulis, C., Kearns, E., Raaf, 32 J. L., Stone, J. L., Sulak, 32 L. R., Berkman, S., Tobayama, S., Goldhaber, M., Bays, K., Carminati, G., Griskevich, N. J., Kropp, W. R., Mine, S., Renshaw, A., Smy, M. B., Sobel, H. W., Takhistov, V., Weatherly, P., Ganezer, K. S., Hartfiel, B. L., Hill, J., Keig, W. E., Hong, N., Kim, J. Y., Lim, I. T., Park, R. G., Akiri, T., Albert, J. B., Himmel, A., Li, Z., O'Sullivan, E., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Nakamura, T., Jang, J. S., Choi, K., Learned, J. G., Matsuno, S., Smith, S. N., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Nakano, Y., Suzuki, A. T., Takeuchi, Y., Yano, T., Cao, S. V., Hayashino, T., Hiraki, T., Hirota, S., Huang, K., Ieki, K., Jiang, M., Kikawa, T., Minamino, A., Murakami, A., Nakaya, T., Patel, N. D., Suzuki, K., Takahashi, S., Wendell, R. A., Fukuda, Y., Itow, Y., Mitsuka, G., Muto, F., Suzuki, T., Mijakowski, P., Frankiewicz, K., Hignight, J., Imber, J., Jung, C. K., Li, X., Palomino, J. L., Santucci, G., Taylor, I., Vilela, C., Wilking, M. J., Yanagisawa, C., Fukuda, D., Ishino, H., Kayano, T., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Takeuchi, J., Yamaguchi, R., Kuno, Y., Tacik, R., Kim, S. B., Okazawa, H., Choi, Y., Ito, K., Nishijima, K., Koshiba, M., Totsuka, Y., Suda, Y., Yokoyama, M., Bronner, C., Calland, R. G., Hartz, M., Martens, K., Obayashi, Y., Suzuki, Y., Vagins, M. R., Nantais, C. M., Martin, J. F., de Perio, P., Tanaka, H. A., Konaka, A., Chen, S., Sui, H., Wan, L., Yang, Z., Zhang, H., Zhang, Y., Connolly, K., Dziomba, M., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract: Upgraded electronics, improved water system dynamics, better calibration and analysis techniques allowed Super-Kamiokande-IV to clearly observe very low-energy 8B solar neutrino interactions, with recoil electron kinetic energies as low as 3.49 MeV. Super-Kamiokande-IV data-taking began in September of 2008; this paper includes data until February 2014, a total livetime of 1664 days. The measured solar neutrino flux is (2.308+-0.020(stat.) + 0.039-0.040(syst.)) x 106/(cm2sec) assuming no oscillations. The observed recoil electron energy spectrum is consistent with no distortions due to neutrino oscillations. An extended maximum likelihood fit to the amplitude of the expected solar zenith angle variation of the neutrino-electron elastic scattering rate in SK-IV results in a day/night asymmetry of (-3.6+-1.6(stat.)+-0.6(syst.))%. The SK-IV solar neutrino data determine the solar mixing angle as sin2 theta_12 = 0.327+0.026-0.031, all SK solar data (SK-I, SK-II, SK III and SKIV) measures this angle to be sin2 theta_12 = 0.334+0.027-0.023, the determined mass-squared splitting is Delta m2_21 = 4.8+1.5-0.8 x10-5 eV2., Comment: Submitted to Physical Review D; 23 pages, 40 figures
Published: 2016
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52. Metal-Stimulated Interleukin-6 Production Through a Proton-Sensing Receptor, Ovarian Cancer G Protein-Coupled Receptor 1, in Human Bronchial Smooth Muscle Cells: A Response Inhibited by Dexamethasone

Author: Kadowaki M, Sato K, Kamio H, Kumagai M, Sato R, Nyui T, Umeda Y, Waseda Y, Anzai M, Aoki-Saito H, Koga Y, Hisada T, Tomura H, Okajima F, and Ishizuka T
Subjects: cobalt, nickel, proton, cytokine, glucocorticoid, asthma, Pathology, RB1-214, Therapeutics. Pharmacology, RM1-950
Abstract: Maiko Kadowaki,1,&ast; Koichi Sato,2,&ast; Hisashi Kamio,3 Makoto Kumagai,3 Rikishi Sato,3 Takafumi Nyui,3 Yukihiro Umeda,1 Yuko Waseda,1 Masaki Anzai,1 Haruka Aoki-Saito,4 Yasuhiko Koga,4 Takeshi Hisada,5 Hideaki Tomura,6 Fumikazu Okajima,3 Tamotsu Ishizuka1 1Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, 910-1193, Japan; 2Laboratory of Signal Transduction, Institute for Molecular and Cellular Regulation, Gunma University, Maebeshi, 371-8512, Japan; 3Laboratory of Signal Transduction, Faculty of Pharmaceutical Sciences, Aomori University, Aomori, 030-0943, Japan; 4Department of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebeshi, 371-8511, Japan; 5Gunma University Graduate School of Health Sciences, Maebeshi, 371-8514, Japan; 6Laboratory of Cell Signaling Regulation, Division of Life Science, School of Agriculture, Meiji University, Kawasaki, 214-8571, Japan&ast;These authors contributed equally to this workCorrespondence: Tamotsu IshizukaThird Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji, Fukui, 910-1193, JapanTel +81-776-61-8355Fax +81-776-61-8111Email tamotsui@u-fukui.ac.jpPurpose: Human bronchial smooth muscle cells (BSMCs) contribute to airway obstruction and hyperresponsiveness in patients with bronchial asthma. BSMCs also generate cytokines and matricellular proteins in response to extracellular acidification through the ovarian cancer G protein-coupled receptor 1 (OGR1). Cobalt (Co) and nickel (Ni) are occupational agents, which cause occupational asthma. We examined the effects of Co and Ni on interleukin-6 (IL-6) secretion by human BSMCs because these metals may act as ligands of OGR1.Methods: Human BSMCs were incubated in Dulbecco’s Modified Eagle Medium (DMEM) containing 0.1% bovine serum albumin (BSA) (0.1% BSA-DMEM) for 16 hours and stimulated for the indicated time by exchanging the medium with 0.1% BSA-DMEM containing any of the metals or pH-adjusted 0.1% BSA-DMEM. IL-6 mRNA expression was quantified via reverse transcription polymerase chain reaction (RT-PCR) using the real-time TaqMan technology. IL-6 was measured using an enzyme-linked immunosorbent assay. Dexamethasone (DEX) was added 30 minutes before each stimulation. To knock down the expression of OGR1 in BSMCs, small interfering RNA (siRNA) targeting OGR1 (OGR1-siRNA) was transfected to the cells and non-targeting siRNA (NT-siRNA) was used as a control.Results: Co and Ni both significantly increased IL-6 secretion in human BSMCs at 300 μM. This significant increase in IL-6 mRNA expression was observed 5 hours after stimulation. BSMCs transfected with OGR1-siRNA produced less IL-6 than BSMCs transfected with NT-siRNA in response to either Co or Ni stimulation. DEX inhibited Co- and Ni-stimulated IL-6 secretion by human BSMCs as well as pH 6.3-stimulated IL-6 secretion in a dose-dependent manner. DEX did not decrease phosphorylation of ERK1/2, p38 MAP kinase, and NF-κB p65 induced by either Co or Ni stimulation.Conclusion: Co and Ni induce secretion of IL-6 in human BSMCs through activation of OGR1. Co- and Ni-stimulated IL-6 secretion is inhibited by DEX.Keywords: cobalt, nickel, proton, cytokine, glucocorticoid, asthma
Published: 2021

53. Real-Time Supernova Neutrino Burst Monitor at Super-Kamiokande

Author: Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Tanaka, H., Tomura, T., Ueno, K., Wendell, R. A., Yokozawa, T., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Lee, K. P., McLachlan, T., Nishimura, Y., Richard, E., Okumura, K., Labarga, L., Fernandez, P., Berkman, S., Tanaka, H. A., Tobayama, S., Gustafson, J., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhaber, M., Carminati, G., Kropp, W. R., Mine, S., Weatherly, P., Renshaw, A., Smy, M. B., Sobel, H. W., Takhistov, V., Ganezer, K. S., Hartfiel, B. L., Hill, J., Keig, W. E., Hong, N., Kim, J. Y., Lim, I. T., Akiri, T., Himmel, A., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J. S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Kikawa, T., Minamino, A., Murakami, A., Nakaya, T., Suzuki, K., Takahashi, S., Tateishi, K., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C. K., Yanagisawa, C., Wilking, M. J., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yamaguchi, R., Yano, T., Kuno, Y., Tacik, R., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M. R., Martin, J. F., de Perio, P., Konaka, A., Chen, S., Zhang, Y., Connolly, K., and Wilkes, R. J.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics
Abstract: We present a real-time supernova neutrino burst monitor at Super-Kamiokande (SK). Detecting supernova explosions by neutrinos in real time is crucial for giving a clear picture of the explosion mechanism. Since the neutrinos are expected to come earlier than light, a fast broadcasting of the detection may give astronomers a chance to make electromagnetic radiation observations of the explosions right at the onset. The role of the monitor includes a fast announcement of the neutrino burst detection to the world and a determination of the supernova direction. We present the online neutrino burst detection system and studies of the direction determination accuracy based on simulations at SK., Comment: 15 pages, 8 figures, accepted for publication in Astroparticle Physics
Published: 2016
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54. Measurements of the atmospheric neutrino flux by Super-Kamiokande: energy spectra, geomagnetic effects, and solar modulation

Author: Richard, E., Okumura, K., 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, R. A., Akutsu, R., Irvine, T., Kajita, T., Kaneyuki, K., Nishimura, Y., Labarga, L., Fernandez, P., Gustafson, J., Kachulis, C., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Berkman, S., Nantais, C. M., Tanaka, H. A., Tobayama, S., Goldhaber, M., Kropp, W. R., Mine, S., Weatherly, P., Smy, M. B., Sobel, H. W., Takhistov, V., Ganezer, K. S., Hartfiel, B. L., Hill, J., Hong, N., Kim, J. Y., Lim, I. T., Park, R. G., Himmel, A., Li, Z., OSullivan, E., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J. S., Learned, J. G., Matsuno, S., Smith, S. N., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Yano, T., Cao, S. V., Hiraki, T., Hirota, S., Huang, K., Kikawa, T., Minamino, A., Nakaya, T., Suzuki, K., Fukuda, Y., Choi, K., Itow, Y., Suzuki, T., Mijakowski, P., Frankiewicz, K., Hignight, J., Imber, J., Jung, C. K., Li, X., Palomino, J. L., Wilking, M. J., Yanagisawa, C., Fukuda, D., Ishino, H., Kayano, T., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Xu, C., Kuno, Y., Tacik, R., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Suda, Y., Yokoyama, M., Bronner, C., Hartz, M., Martens, K., Marti, Ll., Suzuki, Y., Vagins, M. R., Martin, J. F., Konaka, A., Chen, S., Zhang, Y., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics, Physics - Instrumentation and Detectors
Abstract: A comprehensive study on the atmospheric neutrino flux in the energy region from sub-GeV up to several TeV using the Super-Kamiokande water Cherenkov detector is presented in this paper. The energy and azimuthal spectra of the atmospheric ${\nu}_e+{\bar{\nu}}_e$ and ${\nu}_{\mu}+{\bar{\nu}}_{\mu}$ fluxes are measured. The energy spectra are obtained using an iterative unfolding method by combining various event topologies with differing energy responses. The azimuthal spectra depending on energy and zenith angle, and their modulation by geomagnetic effects, are also studied. A predicted east-west asymmetry is observed in both the ${\nu}_e$ and ${\nu}_{\mu}$ samples at 8.0 {\sigma} and 6.0 {\sigma} significance, respectively, and an indication that the asymmetry dipole angle changes depending on the zenith angle was seen at the 2.2 {\sigma} level. The measured energy and azimuthal spectra are consistent with the current flux models within the estimated systematic uncertainties. A study of the long-term correlation between the atmospheric neutrino flux and the solar magnetic activity cycle is also performed, and a weak indication of a correlation was seen at the 1.1 {\sigma} level, using SK I-IV data spanning a 20 year period. For particularly strong solar activity periods known as Forbush decreases, no theoretical prediction is available, but a deviation below the typical neutrino event rate is seen at the 2.4 {\sigma} level., Comment: 30 pages, 31 figures
Published: 2015
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55. Search for Nucleon and Dinucleon Decays with an Invisible Particle and a Charged Lepton in the Final State at the Super-Kamiokande Experiment

Author: 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, R. A., 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, J. L., Stone, J. L., Sulak, L. R., Berkman, S., Nantais, C. M., Tanaka, H. A., Tobayama, S., Goldhaber, M., Carminati, G., Kropp, W. R., Mine, S., Weatherly, P., Renshaw, A., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hartfiel, B. L., Hill, J., Hong, N., Kim, J. Y., Lim, I. T., Himmel, A., Li, Z., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J. S., Learned, J. G., Matsuno, S., Smith, S. N., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., 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, C. K., Li, X., Palomino, J. L., Wilking, M. J., Yanagisawa, C., Ishino, H., Kayano, T., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Kuno, Y., Tacik, R., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Yokoyama, M., Bronner, C., Hartz, M., Martens, K., Marti, Ll., Suzuki, Y., Vagins, M. R., Martin, J. F., de Perio, P., Konaka, A., Chen, S., Zhang, Y., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: Search results for nucleon decays $p \rightarrow e^+X$, $p \rightarrow \mu^+X$, $n \rightarrow \nu\gamma$ (where $X$ is an invisible, massless particle) as well as dinucleon decays $np \rightarrow e^+\nu$, $np \rightarrow \mu^+\nu$ and $np \rightarrow \tau^+\nu$ in the Super-Kamiokande experiment are presented. Using single-ring data from an exposure of 273.4 kton $\cdot$ years, a search for these decays yields a result consistent with no signal. Accordingly, lower limits on the partial lifetimes of $\tau_{p \rightarrow e^+X} > 7.9 \times 10^{32}$ years, $\tau_{p \rightarrow \mu^+X} > 4.1 \times 10^{32}$ years, $\tau_{n \rightarrow \nu\gamma} > 5.5 \times 10^{32}$ years, $\tau_{np \rightarrow e^+\nu} > 2.6 \times 10^{32}$ years, $\tau_{np \rightarrow \mu^+\nu} > 2.2 \times 10^{32}$ years and $\tau_{np \rightarrow \tau^+\nu} > 2.9 \times 10^{31}$ years at a $90 \% $ confidence level are obtained. Some of these searches are novel., Comment: 6 pages, 1 figure; minor corrections, length shortened, matches published version
Published: 2015
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56. Search for dinucleon decay into pions at Super-Kamiokande

Author: Gustafson, J., 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, R. A., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Nishimura, Y., Richard, E., Okumura, K., Labarga, L., Fernandez, P., Berkman, S., Tanaka, H. A., Tobayama, S., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhaber, M., Carminati, G., Kropp, W. R., Mine, S., Weatherly, P., Renshaw, A., Smy, M. B., Sobel, H. W., Takhistov, V., Ganezer, K. S., Hartfiel, B. L., Hill, J., Hong, N., Kim, J. Y., Lim, I. T., Akiri, T., Himmel, A., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J. S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Suzuki, T. TsukamotoA. T., 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., Mitsuka, G., Suzuki, T., Mijakowski, P., Hignight, J., Imber, J., Jung, C. K., Palomino, J. L., Yanagisawa, C., Ishino, H., Kayano, T., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Kuno, Y., Tacik, R., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Yokoyama, M., Bronner, C., Martens, K., Marti, Ll., Suzuki, Y., Vagins, M. R., Martin, J. F., de Perio, P., Konaka, A., Wilking, M. J., Chen, S., Zhang, Y., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: 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 process per oxygen nucleus is determined. These limits are: $\tau_{pp\rightarrow\pi^{+}\pi^{+}} > 7.22 \times 10^{31}$ years, $\tau_{pn\rightarrow\pi^{+}\pi^{0}} > 1.70 \times 10^{32}$ years, and $\tau_{nn\rightarrow\pi^{0}\pi^{0}} > 4.04 \times 10^{32}$ years. The lower limits on each mode are about two orders of magnitude better than previous limits from searches for dinucleon decay in iron., Comment: 20 pages, 17 figures. Accepted for publication in Physical Review D on March 30, 2015
Published: 2015
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57. Search for neutrinos from annihilation of captured low-mass dark matter particles in the Sun by Super-Kamiokande

Author: Collaboration, The Super-Kamiokande, Choi, K., Abe, K., Haga, Y., Hayato, Y., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Tomura, T., Wendell, R. A., Irvine, T., Kajita, 2 T., Kametani, I., Kaneyuki, 2 K., Lee, K. P., Nishimura, Y., Okumura, 2 K., McLachlan, T., Labarga, 2 L., Kearns, E., Raaf, J. L., Stone, 4 J. L., Sulak, L. R., Berkman, 4 S., Tanaka, 5 H. A., Tobayama, 5 S., Goldhaber, M., Carminati, G., Kropp, W. R., Mine, S., Renshaw, A., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Hong, N., Kim, J. Y., Lim, I. T., Akiri, T., Himmel, A., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J. S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Ikeda, M., Kikawa, T., Minamino, A., Nakaya, T., Suzuki, K., Takahashi, S., Fukuda, Y., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C. K., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yano, T., Kuno, Y., Tacik, R., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M. R., Martin, J. F., de Perio, P., Konaka, A., Wilking, M. J., Chen, S., Zhang, Y., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: Super-Kamiokande (SK) can search for weakly interacting massive particles (WIMPs) by detecting neutrinos produced from WIMP annihilations occurring inside the Sun. In this analysis, we include neutrino events with interaction vertices in the detector in addition to upward-going muons produced in the surrounding rock. Compared to the previous result, which used the upward-going muons only, the signal acceptances for light (few-GeV/$c^2$ $\sim$ 200-GeV/$c^2$) WIMPs are significantly increased. We fit 3903 days of SK data to search for the contribution of neutrinos from WIMP annihilation in the Sun. We found no significant excess over expected atmospheric-neutrino background and the result is interpreted in terms of upper limits on WIMP-nucleon elastic scattering cross sections under different assumptions about the annihilation channel. We set the current best limits on the spin-dependent (SD) WIMP-proton cross section for WIMP masses below 200 GeV/$c^2$ (at 10 GeV/$c^2$, 1.49$\times 10^{-39}$ cm$^2$ for $\chi\chi\rightarrow b \bar{b}$ and 1.31$\times 10^{-40}$ cm$^2$ for $\chi\chi\rightarrow\tau^+\tau^-$ annihilation channels), also ruling out some fraction of WIMP candidates with spin-independent (SI) coupling in the few-GeV/$c^2$ mass range.
Published: 2015

58. Test of Lorentz invariance with atmospheric neutrinos

Author: Collaboration, The Super-Kamiokande, Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Tanaka, H., Tomura, T., Ueno, K., Wendell, R. A., Yokozawa, T., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Lee, K. P., McLachlan, T., Nishimura, Y., Richard, E., Okumura, K., Labarga, L., Fernandez, P., Gustafson, J., Kearns, E., Raaf, J. L., Berkman, S., Tanaka, H. A., Tobayama, S., Stone, J. L., Sulak, L. R., Goldhaber, M., Carminati, G., Kropp, W. R., Mine, S., Weatherly, P., Renshaw, A., Smy, M. B., Sobel, H. W., Takhistov, V., Ganezer, K. S., Hartfiel, B. L., Hill, J., Keig, W. E., Hong, N., Kim, J. Y., Lim, I. T., Akiri, T., Himmel, A., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J. S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Kikawa, T., Minamino, A., Murakami, A., Nakaya, T., Suzuki, K., Takahashi, S., Tateishi, K., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C. K., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yamaguchi, R., Yano, T., Kuno, Y., Tacik, R., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M. R., Martin, J. F., de Perio, P., Konaka, A., Wilking, M. J., Chen, S., Zhang, Y., Connolly, K., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: A search for neutrino oscillations induced by Lorentz violation has been performed using 4,438 live-days of Super-Kamiokande atmospheric neutrino data. The Lorentz violation is included in addition to standard three-flavor oscillations using the non-perturbative Standard Model Extension (SME), allowing the use of the full range of neutrino path lengths, ranging from 15 to 12,800 km, and energies ranging from 100 MeV to more than 100 TeV in the search. No evidence of Lorentz violation was observed, so limits are set on the renormalizable isotropic SME coefficients in the $e\mu$, $\mu\tau$, and $e\tau$ sectors, improving the existing limits by up to seven orders of magnitude and setting limits for the first time in the neutrino $\mu\tau$ sector of the SME., Comment: 16 pages, 10 figures, featured with a synopsis: http://physics.aps.org/synopsis-for/10.1103/PhysRevD.91.052003
Published: 2014
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59. Limits on sterile neutrino mixing using atmospheric neutrinos in Super-Kamiokande

Author: Collaboration, The Super-Kamiokande, Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Tanaka, H., Tomura, T., Ueno, K., Wendell, R. A., Yokozawa, T., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Lee, K. P., McLachlan, T., Nishimura, Y., Richard, E., Okumura, K., Labarga, L., Fernandez, P., Berkman, S., Tanaka, H. A., Tobayama, S., Gustafson, J., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhaber, M., Carminati, G., Kropp, W. R., Mine, S., Weatherly, P., Renshaw, A., Smy, M. B., Sobel, H. W., Takhistov, V., Ganezer, K. S., Hartfiel, B. L., Hill, J., Keig, W. E., Hong, N., Kim, J. Y., Lim, I. T., Akiri, T., Himmel, A., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J. S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Kikawa, T., Minamino, A., Murakami, A., Nakaya, T., Suzuki, K., Takahashi, S., Tateishi, K., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C. K., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yamaguchi, R., Yano, T., Kuno, Y., Tacik, R., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M. R., Martin, J. F., de Perio, P., Konaka, A., Wilking, M. J., Chen, S., Zhang, Y., Connolly, K., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: We present limits on sterile neutrino mixing using 4,438 live-days of atmospheric neutrino data from the Super-Kamiokande experiment. We search for fast oscillations driven by an eV$^2$-scale mass splitting and for oscillations into sterile neutrinos instead of tau neutrinos at the atmospheric mass splitting. When performing both these searches we assume that the sterile mass splitting is large, allowing $\sin^2(\Delta m^2 L/4E)$ to be approximated as $0.5$, and we assume that there is no mixing between electron neutrinos and sterile neutrinos ($|U_{e4}|^2 = 0$). No evidence of sterile oscillations is seen and we limit $|U_{\mu4}|^2$ to less than 0.041 and $|U_{\tau4}|^2$ to less than 0.18 for $\Delta m^2 > 0.8$ eV$^2$ at the 90% C.L. in a 3+1 framework. The approximations that can be made with atmospheric neutrinos allow these limits to be easily applied to 3+N models, and we provide our results in a generic format to allow comparisons with other sterile neutrino models., Comment: 23 pages, 12 figures, PRD Editor's Suggestion
Published: 2014
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60. Search for Trilepton Nucleon Decay via $p \rightarrow e^+ \nu \nu$ and $p \rightarrow \mu^+ \nu \nu$ in the Super-Kamiokande Experiment

Author: Takhistov, V., Abe, K., Haga, Y., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Tanaka, H., Tomura, T., Ueno, K., Wendell, R. A., Yokozawa, T., Irvine, T., Kajita, T., Kametani, I., Kaneyuki, K., Lee, K. P., McLachlan, T., Nishimura, Y., Richard, E., Okumura, K., Labarga, L., Fernandez, P., Berkman, S., Tanaka, H. A., Tobayama, S., Gustafson, J., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhaber, M., Carminati, G., Kropp, W. R., Mine, S., Weatherly, P., Renshaw, A., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hartfiel, B. L., Hill, J., Keig, W. E., Hong, N., Kim, J. Y., Lim, I. T., Akiri, T., Himmel, A., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J. S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Kikawa, T., Minamino, A., Murakami, A., Nakaya, T., Suzuki, K., Takahashi, S., Tateishi, K., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C. K., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yamaguchi, R., Yano, T., Kuno, Y., Tacik, R., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Suda, Y., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M. R., Martin, J. F., de Perio, P., Konaka, A., Wilking, M. J., Chen, S., Zhang, Y., Connolly, K., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract: The trilepton nucleon decay modes $p \rightarrow e^+ \nu \nu$ and $p \rightarrow \mu^+ \nu \nu$ violate $|\Delta (B - L)|$ by two units. Using data from a 273.4 kiloton year exposure of Super-Kamiokande a search for these decays yields a fit consistent with no signal. Accordingly, lower limits on the partial lifetimes of $\tau_{p \rightarrow e^+ \nu \nu} > 1.7 \times 10^{32}$ years and $\tau_{p \rightarrow \mu^+ \nu \nu} > 2.2 \times 10^{32}$ years at a $90 \% $ confidence level are obtained. These limits can constrain Grand Unified Theories which allow for such processes.
Published: 2014
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61. Search for Proton Decay via $p \rightarrow \nu K^{+}$ using 260 kiloton$\cdot$year data of Super-Kamiokande

Author: Collaboration, The Super-Kamiokande, Abe, K., Hayato, Y., Iyogi, K., Kameda, J., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Wendell, R. A., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Yokozawa, T., Kaji, H., Kajita, T., Kaneyuki, K., Lee, K. P., Okumura, K., McLachlan, T., Labarga, L., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhaber, M., Bays, K., Carminati, G., Kropp, W. R., Mine, S., Renshaw, A., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J. B., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Ieki, K., Ikeda, M., Kubo, H., Minamino, A., Murakami, A., Nakaya, T., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Miyake, M., Mijakowski, P., Hignight, J., Imber, J., Jung, C. K., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Takeuchi, J., Kuno, Y., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Obayashi, Y., Vagins, M. R., Chen, S., Sui, H., Yang, Z., Zhang, H., Connolly, K., Dziomba, M., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: We have searched for proton decay via $p \rightarrow \nu K^{+}$ using Super-Kamiokande data from April 1996 to February 2013, 260 kiloton$\cdot$year exposure in total. No evidence for this proton decay mode is found. A lower limit of the proton lifetime is set to $5.9 \times 10^{33}$ years at 90% confidence level., Comment: 13 pages with 15 figures, will be submitted to Physical Review D
Published: 2014
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62. Search for dinucleon decay into pions at Super-Kamiokande

Author: Gustafson, J, 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, Berkman, S, Tanaka, HA, Tobayama, S, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Goldhaber, M, Carminati, G, Kropp, WR, Mine, S, Weatherly, P, Renshaw, A, Smy, MB, Sobel, HW, Takhistov, V, Ganezer, KS, Hartfiel, BL, Hill, J, Hong, N, Kim, JY, Lim, IT, Akiri, T, Himmel, A, Scholberg, K, Walter, CW, Wongjirad, T, Ishizuka, T, Tasaka, S, Jang, JS, Learned, JG, Matsuno, S, Smith, SN, 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, Mitsuka, G, Suzuki, T, Mijakowski, P, Hignight, J, Imber, J, Jung, CK, Palomino, JL, Yanagisawa, C, Ishino, H, Kayano, T, Kibayashi, A, Koshio, Y, and Mori, T
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Super-Kamiokande Collaboration, hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Astronomical sciences, Particle and high energy physics
Abstract: A search for the dinucleon decay pp → K+ K+ has been performed using 91.6 kton·yr data from Super-Kamiokande-I. This decay provides a sensitive probe of the R-parity-violating parameter λ112''. A boosted decision tree analysis found no signal candidates in the data. The expected background was 0.28±0.19 atmospheric neutrino induced events and the estimated signal detection efficiency was 12.6%±3.2%. A lower limit of 1.7×10(32) years has been placed on the partial lifetime of the decay O16 → C14K+ K+ at 90% C.L. A corresponding upper limit of 7.8×10(-9) has been placed on the parameter λ112''.
Published: 2015

63. First Indication of Terrestrial Matter Effects on Solar Neutrino Oscillation

Author: Renshaw, A., Abe, K., Hayato, Y., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Tomura, T., Ueno, K., Yokozawa, T., Wendell, R. A., Irvine, T., Kajita, T., Kaneyuki, K., Lee, K. P., Nishimura, Y., Okumura, K., McLachlan, T., Labarga, L., Berkman, S., Tanaka, H. A., Tobayama, S., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhabar, M., Bays, K., Carminati, G., Kropp, W. R., Mine, S., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Hong, N., Kim, J. Y., Lim, I. T., Akiri, T., Himmel, A., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Jang, J. S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Bronner, C., Hirota, S., Huang, K., Ieki, K., Ikeda, M., Kikawa, T., Minamino, A., Nakaya, T., Suzuki, K., Takahashi, S., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C. K., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yano, T., Kuno, Y., Tacik, R., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M. R., Martin, J. F., de Perio, P., Konaka, A., Wilking, M. J., Chen, S., Zhang, Y., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: We report an indication that the elastic scattering rate of solar $^8$B neutrinos with electrons in the Super-Kamiokande detector is larger when the neutrinos pass through the Earth during nighttime. We determine the day/night asymmetry, defined as the difference of the average day rate and average night rate divided by the average of those two rates, to be $(-3.2\pm1.1(\text{stat})\pm0.5(\text{syst}))\%$, which deviates from zero by 2.7 $\sigma$. Since the elastic scattering process is mostly sensitive to electron-flavored solar neutrinos, a non-zero day/night asymmetry implies that the flavor oscillations of solar neutrinos are affected by the presence of matter within the neutrinos' flight path. Super-Kamiokande's day/night asymmetry is consistent with neutrino oscillations for $4\times10^{-5}$eV$^2\leq\Delta m^2_{21}\leq7\times10^{-5}$eV$^2$ and large mixing values of $\theta_{12}$, at the $68\%$ C.L., Comment: 6 pages, 4 figures
Published: 2013
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64. Calibration of the Super-Kamiokande Detector

Author: Abe, K., Hayato, Y., Iida, T., Iyogi, K., Kameda, J., Kishimoto, Y., Koshio, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Tanaka, H., Tomura, T., Ueno, K., Wendell, R. A., Yokozawa, T., Irvine, T. J., Kaji, H., Kajita, T., Kaneyuki, K., Lee, K. P., Nishimura, Y., Okumura, K., McLachlan, T., Labarga, L., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Berkman, S., Tanaka, H. A., Tobayama, S., Goldhaber, M., Bays, K., Carminati, G., Kropp, W. R., Mine, S., Renshaw, A., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Hong, N., Akiri, T., Albert, J. B., Himmel, A., Scholberg, K., Walter, C. W., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Huang, K., Ieki, K., Ikeda, M., Kikawa, T., Kubo, H., Minamino, A., Murakami, A., Nakaya, T., Otani, M., Suzuki, K., Takahashi, S., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Miyake, M., Mijakowski, P., Tacik, R., Hignight, J., Imber, J., Jung, C. K., Taylor, I., Yanagisawa, C., Idehara, Y., Ishino, H., Kibayashi, A., Mori, T., Sakuda, M., Yamaguchi, R., Yano, T., Kuno, Y., Kim, S. B., Yang, B. S., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Vagins, M. R., Martin, J. F., de Perio, P., Konaka, A., Wilking, M. J., Chen, S., Heng, Y., Sui, H., Yang, Z., Zhang, H., Zhenwei, Y., Connolly, K., Dziomba, M., and Wilkes, R. J.
Subjects: Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract: Procedures and results on hardware level detector calibration in Super-Kamiokande (SK) are presented in this paper. In particular, we report improvements made in our calibration methods for the experimental phase IV in which new readout electronics have been operating since 2008. The topics are separated into two parts. The first part describes the determination of constants needed to interpret the digitized output of our electronics so that we can obtain physical numbers such as photon counts and their arrival times for each photomultiplier tube (PMT). In this context, we developed an in-situ procedure to determine high-voltage settings for PMTs in large detectors like SK, as well as a new method for measuring PMT quantum efficiency and gain in such a detector. The second part describes the modeling of the detector in our Monte Carlo simulation, including in particular the optical properties of its water target and their variability over time. Detailed studies on the water quality are also presented. As a result of this work, we achieved a precision sufficient for physics analysis over a wide energy range (from a few MeV to above a TeV). For example, the charge determination was understood at the 1% level, and the timing resolution was 2.1 nsec at the one-photoelectron charge level and 0.5 nsec at the 100-photoelectron charge level., Comment: 75 pages, 35 figures
Published: 2013
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65. A Search for Nucleon Decay via $n \rightarrow \bar{\nu} \pi^{0}$ and $p \rightarrow \bar{\nu} \pi^{+}$ in Super-Kamiokande

Author: Collaboration, Super-Kamiokande, Abe, K., Hayato, Y., Iida, T., Iyogi, K., Kameda, J., Koshio, Y., Kozuma, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Ueshima, K., Yamada, S., Yokozawa, T., Ishihara, C., Kaji, H., Kajita, T., Kaneyuki, K., Lee, K. P., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Kearns, E., Litos, M., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhaber, M., Bays, K., Kropp, W. R., Mine, S., Regis, C., Renshaw, A., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J. B., Scholberg, K., Walter, C. W., Wendell, R., Wongjirad, T. M., Ishizuka, T., Tasaka, S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Ikeda, M., Minamino, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C. K., Lopez, G. D., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Yoshida, M., Kim, S. B., Yang, B. S., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Yokoyama, M., Totsuka, Y., Martens, K., Schuemann, J., Vagins, M. R., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: We present the results of searches for nucleon decay via bound neutron to antineutrino plus pizero and proton to antineutrino plus piplus using data from a combined 172.8 kiloton-years exposure of Super-Kamiokande-I, -II, and -III. We set lower limits on the partial lifetime for each of these modes. For antineutrino pizero, the partial lifetime is >1.1x10^{33} years; for antineutrino piplus, the partial lifetime is >3.9x10^{32} years at 90% confidence level., Comment: 6 pages, 5 figures, submitted to Physical Review Letters
Published: 2013
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66. Search for Proton Decay into Muon plus Neutral Kaon in Super-Kamiokande I, II, and III

Author: Collaboration, The Super-Kamiokande, Regis, C., Abe, K., Hayato, Y., Iyogi, K., Kameda, J., Koshio, Y., Marti, Ll., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Yokozawa, T., Kaji, H., Kajita, T., Kaneyuki, K., Lee, K. P., Okumura, K., McLachlan, T., Labarga, L., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhaber, M., Bays, K., Carminati, G., Kropp, W. R., Mine, S., Renshaw, A., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J. B., Scholberg, K., Walter, C. W., Wendell, R. A., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J. G., Matsuno, S., Smith, S. N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Ieki, K., Ikeda, M., Kubo, H., Minamino, A., Murakami, A., Nakaya, T., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Miyake, M., Mijakowski, P., Hignight, J., Imber, J., Jung, C. K., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Mori, T., Sakuda, M., Takeuchi, J., Kuno, Y., Kim, S. B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Vagins, M. R., Chen, S., Sui, H., Yang, Z., Zhang, H., Connolly, K., Dziomba, M., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: We have searched for proton into muon plus neutral kaon using data from a 91.7 kiloton-year exposure of Super-Kamiokande-I, a 49.2 kiloton-year exposure of Super-Kamiokande-II, and a 31.9 kiloton-year exposure of Super-Kamiokande-III. The number of candidate events in the data was consistent with the atmospheric neutrino background expectation and no evidence for proton decay in this mode was found. We set a partial lifetime lower limit of 1.6x10^33 years at the 90% confidence level., Comment: 15 pages, 13 figures
Published: 2012
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67. Search for Nucleon Decay into Charged Anti-lepton plus Meson in Super-Kamiokande I and II

Author: Collaboration, Super-Kamiokande, Nishino, H., Abe, K., Hayato, Y., Iida, T., Ikeda, M., Kameda, J., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Hazama, S., Higuchi, I., Ishihara, C., Kaji, H., Kajita, T., Kaneyuki, K., Mitsuka, G., Okumura, K., Tanimoto, N., Dufour, F., Kearns, E., Litos, M., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhaber, M., Bays, K., Cravens, J. P., Kropp, W. R., Mine, S., Regis, C., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J. B., Scholberg, K., Walter, C. W., Wendell, R., Ishizuka, T., Tasaka, S., Learned, J. G., Matsuno, S., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Minamino, A., Nakaya, T., Yokoyama, M., Fukuda, Y., Itow, Y., Tanaka, T., Jung, C. K., Lopez, G., McGrew, C., Yanagisawa, C., Tamura, N., Idehara, Y., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S. B., Yang, B. S., Okazawa, H., Choi, Y., Seo, H. K., Furuse, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Totsuka, Y., Vagins, M. R., Chen, S., Heng, Y., Liu, J., Yang, Z., Zhang, H., Kielczewska, D., Connolly, K., Thrane, E., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: Searches for a nucleon decay into a charged anti-lepton (e^+ or {\mu}^+) plus a light meson ({\pi}^0, {\pi}^-, {\eta}, {\rho}^0, {\rho}^-, {\omega}) were performed using the Super-Kamiokande I and II data. Twelve nucleon decay modes were searched for. The total exposure is 140.9 kiloton \cdot years, which includes a 91.7 kiloton \cdot year exposure (1489.2 live days) of Super-Kamiokande-I and a 49.2 kiloton \cdot year exposure (798.6 live days) of Super-Kamiokande-II. The number of candidate events in the data was consistent with the atmospheric neutrino background expectation. No significant evidence for a nucleon decay was observed in the data. Thus, lower limits on the nucleon partial lifetime at 90% confidence level were obtained. The limits range from 3.6 \times 10^31 to 8.2 \times 10^33 years, depending on the decay modes., Comment: 25 pages, 18 figures
Published: 2012
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68. Search for GUT Monopoles at Super-Kamiokande

Author: Collaboration, The Super-Kamiokande, Ueno, K., Abe, K., Hayato, Y., Iida, T., Iyogi, K., Kameda, J., Koshio, Y., Kozuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueshima, K., Yamada, S., Yokozawa, T., Martens, K., Schuemann, J., Vagins, M., Ishihara, C., Kaji, H., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Kearns, E., Litos, M., Raaf, J. L., Stone, J. L., Sulak, L. R., Bays, K., Kropp, W. R., Mine, S., Regis, C., Renshaw, A., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J. B., Scholberg, K., Walter, C. W., Wendell, R., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J. G., Matsuno, S., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Ikeda, M., Minamino, A., Nakaya, T., Labarga, L., Marti, Ll., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C. K., Lopez, G., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Yoshida, M., Kim, S. B., Yang, B. S., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics
Abstract: GUT monopoles captured by the Sun's gravitation are expected to catalyze proton decays via the Callan-Rubakov process. In this scenario, protons, which initially decay into pions, will ultimately produce \nu_{e}, \nu_{\mu} and \bar{\nu}_{\mu}. After undergoing neutrino oscillation, all neutrino species appear when they arrive at the Earth, and can be detected by a 50,000 metric ton water Cherenkov detector, Super-Kamiokande (SK). A search for low energy neutrinos in the electron total energy range from 19 to 55 MeV was carried out with SK and gives a monopole flux limit of F_M(\sigma_0/1 mb) < 6.3 \times 10^{-24} (\beta_M/10^{-3})^2 cm^{-2} s^{-1} sr^{-1} at 90% C.L., where \beta_M is the monopole velocity in units of the speed of light and \sigma_0 is the catalysis cross section at \beta_M=1. The obtained limit is more than eight orders of magnitude more stringent than the current best cosmic-ray supermassive monopole flux limit, F_M < 1 \times 10^{-15} cm^{-2} s^{-1} sr^{-1} for \beta_M < 10^{-3} and also two orders of magnitude lower than the result of the Kamiokande experiment, which used a similar detection method., Comment: 15 pages, 6 figures
Published: 2012
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69. Supernova Relic Neutrino Search at Super-Kamiokande

Author: Collaboration, The Super-Kamiokande, Bays, K., Iida, T., Abe, K., Hayato, Y., Iyogi, K., Kameda, J., Koshio, Y., Marti, L., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Kajita, K. Ueshima S. Yamada T. Yokozawa H. Kaji T., Kaneyuki, K., McLachlan, T., Okumura, K., Pik, L. K., Martens, K., Vagins, M., Labarga, L., Kearns, E., Litos, M., Raaf, J. L., Stone, J. L., Sulak, L. R., Kropp, W. R., Mine, S., Regis, C., Renshaw, A., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Cho, S., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J., Scholberg, K., Walter, C. W., Wendell, R., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J. G., Matsuno, S., Smith, S., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Ikeda, M., Matsuoka, K., Minamino, A., Murakami, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Miyake, M., Tanaka, T., Hignight, J., Imber, J., Jung, C. K., Taylor, I., Yanagisawa, C., Kibayashi, A., Ishino, H., Mino, S., Sakuda, M., Mori, T., Toyota, H., Kuno, Y., Kim, S. B., Yang, B. S., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Heng, Y., Chen, S., Zhang, H., Yang, Z., Mijakowski, P., Connolly, K., Dziomba, M., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: A new Super-Kamiokande (SK) search for Supernova Relic Neutrinos (SRNs) was conducted using 2853 live days of data. Sensitivity is now greatly improved compared to the 2003 SK result, which placed a flux limit near many theoretical predictions. This more detailed analysis includes a variety of improvements such as increased efficiency, a lower energy threshold, and an expanded data set. New combined upper limits on SRN flux are between 2.8 and 3.0 nu_e cm^-2 s^-1 > 16 MeV total positron energy (17.3 MeV E_nu).
Published: 2011
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70. Search for n-nbar oscillation in Super-Kamiokande

Author: collaboration, Super-Kamiokande, Abe, K., Hayato, Y., Iida, T., Ishihara, K., Kameda, J., Koshio, Y., Minamino, A., Mitsuda, C., Miura, M., Moriyama, S., Nakahata, M., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takeuchi, Y., Ueshima, K., Watanabe, H., Higuchi, I., Ishihara, C., Ishitsuka, M., Kajita, T., Kaneyuki, K., Mitsuka, G., Nakayama, S., Nishino, H., Okumura, K., Saji, C., Takenaga, Y., Clark, S., Desai, S., Dufour, F., Herfurth, A., Kearns, E., Likhoded, S., Litos, M., Raaf, J. L., Stone, J. L., Sulak, L. R., Wang, W., Goldhaber, M., Casper, D., Cravens, J. P., Dunmore, J., Griskevich, J., Kropp, W. R., Liu, D. W., Mine, S., Regis, C., Smy, M. B., Sobel, H. W., Vagins, M. R., Ganezer, K. S., Hartfiel, B., Hill, J., Keig, W. E., Jang, J. S., Jeoung, I. S., Kim, J. Y., Lim, I. T., Scholberg, K., Tanimoto, N., Walter, C. W., Wendell, R., Ellsworth, R. W., Tasaka, S., Guillian, G., Learned, J. G., Matsuno, S., Messier, M. D., Ichikawa, A. K., Ishida, T., Ishii, T., Iwashita, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nitta, K., Oyama, Y., Suzuki, A. T., Hasegawa, M., Maesaka, H., Nakaya, T., Sasaki, T., Sato, H., Tanaka, H., Yamamoto, S., Yokoyama, M., Haines, T. J., Dazeley, S., Hatakeyama, S., Svoboda, R., Sullivan, G. W., Gran, R., Habig, A., Fukuda, Y., Itow, Y., Koike, T., Jung, C. K., Kato, T., Kobayashi, K., McGrew, C., Sarrat, A., Terri, R., Yanagisawa, C., Tamura, N., Ikeda, M., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S. B., Yang, B. S., Ishizuka, T., Okazawa, H., Choi, Y., Seo, H. K., Gando, Y., Hasegawa, T., Inoue, K., Ishii, H., Nishijima, K., Ishino, H., Watanabe, Y., Koshiba, M., Totsuka, Y., Chen, S., Deng, Z., Liu, Y., Kielczewska, D., Berns, H. G., Shiraishi, K. K., Thrane, E., Washburn, K., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: A search for neutron-antineutron ($n-\bar{n}$) oscillation was undertaken in Super-Kamiokande using the 1489 live-day or $2.45 \times 10^{34}$ neutron-year exposure data. This process violates both baryon and baryon minus lepton numbers by an absolute value of two units and is predicted by a large class of hypothetical models where the seesaw mechanism is incorporated to explain the observed tiny neutrino masses and the matter-antimatter asymmetry in the Universe. No evidence for $n-\bar{n}$ oscillation was found, the lower limit of the lifetime for neutrons bound in ${}^{16}$O, in an analysis that included all of the significant sources of experimental uncertainties, was determined to be $1.9 \times 10^{32}$~years at the 90\% confidence level. The corresponding lower limit for the oscillation time of free neutrons was calculated to be $2.7 \times 10^8$~s using a theoretical value of the nuclear suppression factor of $0.517 \times 10^{23}$~s$^{-1}$ and its uncertainty., Comment: 8 pages, 2 figures
Published: 2011
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71. Study of Non-Standard Neutrino Interactions with Atmospheric Neutrino Data in Super-Kamiokande I and II

Author: Mitsuka, G., Abe, K., Hayato, Y., Iida, T., Ikeda, M., Kameda, J., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Hazama, S., Higuchi, I., Ishihara, C., Kaji, H., Kajita, T., Kaneyuki, K., Nishino, H., Okumura, K., Tanimoto, N., Dufour, F., Kearns, E., Litos, M., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhaber, M., Bays, K., Cravens, J. P., Kropp, W. R., Mine, S., Regis, C., Smy, M. B., Sobel, H. W., Vagins, M. R., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J., Scholberg, K., Walter, C. W., Wendell, R., Ishizuka, T., Tasaka, S., Learned, J. G., Matsuno, S., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Minamino, A., Nakaya, T., Yokoyama, M., Fukuda, Y., Itow, Y., Tanaka, T., Jung, C. K., Lopez, G., McGrew, C., Yanagisawa, C., Tamura, N., Idehara, Y., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S. B., Yang, B. S., Okazawa, H., Choi, Y., Seo, H. K., Furuse, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Totsuka, Y., Chen, S., Liu, J., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Connolly, K., Thrane, E., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: In this paper we study non-standard neutrino interactions as an example of physics beyond the standard model using atmospheric neutrino data collected during the Super-Kamiokande I(1996-2001) and II(2003-2005) periods. We focus on flavor-changing-neutral-currents (FCNC), which allow neutrino flavor transitions via neutral current interactions, and effects which violate lepton non-universality (NU) and give rise to different neutral-current interaction-amplitudes for different neutrino flavors. We obtain a limit on the FCNC coupling parameter, varepsilon_{mu tau}, |varepsilon_{mu tau}|<1.1 x 10^{-2} at 90%C.L. and various constraints on other FCNC parameters as a function of the NU coupling, varepsilon_{e e}. We find no evidence of non-standard neutrino interactions in the Super-Kamiokande atmospheric data., Comment: 12 Pages, 14 figures. To be submitted to Phys. Rev. D
Published: 2011
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72. Search for Differences in Oscillation Parameters for Atmospheric Neutrinos and Antineutrinos at Super-Kamiokande

Author: Collaboration, Super-Kamiokande, Abe, K., Hayato, Y., Iida, T., Ikeda, M., Iyogi, K., Kameda, J., Koshio, Y., Kozuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Yokozawa, T., Ishihara, C., Kaji, H., Lee, K. P., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Martens, K., Vagins, M. R., Labarga, L., Magro, L. M., Dufour, F., Kearns, E., Litos, M., Raaf, J. L., Stone, J. L., Sulak, L. R., Goldhaber, M., Bays, K., Kropp, W. R., Mine, S., Regis, C., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J. B., Scholberg, K., Walter, C. W., Wendell, R., Wongjirad, T. M., Tasaka, S., Learned, J. G., Matsuno, S., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nishino, H., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Minamino, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C. K., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Kim, S. B., Yang, B. S., Ishizuka, T., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Yokoyama, M., Totsuka, Y., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: We present a search for differences in the oscillations of antineutrinos and neutrinos in the Super-Kamiokande -I, -II, and -III atmospheric neutrino sample. Under a two-flavor disappearance model with separate mixing parameters between neutrinos and antineutrinos, we find no evidence for a difference in oscillation parameters. Best fit antineutrino mixing is found to be at (dm2bar, sin2 2 thetabar) = (2.0x10^-3 eV^2, 1.0) and is consistent with the overall Super-K measurement., Comment: 6 pages, 4 figures. Figure updated
Published: 2011
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73. An Indirect Search for WIMPs in the Sun using 3109.6 days of upward-going muons in Super-Kamiokande

Author: Collaboration, The Super-Kamiokande, Tanaka, T., Abe, K., Hayato, Y., Iida, T., Kameda, J., Koshio, Y., Kouzuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Ueshima, K., Yamada, S., Yokozawa, T., Ishihara, C., Hazama, S., Kaji, H., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Dufour, F., Kearns, E., Litos3, M., Raaf, J. L., Stone, J. L., Sulak, L. R., Cravens, J. P., Bays, K., Kropp, W. R., Mine, S., Regis, C., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J. B., Scholberg, K., Walter, C. W., Wendell, R., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J. G., Matsuno, S., Smith, S., Martens, K., Vagins, M., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nishino, H., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Ikeda, M., Minamino, A., Nakaya, T., Labarga, L., Fukuda, Y., Itow, Y., Mitsuka, G., Jung, C. K., McGrew, C., Lopez, G., Yanagisawa, C., Tamura, N., Ishino, H., Kibayashi, A., Sakuda, M., Kuno, Y., Yoshida, M., Kim, S. B., Yang, B. S., Okazawa, H., Choi, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Totsuka, Y., Yokoyama, M., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., and Wilkes, R. J.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: We present the result of an indirect search for high energy neutrinos from WIMP annihilation in the Sun using upward-going muon (upmu) events at Super-Kamiokande. Datasets from SKI-SKIII (3109.6 days) were used for the analysis. We looked for an excess of neutrino signal from the Sun as compared with the expected atmospheric neutrino background in three upmu categories: stopping, non-showering, and showering. No significant excess was observed. The 90% C.L. upper limits of upward-going muon flux induced by WIMPs of 100 GeV/c$^2$ were 6.4$\times10^{-15}$ cm$^{-2}$ sec$^{-1}$ and 4.0$\times10^{-15}$ cm$^{-2}$ sec$^{-1}$ for the soft and hard annihilation channels, respectively. These limits correspond to upper limits of 4.5$\times10^{-39}$ cm$^{-2}$ and 2.7$\times10^{-40}$ cm$^{-2}$ for spin-dependent WIMP-nucleon scattering cross sections in the soft and hard annihilation channels, respectively., Comment: Add journal reference. Also fixed typo and cosmetic things in the old draft
Published: 2011
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74. Solar neutrino results in Super-Kamiokande-III

Author: Abe, K., Hayato, Y., Iida, T., Ikeda, M., Ishihara, C., Iyogi, K., Kameda, J., Kobayashi, K., Koshio, Y., Kozuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Yokozawa, T., Hazama, S., Kaji, H., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Vagins, M. R., Labarga, L., Magro, L. M, Dufour, F., Kearns, E., Litos, M., Raaf, J. L., Stone, J. L., Sulak, L. R., Wang, W., Goldhaber, M., Bays, K., Casper, D., Cravens, J. P., Kropp, W. R., Mine, S., Regis, C., Renshaw, A., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J., Wendell, R., Wongjirad, T., Scholberg, K., Walter, C. W., Ishizuka, T., Tasaka, S., Learned, J. G., Matsuno, S., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nishino, H., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Takeuchi, Y., Minamino, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C. K., Lopez, G., McGrew, C., Terri, R., Yanagisawa, C., Tamura, N., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Yoshida, M., Kim, S. B., Yang, B. S., Okazawa, H., Choi, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Totsuka, Y., Yokoyama, M., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: The results of the third phase of the Super-Kamiokande solar neutrino measurement are presented and compared to the first and second phase results. With improved detector calibrations, a full detector simulation, and improved analysis methods, the systematic uncertainty on the total neutrino flux is estimated to be ?2.1%, which is about two thirds of the systematic uncertainty for the first phase of Super-Kamiokande. The observed 8B solar flux in the 5.0 to 20 MeV total electron energy region is 2.32+/-0.04 (stat.)+/-0.05 (sys.) *10^6 cm^-2sec^-1, in agreement with previous measurements. A combined oscillation analysis is carried out using SK-I, II, and III data, and the results are also combined with the results of other solar neutrino experiments. The best-fit oscillation parameters are obtained to be sin^2 {\theta}12 = 0.30+0.02-0.01(tan^2 {\theta}12 = 0.42+0.04 -0.02) and {\Delta}m2_21 = 6.2+1.1-1.9 *10^-5eV^2. Combined with KamLAND results, the best-fit oscillation parameters are found to be sin^2 {\theta}12 = 0.31+/-0.01(tan^2 {\theta}12 = 0.44+/-0.03) and {\Delta}m2_21 = 7.6?0.2*10^-5eV^2 . The 8B neutrino flux obtained from global solar neutrino experiments is 5.3+/-0.2(stat.+sys.)*10^6cm^-2s^-1, while the 8B flux becomes 5.1+/-0.1(stat.+sys.)*10^6cm^-2s^-1 by adding KamLAND result. In a three-flavor analysis combining all solar neutrino experiments, the upper limit of sin^2 {\theta}13 is 0.060 at 95% C.L.. After combination with KamLAND results, the upper limit of sin^2 {\theta}13 is found to be 0.059 at 95% C.L.., Comment: 19 pages, 33 figures in the main text. The appendix section on errata is added in v3
Published: 2010
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75. Atmospheric neutrino oscillation analysis with sub-leading effects in Super-Kamiokande I, II, and III

Author: Collaboration, Super-Kamiokande, Wendell, R., Ishihara, C., Abe, K., Hayato, Y., Iida, T., Ikeda, M., Iyogi, K., Kameda, J., Kobayashi, K., Koshio, Y., Kozuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Takeuchi, Y., Ueno, K., Ueshima, K., Watanabe, H., Yamada, S., Yokozawa, T., Hazama, S., Kaji, H., Kajita, T., Kaneyuki, K., McLachlan, T., Okumura, K., Shimizu, Y., Tanimoto, N., Vagins, M. R., Dufour, F., Kearns, E., Litos, M., Raaf, J. L., Stone, J. L., Sulak, L. R., Wang, W., Goldhaber, M., Bays, K., Casper, D., Cravens, J. P., Kropp, W. R., Mine, S., Regis, C., Smy, M. B., Sobel, H. W., Ganezer, K. S., Hill, J., Keig, W. E., Jang, J. S., Kim, J. Y., Lim, I. T., Albert, J., Fechner, M., Scholberg, K., Walter, C. W., Tasaka, S., Learned, J. G., Matsuno, S., Watanabe, Y., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Nishino, H., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A. T., Minamino, A., Nakaya, T., Fukuda, Y., Itow, Y., Mitsuka, G., Tanaka, T., Jung, C. K., Lopez, G., McGrew, C., Yanagisawa, C., Tamura, N., Ishino, H., Kibayashi, A., Mino, S., Mori, T., Sakuda, M., Toyota, H., Kuno, Y., Yoshida, M., Kim, S. B., Yang, B. S., Ishizuka, T., Okazawa, H., Choi, Y., Nishijima, K., Yokosawa, Y., Koshiba, M., Yokoyama, M., Totsuka, Y., Chen, S., Heng, Y., Yang, Z., Zhang, H., Kielczewska, D., Mijakowski, P., Connolly, K., Dziomba, M., Thrane, E., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment
Abstract: We present a search for non-zero theta_{13} and deviations of sin^2 theta_{23} from 0.5 in the oscillations of atmospheric neutrino data from Super-Kamiokande -I, -II, and -III. No distortions of the neutrino flux consistent with non-zero theta_{13} are found and both neutrino mass hierarchy hypotheses are in agreement with the data. The data are best fit at Delta m^2 = 2.1 x 10^-3 eV^2, sin^2 theta_{13} = 0.0, and sin^2 theta_{23} =0.5. In the normal (inverted) hierarchy theta_{13} and Delta m^2 are constrained at the one-dimensional 90% C.L. to sin^2 theta_{13} < 0.04 (0.09) and 1.9 (1.7) x 10^-3 < Delta m^2 < 2.6 (2.7) x 10^-3 eV^2. The atmospheric mixing angle is within 0.407 <= sin^2 theta_{23} <= 0.583 at 90% C.L., Comment: 17 Pages, 14 figures. To be submitted to Phys. Rev. D Minor update to text after referee comments. Figures modified for better grayscale printing.
Published: 2010
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76. Search for Dark Matter WIMPs using Upward Through-going Muons in Super-Kamiokande

Author: Collaboration, Super-Kamiokande, Desai, S., Ashie, Y., Fukuda, S., Fukuda, Y., Ishihara, K., Itow, Y., Koshio, Y., Minamino, A., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Nambu, R., Obayashi, Y., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Yamada, S., Ishitsuka, M., Kajita, T., Kaneyuki, K., Nakayama, S., Okada, A., Ooyabu, T., Saji, C., Earl, M., Kearns, E., Stone, J. L., Sulak, L. R., Walter, C. W., Wang, W., Goldhaber, M., Barszczak, T., Casper, D., Cravens, J. P., Gajewski, W., Kropp, W. R., Mine, S., Liu, D. W., Smy, M. B., Sobel, H. W., Sterner, C. W., Vagins, M. R., Ganezer, K. S., Hill, J., Keig, W. E., Kim, J. Y., Lim, I. T., Ellsworth, R. W., Tasaka, S., Guillian, G., Kibayashi, A., Learned, J. G., Matsuno, S., Takemori, D., Messier, M. D., Hayato, Y., Ichikawa, A. K., Ishida, T., Ishii, T., Iwashita, T., Kameda, J., Kobayashi, T., Maruyama, T., Nakamura, K., Nitta, K., Oyama, Y., Sakuda, M., Totsuka, Y., Suzuki, A. T., Hasegawa, M., Hayashi, K., Inagaki, T., Kato, I., Maesaka, H., Morita, T., Nakaya, T., Nishikawa, K., Sasaki, T., Ueda, S., Yamamoto, S., Haines, T. J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J. A., Sullivan, G. W., Turcan, D., Scholberg, K., Habig, A., Jung, C. K., Kato, T., Kobayashi, K., Malek, M., Mauger, C., McGrew, C., Sarrat, A., Sharkey, E., Yanagisawa, C., Toshito, T., Mitsuda, C., Miyano, K., Shibata, T., Kajiyama, Y., Nagashima, Y., Takita, M., Yoshida, M., Kim, H. I., Okazawa, H., Ishizuka, T., Choi, Y., Seo, H. K., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Koshiba, M., Hashimoto, T., Nakajima, Y., Nishijima, K., Harada, T., Ishino, H., Morii, M., Nishimura, R., Watanabe, Y., Kielczewska, D., Zalipska, J., Gran, R., Shiraishi, K. K., Washburn, K., and Wilkes, R. J.
Subjects: High Energy Physics - Experiment, Astrophysics
Abstract: We present the results of indirect searches for Weakly Interacting Massive Particles (WIMPs) with 1679.6 live days of data from the Super-Kamiokande detector using neutrino-induced upward through-going muons. The search is performed by looking for an excess of high energy muon neutrinos from WIMP annihilations in the Sun, the core of the Earth, and the Galactic Center, as compared to the number expected from the atmospheric neutrino background. No statistically significant excess was seen. We calculate flux limits in various angular cones around each of the above celestial objects. We obtain conservative model-independent upper limits on WIMP-nucleon cross-section as a function of WIMP mass and compare these results with the corresponding results from direct dark matter detection experiments., Comment: 10 pages, 14 figures, Submitted to Phys. Rev. D
Published: 2004
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77. Search for Astrophysical Electron Antineutrinos in Super-Kamiokande with 0.01% Gadolinium-loaded Water

Author: Harada, M., primary, Abe, K., additional, Bronner, C., additional, Hayato, Y., additional, Hiraide, K., additional, Hosokawa, K., additional, Ieki, K., additional, Ikeda, M., additional, Kameda, J., additional, Kanemura, Y., additional, Kaneshima, R., additional, Kashiwagi, Y., additional, Kataoka, Y., additional, Miki, S., additional, Mine, S., additional, Miura, M., additional, Moriyama, S., additional, Nakano, Y., additional, Nakahata, M., additional, Nakayama, S., additional, Noguchi, Y., additional, Okamoto, K., additional, Sato, K., additional, Sekiya, H., additional, Shiba, H., additional, Shimizu, K., additional, Shiozawa, M., additional, Sonoda, Y., additional, Suzuki, Y., additional, Takeda, A., additional, Takemoto, Y., additional, Takenaka, A., additional, Tanaka, H., additional, Watanabe, S., additional, Yano, T., additional, Han, S., additional, Kajita, T., additional, Okumura, K., additional, Tashiro, T., additional, Tomiya, T., additional, Wang, X., additional, Yoshida, S., additional, Megias, G. D., additional, Fernandez, P., additional, Labarga, L., additional, Ospina, N., additional, Zaldivar, B., additional, Pointon, B. W., additional, Kearns, E., additional, Raaf, J. L., additional, Wan, L., additional, Wester, T., additional, Bian, J., additional, Griskevich, N. J., additional, Locke, S., additional, Smy, M. B., additional, Sobel, H. W., additional, Takhistov, V., additional, Yankelevich, A., additional, Hill, J., additional, Lee, S. H., additional, Moon, D. H., additional, Park, R. G., additional, Bodur, B., additional, Scholberg, K., additional, Walter, C. W., additional, Beauchêne, A., additional, Drapier, O., additional, Giampaolo, A., additional, Mueller, Th. A., additional, Santos, A. D., additional, Paganini, P., additional, Quilain, B., additional, Ishizuka, T., additional, Nakamura, T., additional, Jang, J. S., additional, Learned, J. G., additional, Choi, K., additional, Iovine, N., additional, Cao, S., additional, Anthony, L. H. V., additional, Martin, D., additional, Scott, M., additional, Sztuc, A. A., additional, Uchida, Y., additional, Berardi, V., additional, Catanesi, M. G., additional, Radicioni, E., additional, Calabria, N. F., additional, Langella, A., additional, Machado, L. N., additional, De Rosa, G., additional, Collazuol, G., additional, Iacob, F., additional, Lamoureux, M., additional, Mattiazzi, M., additional, Ludovici, L., additional, Gonin, M., additional, Pronost, G., additional, Fujisawa, C., additional, Maekawa, Y., additional, Nishimura, Y., additional, Okazaki, R., additional, Akutsu, R., additional, Friend, M., additional, Hasegawa, T., additional, Ishida, T., additional, Kobayashi, T., additional, Jakkapu, M., additional, Matsubara, T., additional, Nakadaira, T., additional, Nakamura, K., additional, Oyama, Y., additional, Sakashita, K., additional, Sekiguchi, T., additional, Tsukamoto, T., additional, Bhuiyan, N., additional, Burton, G. T., additional, Di Lodovico, F., additional, Gao, J., additional, Goldsack, A., additional, Katori, T., additional, Migenda, J., additional, Xie, Z., additional, Zsoldos, S., additional, Kotsar, Y., additional, Ozaki, H., additional, Suzuki, A. T., additional, Takagi, Y., additional, Takeuchi, Y., additional, Feng, J., additional, Feng, L., additional, Hu, J. R., additional, Hu, Z., additional, Kikawa, T., additional, Mori, M., additional, Nakaya, T., additional, Wendell, R. A., additional, Yasutome, K., additional, Jenkins, S. J., additional, McCauley, N., additional, Mehta, P., additional, Tarrant, A., additional, Fukuda, Y., additional, Itow, Y., additional, Menjo, H., additional, Ninomiya, K., additional, Lagoda, J., additional, Lakshmi, S. M., additional, Mandal, M., additional, Mijakowski, P., additional, Prabhu, Y. S., additional, Zalipska, J., additional, Jia, M., additional, Jiang, J., additional, Jung, C. K., additional, Wilking, M. J., additional, Yanagisawa, C., additional, Hino, Y., additional, Ishino, H., additional, Kitagawa, H., additional, Koshio, Y., additional, Nakanishi, F., additional, Sakai, S., additional, Tada, T., additional, Tano, T., additional, Barr, G., additional, Barrow, D., additional, Cook, L., additional, Samani, S., additional, Wark, D., additional, Holin, A., additional, Nova, F., additional, Yang, B. S., additional, Yang, J. Y., additional, Yoo, J., additional, Fannon, J. E. P., additional, Kneale, L., additional, Malek, M., additional, McElwee, J. M., additional, Thiesse, M. D., additional, Thompson, L. F., additional, Wilson, S. T., additional, Okazawa, H., additional, Kim, S. B., additional, Kwon, E., additional, Seo, J. W., additional, Yu, I., additional, Ichikawa, A. K., additional, Nakamura, K. D., additional, Tairafune, S., additional, Nishijima, K., additional, Nakagiri, K., additional, Nakajima, Y., additional, Shima, S., additional, Taniuchi, N., additional, Watanabe, E., additional, Yokoyama, M., additional, de Perio, P., additional, Martens, K., additional, Tsui, K. M., additional, Vagins, M. R., additional, Xia, J., additional, Kuze, M., additional, Izumiyama, S., additional, Matsumoto, R., additional, Ishitsuka, M., additional, Ito, H., additional, Kinoshita, T., additional, Ommura, Y., additional, Shigeta, N., additional, Shinoki, M., additional, Suganuma, T., additional, Yamauchi, K., additional, Martin, J. F., additional, Tanaka, H. A., additional, Towstego, T., additional, Gaur, R., additional, Gousy-Leblanc, V., additional, Hartz, M., additional, Konaka, A., additional, Li, X., additional, Prouse, N. W., additional, Chen, S., additional, Xu, B. D., additional, Zhang, B., additional, Posiadala-Zezula, M., additional, Boyd, S. B., additional, Edwards, R., additional, Hadley, D., additional, Nicholson, M., additional, O’Flaherty, M., additional, Richards, B., additional, Ali, A., additional, Jamieson, B., additional, Marti, Ll., additional, Minamino, A., additional, Pintaudi, G., additional, Sano, S., additional, Suzuki, S., additional, and Wada, K., additional
Published: 2023
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78. Search for proton decay via <math><mi>p</mi><mo>→</mo><msup><mi>μ</mi><mo>+</mo></msup><msup><mi>K</mi><mn>0</mn></msup></math> in 0.37 megaton-years exposure of Super-Kamiokande

Author: Matsumoto, R., Abe, K., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Okamoto, K., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Xia, J., Yoshida, S., Megias, G. D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Mueller, Th. A., Santos, A. D., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Choi, K., Cao, S., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, Nicola, Nascimento Machado, L., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Boschi, T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Taani, M., Xie, Z., Zsoldos, S., Kotsar, Y., Ozaki, H., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Bronner, C., Feng, J., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., McCauley, N., Mehta, P., Tsui, K. M., Tarrant, A., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Lagoda, J., Lakshmi, S. M., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jia, M., Jiang, J., Jung, C. K., Wilking, M. J., Yanagisawa, C., Harada, M., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Ma, W., Nakanishi, F., Sakai, S., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Holin, A., Nova, F., Yang, J. Y., Malek, M., McElwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Kwon, E., Seo, J. W., Yu, I., Ichikawa, A. K., Nakamura, K. D., Tairafune, S., Nishijima, K., Koshiba, M., Iwamoto, K., Nakagiri, K., Nakajima, Y., Shima, S., Taniuchi, N., Yokoyama, M., Martens, K., de Perio, P., Vagins, M. R., Kuze, M., Izumiyama, S., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Ommura, Y., Shigeta, N., Shinoki, M., Suganuma, T., Yamauchi, K., Martin, J. F., Tanaka, H. A., Towstego, T., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Li, X., Prouse, N. W., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Boyd, S. B., Hadley, D., Nicholson, M., O’Flaherty, M., Richards, B., Ali, A., Jamieson, B., Marti, Ll., Minamino, A., Pintaudi, G., Sano, S., Suzuki, S., Wada, K., Matsumoto, R., Abe, K., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Okamoto, K., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Xia, J., Yoshida, S., Megias, G. D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Mueller, Th. A., Santos, A. D., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Choi, K., Cao, S., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, Nicola, Nascimento Machado, L., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Boschi, T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Taani, M., Xie, Z., Zsoldos, S., Kotsar, Y., Ozaki, H., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Bronner, C., Feng, J., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., Mccauley, N., Mehta, P., Tsui, K. M., Tarrant, A., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Lagoda, J., Lakshmi, S. M., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jia, M., Jiang, J., Jung, C. K., Wilking, M. J., Yanagisawa, C., Harada, M., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Ma, W., Nakanishi, F., Sakai, S., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Holin, A., Nova, F., Yang, J. Y., Malek, M., Mcelwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Kwon, E., Seo, J. W., Yu, I., Ichikawa, A. K., Nakamura, K. D., Tairafune, S., Nishijima, K., Koshiba, M., Iwamoto, K., Nakagiri, K., Nakajima, Y., Shima, S., Taniuchi, N., Yokoyama, M., Martens, K., de Perio, P., Vagins, M. R., Kuze, M., Izumiyama, S., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Ommura, Y., Shigeta, N., Shinoki, M., Suganuma, T., Yamauchi, K., Martin, J. F., Tanaka, H. A., Towstego, T., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Li, X., Prouse, N. W., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Boyd, S. B., Hadley, D., Nicholson, M., O’Flaherty, M., Richards, B., Ali, A., Jamieson, B., Marti, Ll., Minamino, A., Pintaudi, G., Sano, S., Suzuki, S., and Wada, K.
Abstract: We searched for proton decay via p→μ+K0 in 0.37 Mton·years of data collected between 1996 and 2018 from the Super-Kamiokande water Cherenkov experiment. The selection criteria were defined separately for KS0 and KL0 channels. No significant event excess has been observed. As a result of this analysis, which extends the previous search by an additional 0.2 Mton·years of exposure and uses an improved event reconstruction, we set a lower limit of 3.6×1033 years on the proton lifetime.
Published: 2022

79. AB0545 EFFECT OF BELIMUMAB ON CLINICAL PROFILES AND DAILY LIVING SCORE IN PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS (SLE)

Author: Ishizuka, T., primary, Fujioka, K., additional, Tangiku, M., additional, Tani, H., additional, Maeda, A., additional, and Kato, A., additional
Published: 2023
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80. Identifying Problems in the Morphological Evaluation of Bronchoalveolar Lavage

Author: Waseda, Y., primary, Takeuchi, A., additional, Hosokawa, Y., additional, Kimura, S., additional, Yamaoka, K., additional, Mitsui, M., additional, Shimada, A., additional, Yamaguchi, M., additional, Sonoda, T., additional, Honjo, C., additional, Kadowaki, M., additional, Umeda, Y., additional, Anzai, M., additional, Watanabe, S., additional, Miyamoto, A., additional, Oka, T., additional, Ishii, H., additional, Isobe, T., additional, and Ishizuka, T., additional
Published: 2023
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81. Finite-difference time-domain analysis of the vibration characteristics of a beam-plate structure using a dimension-reduced model

Author: Asakura, T., Ishizuka, T., Miyajima, T., and Toyoda, M.
Published: 2015
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82. Local application of Aqua Titan improves symptoms of temporomandibular joint muscle disorder: a preliminary study

Author: Matsumoto, K., Tsukimura, N., Ishizuka, T., Kohinata, K., Yonehara, Y., and Honda, K.
Published: 2015
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83. Measurement of the cosmogenic neutron yield in Super-Kamiokande with gadolinium loaded water

Author: Shinoki, M., Abe, K., Hayato, Y., Hiraide, K., Hosokawa, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Okamoto, K., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Yoshida, S., Megias, G. D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Hill, J., Lee, S. H., Moon, D. H., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Beauchêne, A., Bernard, L., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Mueller, Th A., Santos, A. D., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Choi, K., Cao, S., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Langella, A., Machado, L. N., Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Akutsu, R., Friend, M., Takuya Hasegawa, Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Bhuiyan, N., Boschi, T., Burton, G. T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Taani, M., Xie, Z., Zsoldos, S., Kotsar, Y., Ozaki, H., Suzuki, A. T., Takeuchi, Y., Bronner, C., Feng, J., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., Mccauley, N., Mehta, P., Tarrant, A., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Lagoda, J., Lakshmi, S. M., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jia, M., Jiang, J., Jung, C. K., Wilking, M. J., Yanagisawa, C., Harada, M., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Nakanishi, F., Sakai, S., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Holin, A., Nova, F., Yang, J. Y., Yang, B. S., Yoo, J., Fannon, J. E. P., Kneale, L., Kneal, K., Malek, M., Mcelwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Kwon, E., Seo, J. W., Yu, I., Ichikawa, A. K., Nakamura, K. D., Tairafune, S., Nishijima, K., Koshiba, M., Iwamoto, K., Nakagiri, K., Nakajima, Y., Shima, S., Taniuchi, N., Yokoyama, M., Martens, K., Perio, P., Vagins, M. R., Xia, J., Kuze, M., Izumiyama, S., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Matsumoto, R., Ommura, Y., Shigeta, N., Suganuma, T., Yamauchi, K., Martin, J. F., Tanaka, H. A., Towstego, T., Gaur, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Li, X., Prouse, N. W., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Boyd, S. B., Hadley, D., Nicholson, M., O Flaherty, M., Richards, B., Ali, A., Jamieson, B., Marti, Ll, Minamino, A., Pintaudi, G., Sano, S., Suzuki, S., Wada, K., and HEP, INSPIRE
Subjects: muon: energy, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], background, water, FOS: Physical sciences, showers: hadronic, KAMIOKANDE, n: yield: measured, High Energy Physics - Experiment, n: neutrinoproduction, High Energy Physics - Experiment (hep-ex), efficiency, radioactivity, muon: cosmic radiation, fission, gadolinium, experimental results
Abstract: Cosmic-ray muons that enter the Super-Kamiokande detector cause hadronic showers due to spallation in water, producing neutrons and radioactive isotopes. Those are a major background source for studies of MeV-scale neutrinos and searches for rare events. Since 2020, gadolinium was introduced in the ultra-pure water in the Super-Kamiokande detector to improve the detection efficiency of neutrons. In this study, the cosmogenic neutron yield was measured using data acquired during the period after the gadolinium loading. The yield was found to be $(2.76 \pm 0.02\,\mathrm{(stat.) \pm 0.19\,\mathrm{(syst.)}}) \times 10^{-4}\,\mu^{-1} \mathrm{g^{-1} cm^{2}}$ at 259 GeV of average muon energy at the Super-Kamiokande detector., Comment: 10 pages, 10 figures, 3 tables
Published: 2023

84. Supernova Relic Neutrino search with neutron tagging at Super-Kamiokande-IV

Author: Zhang, H., Abe, K., Hayato, Y., Iyogi, K., Kameda, J., Kishimoto, Y., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Sekiya, H., Shiozawa, M., Suzuki, Y., Takeda, A., Takenaga, Y., Tomura, T., Ueno, K., Yokozawa, T., Wendell, R.A., Kaji, H., Kajita, T., Kaneyuki, K., Lee, K.P., Nishimura, Y., Okumura, K., McLachlan, T., Labarga, L., Barkman, S., Tanaka, T.S., Tobayama, S., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Goldhaber, M., Bays, K., Carminati, G., Kropp, W.R., Mine, S., Renshaw, A., Smy, M.B., Sobel, H.W., Ganezer, K.S., Hill, J., Keig, W.E., Jang, J.S., Kim, J.Y., Lim, I.T., Akiri, T., Scholberg, K., Walter, C.W., Wongjirad, T., Ishizuka, T., Tasaka, S., Learned, J.G., Matsuno, S., Smith, S.N., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Nishikawa, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Suzuki, A.T., Takeuchi, Y., Ieki, K., Ikeda, M., Kikawa, H., Huang, K., Minamino, A., Murakami, A., Nakaya, T., Suzuki, K., Takahashi, S., Fukuda, Y., Choi, K., Itow, Y., Mitsuka, G., Mijakowski, P., Hignight, J., Imber, J., Jung, C.K., Taylor, I., Yanagisawa, C., Ishino, H., Kibayashi, A., Koshio, Y., Mori, T., Sakuda, M., Yamaguchi, R., Yano, T., Kuno, Y., Tacik, R., Kim, S.B., Okazawa, H., Choi, Y., Nishijima, K., Koshiba, M., Totsuka, Y., Yokoyama, M., Martens, K., Marti, Ll., Vagins, M.R., Martin, J.F., dePerio, P., Konaka, A., Wilking, M.J., Chen, S., Sui, H., Yang, Z., Zhang, Y., Connolly, K., Dziomba, M., and Wilkes, R.J.
Published: 2015
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85. MEASUREMENT OF PHASE DISTRIBUTION PHENOMENA IN HIGH PRESSURE STEAM-WATER TWO PHASE FLOW

Author: Narabayashi, T., primary, Morooka, Shinichi, additional, Kagawa, T., additional, Ishizuka, T., additional, Hoshide, A., additional, and Ishiyama, T., additional
Published: 2023
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86. Pre-supernova alert system for super-kamiokande

Author: Kamiokande Collaboration, Machado, L. N., Abe, K., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Okamoto, K., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., de Perio, P., Martens, K., Vagins, M. R., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Xia, J., Yoshida, S., Megias, G. D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Prouse, N. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., Hedri, S. El, Giampaolo, A., Mueller, Th. A., Santos, A. D., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Cao, S., Choi, K., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Sasaki, R., Friend, M., Hasegawa, T., Ishida, T., Jakkapu, M., Kobayashi, T., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Boschi, T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Taani, M., Zsoldos, S., Kotsar, Y., Ozaki, H., Suzuki, A. T., Takeuchi, Y., Yaamoto, S., Bronner, C., Feng, J., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., McCauley, N., Mehta, P., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Lagoda, J., Lakshmi, S. M., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jia, M., Jiang, J., Jung, C. K., Wilking, M. J., Yanagisawa, C., Harada, M., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Ma, W., Nakanishi, F., Sakai, S., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Nova, F., Yang, J. Y., Malek, M., McElwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Seo, J. W., Yu, I., Ichikawa, A. K., Nakamura, K. D., Tairafune, S., Nishijima, K., Iwamoto, K., Nakagiri, K., Nakajima, Y., Taniuchi, N., Yokoyama, M., Izumiyama, S., Kuze, M., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Matsumoto, R., Ommura, Y., Shigeta, N., Shinoki, M., Suganuma, T., Yonenaga, M., Martin, J. F., Tanaka, H. A., Towstego, T., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Hadley, D., Nicholson, M., O'Flaherty, M., Richards, B., Ali, A., Jamieson, B., Marti, Ll., Minamino, A., Pintaudi, G., Sano, S., Suzuki, S., Wada, K., Nascimento Machado, L., Abe, K., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Okamoto, K., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., de Perio, P., Martens, K., Vagins, M. R., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Xia, J., Yoshida, S., Megias, G. D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Prouse, N. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Mueller, Th. A., Santos, A. D., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Cao, S., Choi, K., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Sasaki, R., Friend, M., Hasegawa, T., Ishida, T., Jakkapu, M., Kobayashi, T., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Boschi, T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Taani, M., Zsoldos, S., Kotsar, Y., Ozaki, H., Suzuki, A. T., Takeuchi, Y., Yaamoto, S., Bronner, C., Feng, J., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., Mccauley, N., Mehta, P., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Lagoda, J., Lakshmi, S. M., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jia, M., Jiang, J., Jung, C. K., Wilking, M. J., Yanagisawa, C., Harada, M., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Ma, W., Nakanishi, F., Sakai, S., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Nova, F., Yang, J. Y., Malek, M., Mcelwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Seo, J. W., Yu, I., Ichikawa, A. K., Nakamura, K. D., Tairafune, S., Nishijima, K., Iwamoto, K., Nakagiri, K., Nakajima, Y., Taniuchi, N., Yokoyama, M., Izumiyama, S., Kuze, M., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Matsumoto, R., Ommura, Y., Shigeta, N., Shinoki, M., Suganuma, T., Yonenaga, M., Martin, J. F., Tanaka, H. A., Towstego, T., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Hadley, D., Nicholson, M., O???flaherty, M., Richards, B., Ali, A., Jamieson, B., Marti, Ll., Minamino, A., Pintaudi, G., Sano, S., Suzuki, S., and Wada, K.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), High Energy Physics - Experiment (hep-ex), Neutrino astronomy Supernova neutrinos Particle astrophysics Particle physics Silicon burning Core-collapse supernovae, Physics - Instrumentation and Detectors, Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: In 2020, the Super-Kamiokande (SK) experiment moved to a new stage (SK-Gd) in which gadolinium (Gd) sulfate octahydrate was added to the water in the detector, enhancing the efficiency to detect thermal neutrons and consequently improving the sensitivity to low energy electron anti-neutrinos from inverse beta decay (IBD) interactions. SK-Gd has the potential to provide early alerts of incipient core-collapse supernovae through detection of electron anti-neutrinos from thermal and nuclear processes responsible for the cooling of massive stars before the gravitational collapse of their cores. These pre-supernova neutrinos emitted during the silicon burning phase can exceed the energy threshold for IBD reactions. We present the sensitivity of SK-Gd to pre-supernova stars and the techniques used for the development of a pre-supernova alarm based on the detection of these neutrinos in SK, as well as prospects for future SK-Gd phases with higher concentrations of Gd. For the current SK-Gd phase, high-confidence alerts for Betelgeuse could be issued up to nine hours in advance of the core-collapse itself., Comment: 20 pages
Published: 2022

87. Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV

Author: Collaboration, Super-Kamiokande, Abe, K., Bronner, C., Hayato, Y., Ikeda, M., Imaizumi, S., Ito, H., Kameda, J., Kataoka, Y., Miura, M., Moriyama, S., Nagao, Y., Nakahata, M., Nakajima, Y., Nakayama, S., Okada, T., Okamoto, K., Orii, A., Pronost, G., Sekiya, H., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Yano, T., Akutsu, R., Han, S., Kajita, T., Okumura, K., Tashiro, T., Wang, R., Xia, J., Bravo-Berguño, D., Labarga, L., Marti, Ll., Zaldivar, B., Blaszczyk, F. d. M., Kearns, E., Raaf, J. L., Stone, J. L., Wan, L., Wester, T., Pointin, B. W., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Mine, S., Smy, M. B., Sobel, H. W., Takhistov, V., Weatherly, P., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., Hedri, S. El, Giampaolo, A., Gonin, M., Mueller, Th. A., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Anthony, L. H. V., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Machado, L. N., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Ospina, N., Ludovici, L., Nishimura, Y., Cao, S., Friend, M., Hasegawa, T., Ishida, T., Jakkapu, M., Kobayashi, T., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Nakano, Y., Shiozawa, T., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Ali, A., Ashida, Y., Feng, J., Hirota, S., Ichikawa, A. K., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, Y., Fernandez, P., McCauley, N., Mehta, P., Pritchard, A., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Niwa, T., Sato, K., Tsukada, M., Mijakowski, P., Jung, C. K., Vilela, C., Wilking, M. J., Yanagisawa, C., Harada, M., Hagiwara, K., Horai, T., Ishino, H., Ito, S., Koshio, Y., Ma, W., Piplani, N., Sakai, S., Kuno, Y., Barr, G., Barrow, D., Cook, L., Goldsack, A., Samani, S., Simpson, C., Wark, D., Nova, F., Boschi, T., Di Lodovico, F., Taani, M., Migenda, J., Sedgwick, S. Molina, Zsoldos, S., Yang, J. Y., Jenkins, S. J., Malek, M., McElwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Yu, I., Nishijima, K., Koshiba, M., Iwamoto, K., Ogawa, N., Yokoyama, M., Martens, K., Vagins, M. R., Izumiyama, S., Kuze, M., Tanaka, M., Yoshida, T., Inomoto, M., Ishitsuka, M., Matsumoto, R., Ohta, K., Shinoki, M., Martin, J. F., Tanaka, H. A., Towstego, T., Hartz, M., Konaka, A., de Perio, P., Prouse, N. W., Chen, S., Xu, B. D., Richards, B., Jamieson, B., Walker, J., Minamino, A., Pintaudi, G., Sasaki, R., Posiadala-Zezula, M., Abe, K., Bronner, C., Hayato, Y., Ikeda, M., Imaizumi, S., Ito, H., Kameda, J., Kataoka, Y., Miura, M., Moriyama, S., Nagao, Y., Nakahata, M., Nakajima, Y., Nakayama, S., Okada, T., Okamoto, K., Orii, A., Pronost, G., Sekiya, H., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Yano, T., Akutsu, R., Han, S., Kajita, T., Okumura, K., Tashiro, T., Wang, R., Xia, J., Bravo-Berguno, D., Labarga, L., Marti, L., Zaldivar, B., Blaszczyk, F. D. M., Kearns, E., Raaf, J. L., Stone, J. L., Wan, L., Wester, T., Pointon, B. W., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Mine, S., Smy, M. B., Sobel, H. W., Takhistov, V., Weatherly, P., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., Hedri, S. E., Giampaolo, A., Gonin, M., Mueller, T. A., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Anthony, L. H. V., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Machado, L. N., DE ROSA, Gianfranca, Collazuol, G., Iacob, F., Lamoureux, M., Ospina, N., Ludovici, L., Nishimura, Y., Cao, S., Friend, M., Hasegawa, T., Ishida, T., Jakkapu, M., Kobayashi, T., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Nakano, Y., Shiozawa, T., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Ali, A., Ashida, Y., Feng, J., Hirota, S., Ichikawa, A. K., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, Y., Fernandez, P., Mccauley, N., Mehta, P., Pritchard, A., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Niwa, T., Sato, K., Tsukada, M., Mijakowski, P., Jung, C. K., Vilela, C., Wilking, M. J., Yanagisawa, C., Harada, M., Hagiwara, K., Horai, T., Ishino, H., Ito, S., Koshio, Y., Ma, W., Piplani, N., Sakai, S., Kuno, Y., Barr, G., Barrow, D., Cook, L., Goldsack, A., Samani, S., Simpson, C., Wark, D., Nova, F., Boschi, T., Di Lodovico, F., Taani, M., Migenda, J., Sedgwick, S. M., Zsoldos, S., Yang, J. Y., Jenkins, S. J., Malek, M., Mcelwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Yu, I., Nishijima, K., Koshiba, M., Iwamoto, K., Ogawa, N., Yokoyama, M., Martens, K., Vagins, M. R., Izumiyama, S., Kuze, M., Tanaka, M., Yoshida, T., Inomoto, M., Ishitsuka, M., Matsumoto, R., Ohta, K., Shinoki, M., Martin, J. F., Tanaka, H. A., Towstego, T., Hartz, M., Konaka, A., de Perio, P., Prouse, N. W., Chen, S., Xu, B. D., Richards, B., Jamieson, B., Walker, J., Minamino, A., Pintaudi, G., Sasaki, R., Posiadala-Zezula, M., Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Super-Kamiokande, and UAM. Departamento de Física Teórica
Subjects: Physics - Instrumentation and Detectors, neutrino: solar, water, FOS: Physical sciences, antineutrino/e: energy spectrum, KAMIOKANDE, antineutrino/e: particle identification, Solar neutrino, neutrino: flux, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), neutrino: energy, precession, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Neutron tagging, Neutrino-antineutrino oscillation, background, new physics: search for, High Energy Physics::Phenomenology, Física, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), semileptonic decay, sensitivity, neutrino: magnetic moment, Electron antineutrinos Neutrino–antineutrino oscillation Neutron tagging Solar neutrino Water Cherenkov detector, nucleus: fusion, Electron antineutrinos, Electron antineutrino, Water Cherenkov detector, Neutrino–antineutrino oscillation, High Energy Physics::Experiment, upgrade, gadolinium, signature, experimental results
Abstract: Due to a very low production rate of electron anti-neutrinos ($\bar{\nu}_e$) via nuclear fusion in the Sun, a flux of solar $\bar{\nu}_e$ is unexpected. An appearance of $\bar{\nu}_e$ in solar neutrino flux opens a new window for the new physics beyond the standard model. In particular, a spin-flavor precession process is expected to convert an electron neutrino into an electron anti-neutrino (${\nu_e\to\bar{\nu}_e}$) when neutrino has a finite magnetic moment. In this work, we have searched for solar $\bar{\nu}_e$ in the Super-Kamiokande experiment, using neutron tagging to identify their inverse beta decay signature. We identified 78 $\bar{\nu}_e$ candidates for neutrino energies of 9.3 to 17.3 MeV in 2970.1 live days with a fiducial volume of 22.5 kiloton water (183.0 kton$\cdot$year exposure). The energy spectrum has been consistent with background predictions and we thus derived a 90% confidence level upper limit of ${4.7\times10^{-4}}$ on the $\nu_e\to\bar{\nu}_e$ conversion probability in the Sun. We used this result to evaluate the sensitivity of future experiments, notably the Super-Kamiokande Gadolinium (SK-Gd) upgrade., Comment: 16 pages, 10 figures, 7 tables
Published: 2022

88. The effects of concomitant GERD, dyspepsia, and rhinosinusitis on asthma symptoms and FeNO in asthmatic patients taking controller medications

Author: Ishizuka T, Hisada T, Kamide Y, Aoki H, Seki K, Honjo C, Sakai H, Kadowaki M, Umeda Y, Morikawa M, Anzai M, Ameshima S, Ishizaki T, Dobashi K, Yamada M, and Kusano M
Subjects: Immunologic diseases. Allergy, RC581-607
Abstract: Tamotsu Ishizuka,1,2 Takeshi Hisada,2 Yosuke Kamide,2 Haruka Aoki,2 Kaori Seki,2 Chisato Honjo,1 Hiroyuki Sakai,1 Maiko Kadowaki,1 Yukihiro Umeda,1 Miwa Morikawa,1 Masaki Anzai,1 Shingo Ameshima,1 Takeshi Ishizaki,1 Kunio Dobashi,2 Masanobu Yamada,2 Motoyasu Kusano3 1Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, 2Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Maebashi, Japan Background: Losing the sense of smell, which suggests eosinophilic rhinosinusitis, is a subjective symptom, sometimes reported in asthmatic patients taking controller medication. Upper abdominal symptoms, suggesting gastroesophageal reflux disease (GERD) or functional dyspepsia, occur also in these patients. However, the relationship between these symptoms, concomitant with asthma, and the intensity of eosinophilic airway inflammation remains obscure. Objective: To assess the symptoms of asthma and rhinosinusitis, and to examine the relationship between the symptoms and bronchial inflammation, a new questionnaire, the G scale, was developed. To investigate the effects of GERD, dyspepsia, and rhinosinusitis on asthma symptoms and bronchial inflammation, the symptoms of asthma and rhinosinusitis obtained by the G scale, upper abdominal symptoms obtained by the modified F scale, a questionnaire for GERD and dyspepsia, and fractional exhaled nitric oxide (FeNO) were analyzed. Methods: A prospective, observational study was performed in four hospitals in Gunma prefecture, and a retrospective analysis was done using data obtained from five hospitals in Gunma prefecture and Fukui prefecture, Japan. A total of 252 patients diagnosed as having asthma participated in the prospective study. Results: The frequency of daytime phlegm or losing the sense of smell had a positive correlation with FeNO levels in asthmatic patients taking controller medication. Upper abdominal symptoms, as well as symptoms suggesting rhinitis, were well correlated with asthma symptoms. However, neither upper abdominal symptoms nor rhinitis symptoms increased FeNO levels, which reflect eosinophilic airway inflammation during treatment for asthma. On the other hand, the degree of upper abdominal symptoms or dyspepsia symptoms had a weak but significant negative correlation with FeNO levels. Conclusion: Daytime phlegm and losing the sense of smell suggest that eosinophilic airway inflammation persists, despite anti-inflammatory therapy, in patients with asthma. Although rhinitis and GERD made the subjective symptoms of asthma worse, they did not seem to enhance eosinophilic airway inflammation. Keywords: asthma symptoms, FeNO, rhinosinusitis, GERD, dyspepsia
Published: 2014

89. Searching for Supernova Bursts in Super-Kamiokande IV

Author: Mori, M., primary, Abe, K., additional, Hayato, Y., additional, Hiraide, K., additional, Ieki, K., additional, Ikeda, M., additional, Imaizumi, S., additional, Kameda, J., additional, Kanemura, Y., additional, Kaneshima, R., additional, Kashiwagi, Y., additional, Kataoka, Y., additional, Miki, S., additional, Mine, S., additional, Miura, M., additional, Moriyama, S., additional, Nagao, Y., additional, Nakahata, M., additional, Nakano, Y., additional, Nakayama, S., additional, Noguchi, Y., additional, Okada, T., additional, Okamoto, K., additional, Orii, A., additional, Sato, K., additional, Sekiya, H., additional, Shiba, H., additional, Shimizu, K., additional, Shiozawa, M., additional, Sonoda, Y., additional, Suzuki, Y., additional, Takeda, A., additional, Takemoto, Y., additional, Takenaka, A., additional, Tanaka, H., additional, Tomiya, T., additional, Watanabe, S., additional, Yano, T., additional, Yoshida, S., additional, Han, S., additional, Kajita, T., additional, Okumura, K., additional, Tashiro, T., additional, Wang, X., additional, Xia, J., additional, Megias, G. D., additional, Bravo-Berguño, D., additional, Fernandez, P., additional, Labarga, L., additional, Ospina, N., additional, Zaldivar, B., additional, Zsoldos, S., additional, Pointon, B. W., additional, Blaszczyk, F. D. M., additional, Kearns, E., additional, Raaf, J. L., additional, Stone, J. L., additional, Wan, L., additional, Wester, T., additional, Bian, J., additional, Griskevich, N. J., additional, Kropp, W. R., additional, Locke, S., additional, Smy, M. B., additional, Sobel, H. W., additional, Takhistov, V., additional, A., Yankelevich, additional, Hill, J., additional, Kim, J. Y., additional, Lim, I. T., additional, Park, R. G., additional, Bodur, B., additional, Scholberg, K., additional, Walter, C. W., additional, Bernard, L., additional, Coffani, A., additional, Drapier, O., additional, El Hedri, S., additional, Giampaolo, A., additional, Mueller, Th. A., additional, Paganini, P., additional, Quilain, B., additional, Santos, A. D., additional, Ishizuka, T., additional, Nakamura, T., additional, Jang, J. S., additional, Learned, J. G., additional, Anthony, L. H. V., additional, Martin, D., additional, Scott, M., additional, Sztuc, A. A., additional, Uchida, Y., additional, Berardi, V., additional, Catanesi, M. G., additional, Radicioni, E., additional, Calabria, N. F., additional, Machado, L. N., additional, De Rosa, G., additional, Collazuol, G., additional, Iacob, F., additional, Lamoureux, M., additional, Mattiazzi, M., additional, Ludovici, L., additional, Gonin, M., additional, Pronost, G., additional, Maekawa, Y., additional, Nishimura, Y., additional, Fujisawa, C., additional, Friend, M., additional, Hasegawa, T., additional, Ishida, T., additional, Kobayashi, T., additional, Jakkapu, M., additional, Matsubara, T., additional, Nakadaira, T., additional, Nakamura, K., additional, Oyama, Y., additional, Sakashita, K., additional, Sekiguchi, T., additional, Tsukamoto, T., additional, Ozaki, H., additional, Shiozawa, T., additional, Suzuki, A. T., additional, Takeuchi, Y., additional, Yamamoto, S., additional, Kotsar, Y., additional, Ashida, Y., additional, Bronner, C., additional, Feng, J., additional, Hirota, S., additional, Kikawa, T., additional, Nakaya, T., additional, Wendell, R. A., additional, Yasutome, K., additional, McCauley, N., additional, Mehta, P., additional, Tsui, K. M., additional, Fukuda, Y., additional, Itow, Y., additional, Menjo, H., additional, Ninomiya, K., additional, Niwa, T., additional, Tsukada, M., additional, Lagoda, J., additional, Lakshmi, S. M., additional, Mijakowski, P., additional, Zalipska, J., additional, Mandal, M., additional, Prabhu, Y. S., additional, Jiang, J., additional, Jung, C. K., additional, Vilela, C., additional, Wilking, M. J., additional, Yanagisawa, C., additional, Jia, M., additional, Hagiwara, K., additional, Harada, M., additional, Horai, T., additional, Ishino, H., additional, Ito, S., additional, Kitagawa, H., additional, Koshio, Y., additional, Ma, W., additional, Nakanishi, F., additional, Piplani, N., additional, Sakai, S., additional, Barr, G., additional, Barrow, D., additional, Cook, L., additional, Samani, S., additional, Wark, D., additional, Nova, F., additional, Boschi, T., additional, Gao, J., additional, Goldsack, A., additional, Katori, T., additional, Di Lodovico, F., additional, Migenda, J., additional, Taani, M., additional, Yang, J. Y., additional, Jenkins, S. J., additional, Malek, M., additional, McElwee, J. M., additional, Stone, O., additional, Thiesse, M. D., additional, Thompson, L. F., additional, Okazawa, H., additional, Kim, S. B., additional, Seo, J. W., additional, Yu, I., additional, Nishijima, K., additional, Koshiba, M., additional, Nakagiri, K., additional, Nakajima, Y., additional, Iwamoto, K., additional, Taniuchi, N., additional, Yokoyama, M., additional, Martens, K., additional, de Perio, P., additional, Vagins, M. R., additional, Kuze, M., additional, Izumiyama, S., additional, Yoshida, T., additional, Inomoto, M., additional, Ishitsuka, M., additional, Ito, H., additional, Kinoshita, T., additional, Matsumoto, R., additional, Ohta, K., additional, Ommura, Y., additional, Shigeta, N., additional, Shinoki, M., additional, Suganuma, T., additional, Yamauchi, K., additional, Martin, J. F., additional, Tanaka, H. A., additional, Towstego, T., additional, Akutsu, R., additional, Gousy-Leblanc, V., additional, Hartz, M., additional, Konaka, A., additional, Prouse, N. W., additional, Chen, S., additional, Xu, B. D., additional, Zhang, B., additional, Posiadala-Zezula, M., additional, Hadley, D., additional, Nicholson, M., additional, O’Flaherty, M., additional, Richards, B., additional, Ali, A., additional, Jamieson, B., additional, Walker, J., additional, Marti, Ll., additional, Minamino, A., additional, Pintaudi, G., additional, Sasaki, R., additional, Sano, S., additional, Suzuki, S., additional, Wada, K., additional, Cao, S., additional, ichikawa, A., additional, Nakamura, K. D., additional, Tairafune, S., additional, and Choi, K., additional
Published: 2022
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90. Neutron tagging following atmospheric neutrino events in a water Cherenkov detector

Author: Abe, K., primary, Haga, Y., additional, Hayato, Y., additional, Hiraide, K., additional, Ieki, K., additional, Ikeda, M., additional, Imaizumi, S., additional, Iyogi, K., additional, Kameda, J., additional, Kanemura, Y., additional, Kataoka, Y., additional, Kato, Y., additional, Kishimoto, Y., additional, Miki, S., additional, Mine, S., additional, Miura, M., additional, Mochizuki, T., additional, Moriyama, S., additional, Nagao, Y., additional, Nakahata, M., additional, Nakajima, T., additional, Nakano, Y., additional, Nakayama, S., additional, Okada, T., additional, Okamoto, K., additional, Orii, A., additional, Sato, K., additional, Sekiya, H., additional, Shiozawa, M., additional, Sonoda, Y., additional, Suzuki, Y., additional, Takeda, A., additional, Takemoto, Y., additional, Takenaka, A., additional, Tanaka, H., additional, Tasaka, S., additional, Tomura, T., additional, Ueno, K., additional, Watanabe, S., additional, Yano, T., additional, Yokozawa, T., additional, Han, S., additional, Irvine, T., additional, Kajita, T., additional, Kametani, I., additional, Kaneyuki, K., additional, Lee, K.P., additional, McLachlan, T., additional, Okumura, K., additional, Richard, E., additional, Tashiro, T., additional, Wang, R., additional, Xia, J., additional, Megias, G.D., additional, Bravo-Berguño, D., additional, Labarga, L., additional, Zaldivar, B., additional, Goldhaber, M., additional, Blaszczyk, F.d.M., additional, Gustafson, J., additional, Kachulis, C., additional, Kearns, E., additional, Raaf, J.L., additional, Stone, J.L., additional, Sulak, L.R., additional, Sussman, S., additional, Wan, L., additional, Wester, T., additional, Pointon, B.W., additional, Bian, J., additional, Carminati, G., additional, Elnimr, M., additional, Griskevich, N.J., additional, Kropp, W.R., additional, Locke, S., additional, Renshaw, A., additional, Smy, M.B., additional, Sobel, H.W., additional, Takhistov, V., additional, Weatherly, P., additional, Ganezer, K.S., additional, Hartfiel, B.L., additional, Hill, J., additional, Keig, W.E., additional, Hong, N., additional, Kim, J.Y., additional, Lim, I.T., additional, Park, R.G., additional, Akiri, T., additional, Bodur, B., additional, Himmel, A., additional, Li, Z., additional, O'Sullivan, E., additional, Scholberg, K., additional, Walter, C.W., additional, Wongjirad, T., additional, Bernard, L., additional, Coffani, A., additional, Drapier, O., additional, El Hedri, S., additional, Giampaolo, A., additional, Imber, J., additional, Mueller, Th.A., additional, Paganini, P., additional, Quilain, B., additional, Ishizuka, T., additional, Nakamura, T., additional, Jang, J.S., additional, Choi, K., additional, Learned, J.G., additional, Matsuno, S., additional, Smith, S.N., additional, Amey, J., additional, Anthony, L.H.V., additional, Litchfield, R.P., additional, Ma, W.Y., additional, Marin, D., additional, Sztuc, A.A., additional, Uchida, Y., additional, Wascko, M.O., additional, Berardi, V., additional, Catanesi, M.G., additional, Intonti, R.A., additional, Radicioni, E., additional, Calabria, N.F., additional, De Rosa, G., additional, Machado, L.N., additional, Collazuol, G., additional, Iacob, F., additional, Lamoureux, M., additional, Ospina, N., additional, Ludovici, L., additional, Gonin, M., additional, Pronost, G., additional, Maekawa, Y., additional, Nishimura, Y., additional, Cao, S., additional, Friend, M., additional, Hasegawa, T., additional, Ishida, T., additional, Ishii, T., additional, Jakkapu, M., additional, Kobayashi, T., additional, Matsubara, T., additional, Nakadaira, T., additional, Nakamura, K., additional, Oyama, Y., additional, Sakashita, K., additional, Sekiguchi, T., additional, Tsukamoto, T., additional, Boschi, T., additional, Di Lodovico, F., additional, Migenda, J., additional, Molina Sedgwick, S., additional, Taani, M., additional, Zsoldos, S., additional, Abe, K.E., additional, Hasegawa, M., additional, Isobe, Y., additional, Kotsar, Y., additional, Miyabe, H., additional, Ozaki, H., additional, Shiozawa, T., additional, Sugimoto, T., additional, Suzuki, A.T., additional, Takeuchi, Y., additional, Yamamoto, S., additional, Ali, A., additional, Ashida, Y., additional, Bronner, C., additional, Feng, J., additional, Hayashino, T., additional, Hiraki, T., additional, Hirota, S., additional, Huang, K., additional, Jiang, M., additional, Kikawa, T., additional, Mori, M., additional, Murakami, A., additional, Nakamura, KE., additional, Nakaya, T., additional, Patel, N.D., additional, Suzuki, K., additional, Takahashi, S., additional, Tateishi, K., additional, Wendell, R.A., additional, Yasutome, K., additional, Fernandez, P., additional, McCauley, N., additional, Mehta, P., additional, Pritchard, A., additional, Tsui, K.M., additional, Fukuda, Y., additional, Itow, Y., additional, Menjo, H., additional, Mitsuka, G., additional, Murase, M., additional, Muto, F., additional, Niwa, T., additional, Suzuki, T., additional, Tsukada, M., additional, Frankiewicz, K., additional, Mijakowski, P., additional, Hignight, J., additional, Jiang, J., additional, Jung, C.K., additional, Li, X., additional, Palomino, J.L., additional, Santucci, G., additional, Vilela, C., additional, Wilking, M.J., additional, Yanagisawa, C., additional, Fukuda, D., additional, Hagiwara, K., additional, Harada, M., additional, Horai, T., additional, Ishino, H., additional, Ito, S., additional, Kayano, T., additional, Kibayashi, A., additional, Kitagawa, H., additional, Koshio, Y., additional, Ma, W., additional, Mori, T., additional, Nagata, H., additional, Piplani, N., additional, Sakai, S., additional, Sakuda, M., additional, Takahira, Y., additional, Xu, C., additional, Yamaguchi, R., additional, Kuno, Y., additional, Barr, G., additional, Barrow, D., additional, Cook, L., additional, Goldsack, A., additional, Samani, S., additional, Simpson, C., additional, Wark, D., additional, Nova, F., additional, Tacik, R., additional, Yang, J.Y., additional, Cole, A., additional, Jenkins, S.J., additional, Malek, M., additional, McElwee, J.M., additional, Stone, O., additional, Thiesse, M.D., additional, Thompson, L.F., additional, Okazawa, H., additional, Choi, Y., additional, Kim, S.B., additional, Yu, I., additional, Ichikawa, A.K., additional, Ito, K., additional, Nishijima, K., additional, Calland, R.G., additional, de Perio, P., additional, Martens, K., additional, Murdoch, M., additional, Vagins, M.R., additional, Koshiba, M., additional, Totsuka, Y., additional, Iwamoto, K., additional, Nakajima, Y., additional, Ogawa, N., additional, Suda, Y., additional, Yokoyama, M., additional, Hamabe, D., additional, Izumiyama, S., additional, Kuze, M., additional, Okajima, Y., additional, Tanaka, M., additional, Yoshida, T., additional, Inomoto, M., additional, Ishitsuka, M., additional, Ito, H., additional, Matsumoto, R., additional, Ohta, K., additional, Shinoki, M., additional, Martin, J.F., additional, Nantais, C.M., additional, Tanaka, H.A., additional, Towstego, T., additional, Akutsu, R., additional, Hartz, M., additional, Konaka, A., additional, Prouse, N.W., additional, Chen, S., additional, Xu, B.D., additional, Zhang, Y., additional, Berkman, S., additional, Tobayama, S., additional, Connolly, K., additional, Wilkes, R.J., additional, Posiadala-Zezula, M., additional, Hadley, D., additional, Richards, B., additional, Jamieson, B., additional, Walker, J., additional, Marti, Ll., additional, Minamino, A., additional, Pintaudi, G., additional, Sano, S., additional, and Sasaki, R., additional
Published: 2022
Full Text: View/download PDF

91. Pre-supernova Alert System for Super-Kamiokande

Author: Machado, L. N., primary, Abe, K., additional, Hayato, Y., additional, Hiraide, K., additional, Ieki, K., additional, Ikeda, M., additional, Kameda, J., additional, Kanemura, Y., additional, Kaneshima, R., additional, Kashiwagi, Y., additional, Kataoka, Y., additional, Miki, S., additional, Mine, S., additional, Miura, M., additional, Moriyama, S., additional, Nakano, Y., additional, Nakahata, M., additional, Nakayama, S., additional, Noguchi, Y., additional, Okamoto, K., additional, Sato, K., additional, Sekiya, H., additional, Shiba, H., additional, Shimizu, K., additional, Shiozawa, M., additional, Sonoda, Y., additional, Suzuki, Y., additional, Takeda, A., additional, Takemoto, Y., additional, Takenaka, A., additional, Tanaka, H., additional, Watanabe, S., additional, Yano, T., additional, de Perio, P., additional, Martens, K., additional, Vagins, M. R., additional, Bian, J., additional, Griskevich, N. J., additional, Kropp, W. R., additional, Locke, S., additional, Smy, M. B., additional, Sobel, H. W., additional, Takhistov, V., additional, Yankelevich, A., additional, Han, S., additional, Kajita, T., additional, Okumura, K., additional, Tashiro, T., additional, Tomiya, T., additional, Wang, X., additional, Xia, J., additional, Yoshida, S., additional, Megias, G. D., additional, Fernandez, P., additional, Labarga, L., additional, Ospina, N., additional, Zaldivar, B., additional, Pointon, B. W., additional, Akutsu, R., additional, Gousy-Leblanc, V., additional, Hartz, M., additional, Konaka, A., additional, Prouse, N. W., additional, Kearns, E., additional, Raaf, J. L., additional, Wan, L., additional, Wester, T., additional, Hill, J., additional, Kim, J. Y., additional, Lim, I. T., additional, Park, R. G., additional, Bodur, B., additional, Scholberg, K., additional, Walter, C. W., additional, Bernard, L., additional, Coffani, A., additional, Drapier, O., additional, El Hedri, S., additional, Giampaolo, A., additional, Mueller, Th. A., additional, Santos, A. D., additional, Paganini, P., additional, Quilain, B., additional, Ishizuka, T., additional, Nakamura, T., additional, Jang, J. S., additional, Learned, J. G., additional, Cao, S., additional, Choi, K., additional, Anthony, L. H. V., additional, Martin, D., additional, Scott, M., additional, Sztuc, A. A., additional, Uchida, Y., additional, Berardi, V., additional, Catanesi, M. G., additional, Radicioni, E., additional, Calabria, N. F., additional, De Rosa, G., additional, Collazuol, G., additional, Iacob, F., additional, Lamoureux, M., additional, Mattiazzi, M., additional, Ludovici, L., additional, Gonin, M., additional, Pronost, G., additional, Fujisawa, C., additional, Maekawa, Y., additional, Nishimura, Y., additional, Sasaki, R., additional, Friend, M., additional, Hasegawa, T., additional, Ishida, T., additional, Jakkapu, M., additional, Kobayashi, T., additional, Matsubara, T., additional, Nakadaira, T., additional, Nakamura, K., additional, Oyama, Y., additional, Sakashita, K., additional, Sekiguchi, T., additional, Tsukamoto, T., additional, Boschi, T., additional, Di Lodovico, F., additional, Gao, J., additional, Goldsack, A., additional, Katori, T., additional, Migenda, J., additional, Taani, M., additional, Zsoldos, S., additional, Kotsar, Y., additional, Ozaki, H., additional, Suzuki, A. T., additional, Takeuchi, Y., additional, Yaamoto, S., additional, Bronner, C., additional, Feng, J., additional, Kikawa, T., additional, Mori, M., additional, Nakaya, T., additional, Wendell, R. A., additional, Yasutome, K., additional, Jenkins, S. J., additional, McCauley, N., additional, Mehta, P., additional, Tsui, K. M., additional, Fukuda, Y., additional, Itow, Y., additional, Menjo, H., additional, Ninomiya, K., additional, Lagoda, J., additional, Lakshmi, S. M., additional, Mandal, M., additional, Mijakowski, P., additional, Prabhu, Y. S., additional, Zalipska, J., additional, Jia, M., additional, Jiang, J., additional, Jung, C. K., additional, Wilking, M. J., additional, Yanagisawa, C., additional, Harada, M., additional, Ishino, H., additional, Ito, S., additional, Kitagawa, H., additional, Koshio, Y., additional, Ma, W., additional, Nakanishi, F., additional, Sakai, S., additional, Barr, G., additional, Barrow, D., additional, Cook, L., additional, Samani, S., additional, Wark, D., additional, Nova, F., additional, Yang, J. Y., additional, Malek, M., additional, McElwee, J. M., additional, Stone, O., additional, Thiesse, M. D., additional, Thompson, L. F., additional, Okazawa, H., additional, Kim, S. B., additional, Seo, J. W., additional, Yu, I., additional, Ichikawa, A. K., additional, Nakamura, K. D., additional, Tairafune, S., additional, Nishijima, K., additional, Iwamoto, K., additional, Nakagiri, K., additional, Nakajima, Y., additional, Taniuchi, N., additional, Yokoyama, M., additional, Izumiyama, S., additional, Kuze, M., additional, Inomoto, M., additional, Ishitsuka, M., additional, Ito, H., additional, Kinoshita, T., additional, Matsumoto, R., additional, Ommura, Y., additional, Shigeta, N., additional, Shinoki, M., additional, Suganuma, T., additional, Yonenaga, M., additional, Martin, J. F., additional, Tanaka, H. A., additional, Towstego, T., additional, Chen, S., additional, Xu, B. D., additional, Zhang, B., additional, Posiadala-Zezula, M., additional, Hadley, D., additional, Nicholson, M., additional, O’Flaherty, M., additional, Richards, B., additional, Ali, A., additional, Jamieson, B., additional, Marti, Ll., additional, Minamino, A., additional, Pintaudi, G., additional, Sano, S., additional, Suzuki, S., additional, and Wada, K., additional
Published: 2022
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92. Iris rubeosis and hyphema caused by chemical injury due to household detergent

Author: Suto C, Ishizuka T, and Toshida H
Subjects: Ophthalmology, RE1-994
Abstract: Chikako Suto,1,2 Tetsuya Ishizuka,1 Hiroshi Toshida31Department of Ophthalmology, Saiseikai Kurihashi Hospital, Kuki, Saitama, 2Department of Ophthalmology, Tokyo Women's Medical University, Shinjuku, Tokyo, 3Department of Ophthalmology, Juntendo University Shizuoka Hospital, Izunokuni, Shizuoka, JapanAbstract: We report an unusual case of iris rubeosis and hyphema caused by chemical injury due to household detergent. A 74-year-old man with a 15-year history of diabetes mellitus was refilling a container with household detergent at home. He splashed the detergent in his eyes. Slit-lamp examination revealed extensive epithelial damage to the left eye, leading to a persistent corneal epithelial defect. We used a bandage soft contact lens with levofloxacin eye drops as concomitant therapy in order to promote healing. However, a strain of fluoroquinolone-resistant Corynebacterium colonized the eye, so that the corneal ulcer eventually became severe. Use of the bandage soft contact lens was discontinued. His antimicrobial agent was changed to cefmenoxime, a drug to which fluoroquinolone-resistant Corynebacterium is sensitive, and topical instillation of autologous serum subsequently promoted improvement of the ulcer. On day 38 after injury, iris rubeosis led to hyphema and ghost cell glaucoma. With improvement of his corneal epithelial defect, the iris rubeosis and hyphema regressed and his visual acuity improved to 20/25 on the left eye. To the best of our knowledge, this is the first report of a case resulting in severe complications due to chemical injury by a neutral detergent. Ophthalmologists should be aware that corneal epithelial damage may become prolonged in elderly patients with diabetes, and unexpectedly severe when wearing bandage soft contact lens, with infection of Corynebacterium resistant to fluoroquinolones, even if the chemical agent is a neutral detergent.Keywords: chemical injury, household detergent, persistent corneal epithelial defect, iris rubeosis, fluoroquinolone-resistant Corynebacterium, bandage soft contact lens
Published: 2012

93. Searching for Supernova Bursts in Super-Kamiokande IV

Author: Mori, M., Abe, K., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Imaizumi, S., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nagao, Y., Nakahata, M., Nakano, Y., Nakayama, S., Noguchi, Y., Okada, T., Okamoto, K., Orii, A., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Tomiya, T., Watanabe, S., Yano, T., Yoshida, S., Han, S., Kajita, T., Okumura, K., Tashiro, T., Wang, X., Xia, J., Megias, G. D., Bravo-Berguño, D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Zsoldos, S., Pointon, B. W., Blaszczyk, F. D. M., Kearns, E., Raaf, J. L., Stone, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., A., Yankelevich, Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Mueller, Th. A., Paganini, P., Quilain, B., Santos, A. D., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Machado, L. N., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Pronost, G., Maekawa, Y., Nishimura, Y., Fujisawa, C., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Ozaki, H., Shiozawa, T., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Kotsar, Y., Ashida, Y., Bronner, C., Feng, J., Hirota, S., Kikawa, T., Nakaya, T., Wendell, R. A., Yasutome, K., McCauley, N., Mehta, P., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Niwa, T., Tsukada, M., Lagoda, J., Lakshmi, S. M., Mijakowski, P., Zalipska, J., Mandal, M., Prabhu, Y. S., Jiang, J., Jung, C. K., Vilela, C., Wilking, M. J., Yanagisawa, C., Jia, M., Hagiwara, K., Harada, M., Horai, T., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Ma, W., Nakanishi, F., Piplani, N., Sakai, S., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Nova, F., Boschi, T., Gao, J., Goldsack, A., Katori, T., Di Lodovico, F., Migenda, J., Taani, M., Yang, J. Y., Jenkins, S. J., Malek, M., McElwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Seo, J. W., Yu, I., Nishijima, K., Koshiba, M., Nakagiri, K., Nakajima, Y., Iwamoto, K., Taniuchi, N., Yokoyama, M., Martens, K., de Perio, P., Vagins, M. R., Kuze, M., Izumiyama, S., Yoshida, T., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Matsumoto, R., Ohta, K., Ommura, Y., Shigeta, N., Shinoki, M., Suganuma, T., Yamauchi, K., Martin, J. F., Tanaka, H. A., Towstego, T., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Prouse, N. W., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Hadley, D., Nicholson, M., O’Flaherty, M., Richards, B., Ali, A., Jamieson, B., Walker, J., Marti, Ll., Minamino, A., Pintaudi, G., Sasaki, R., Sano, S., Suzuki, S., Wada, K., Cao, S., ichikawa, A., Nakamura, K. D., Tairafune, S., Choi, K., Mori, M., Abe, K., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Imaizumi, S., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nagao, Y., Nakahata, M., Nakano, Y., Nakayama, S., Noguchi, Y., Okada, T., Okamoto, K., Orii, A., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Tomiya, T., Watanabe, S., Yano, T., Yoshida, S., Han, S., Kajita, T., Okumura, K., Tashiro, T., Wang, X., Xia, J., Megias, G. D., Bravo-Berguño, D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Zsoldos, S., Pointon, B. W., Blaszczyk, F. D. M., Kearns, E., Raaf, J. L., Stone, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., A., Yankelevich, Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Mueller, Th. A., Paganini, P., Quilain, B., Santos, A. D., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Machado, L. N., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Pronost, G., Maekawa, Y., Nishimura, Y., Fujisawa, C., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Ozaki, H., Shiozawa, T., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Kotsar, Y., Ashida, Y., Bronner, C., Feng, J., Hirota, S., Kikawa, T., Nakaya, T., Wendell, R. A., Yasutome, K., McCauley, N., Mehta, P., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Niwa, T., Tsukada, M., Lagoda, J., Lakshmi, S. M., Mijakowski, P., Zalipska, J., Mandal, M., Prabhu, Y. S., Jiang, J., Jung, C. K., Vilela, C., Wilking, M. J., Yanagisawa, C., Jia, M., Hagiwara, K., Harada, M., Horai, T., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Ma, W., Nakanishi, F., Piplani, N., Sakai, S., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Nova, F., Boschi, T., Gao, J., Goldsack, A., Katori, T., Di Lodovico, F., Migenda, J., Taani, M., Yang, J. Y., Jenkins, S. J., Malek, M., McElwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Seo, J. W., Yu, I., Nishijima, K., Koshiba, M., Nakagiri, K., Nakajima, Y., Iwamoto, K., Taniuchi, N., Yokoyama, M., Martens, K., de Perio, P., Vagins, M. R., Kuze, M., Izumiyama, S., Yoshida, T., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Matsumoto, R., Ohta, K., Ommura, Y., Shigeta, N., Shinoki, M., Suganuma, T., Yamauchi, K., Martin, J. F., Tanaka, H. A., Towstego, T., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Prouse, N. W., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Hadley, D., Nicholson, M., O’Flaherty, M., Richards, B., Ali, A., Jamieson, B., Walker, J., Marti, Ll., Minamino, A., Pintaudi, G., Sasaki, R., Sano, S., Suzuki, S., Wada, K., Cao, S., ichikawa, A., Nakamura, K. D., Tairafune, S., and Choi, K.
Abstract: Super-Kamiokande has been searching for neutrino bursts characteristic of core-collapse supernovae continuously, in real time, since the start of operations in 1996. The present work focuses on detecting more distant supernovae whose event rate may be too small to trigger in real time, but may be identified using an offline approach. The analysis of data collected from 2008 to 2018 found no evidence of distant supernovae bursts. This establishes an upper limit of 0.29 yr⁻¹ on the rate of core-collapse supernovae out to 100 kpc at 90% C.L. For supernovae that fail to explode and collapse directly to black holes the limit reaches to 300 kpc.
Published: 2022

94. Three-dimensional drift chambers of the DCBA experiment for neutrinoless double beta decay search

Author: Ishikawa, T., Igarashi, H., Sumiyoshi, T., Ishihara, N., Iwai, G., Iwase, H., Kato, Y., Kawai, M., Kondou, Y., Haruyama, T., Inagaki, T., Makida, Y., Ohama, T., Takahashi, K., Yamada, Y., Tashiro, E., Ishizuka, T., Kitamura, S., Teramoto, Y., Nakano, I., Sakamoto, Y., Nagasaka, Y., Tamura, N., Tanaka, K., and Ito, R.
Published: 2011
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95. Search for proton decay via $p\rightarrow μ^+K^0$ in 0.37 megaton-years exposure of Super-Kamiokande

Author: Kamiokande Collaboration, Matsumoto, R., Abe, K., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Okamoto, K., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Xia, J., Yoshida, S., Megias, G. D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., Hedri, S. El, Giampaolo, A., Mueller, Th. A., Santos, A. D., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Choi, K., Cao, S., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Machado, L. N., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Boschi, T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Taani, M., Xie, Z., Zsoldos, S., Kotsar, Y., Ozaki, H., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Bronner, C., Feng, J., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., McCauley, N., Mehta, P., Tsui, K. M., Tarrant, A., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Lagoda, J., Lakshmi, S. M., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jiang, M. Jia J., Jung, C. K., Wilking, M. J., Yanagisawa, C., Harada, M., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Ma, W., Nakanishi, F., Sakai, S., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Holin, A., Nova, F., Yang, J. Y., Malek, M., McElwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Kwon, E., Seo, J. W., Yu, I., Ichikawa, A. K., Nakamura, K. D., Tairafune, S., Nishijima, K., Koshiba, M., Iwamoto, K., Nakagiri, K., Nakajima, Y., Shima, S., Taniuchi, N., Yokoyama, M., Martens, K., de Perio, P., Vagins, M. R., Kuze, M., Izumiyama, S., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Ommura, Y., Shigeta, N., Shinoki, M., Suganuma, T., Yamauchi, K., Martin, J. F., Tanaka, H. A., Towstego, T., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Li, X., Prouse, N. W., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Boyd, S. B., Hadley, D., Nicholson, M., O'Flaherty, M., Richards, B., Ali, A., Jamieson, B., Marti, Ll., Minamino, A., Pintaudi, G., Sano, S., Suzuki, S., and Wada, K.
Subjects: High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract: We searched for proton decay via $p\toμ^+K^0$ in 0.37\,Mton$\cdot$years of data collected between 1996 and 2018 from the Super-Kamiokande water Cherenkov experiment. The selection criteria were defined separately for $K^0_S$ and $K^0_L$ channels. No significant event excess has been observed. As a result of this analysis, which extends the previous search by an additional 0.2\,Mton$\cdot$years of exposure and uses an improved event reconstruction, we set a lower limit of $3.6\times10^{33}$ years on the proton lifetime., 13 pages, 11 figures
Published: 2022
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96. Search for Cosmic-ray Boosted Sub-GeV Dark Matter using Recoil Protons at Super-Kamiokande

Author: Kamiokande Collaboration, Abe, K., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Okamoto, K., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Xia, J., Yoshida, S., Megias, G. D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Hill, J., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., Hedri, S. El, Giampaolo, A., Mueller, Th. A., Santos, A. D., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Choi, K., Cao, S., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Machado, L. N., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Boschi, T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Taani, M., Zsoldos, S., Kotsar, Y., Ozaki, H., Suzuki, A. T., Takeuchi, Y., Bronner, C., Feng, J., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., McCauley, N., Mehta, P., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Lagoda, J., Lakshmi, S. M., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jia, M., Jiang, J., Jung, C. K., Wilking, M. J., Yanagisawa, C., Harada, M., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Nakanishi, F., Sakai, S., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Nova, F., Yang, J. Y., Malek, M., McElwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Seo, J. W., Yu, I., Ichikawa, A. K., Nakamura, K. D., Tairafune, S., Nishijima, K., Iwamoto, K., Nakagiri, K., Nakajima, Y., Taniuchi, N., Yokoyama, M., Martens, K., de Perio, P., Vagins, M. R., Kuze, M., Izumiyama, S., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Matsumoto, R., Ommura, Y., Shigeta, N., Shinoki, M., Suganuma, T., Yamauchi, K., Martin, J. F., Tanaka, H. A., Towstego, T., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Prouse, N. W., Chen, S., Xu, B. D., Zhang, B., Posiadala-Zezula, M., Hadley, D., Nicholson, M., O'Flaherty, M., Richards, B., Ali, A., Jamieson, B., Marti, Ll., Minamino, A., Pintaudi, G., Sano, S., Suzuki, S., Wada, K., and HEP, INSPIRE
Subjects: dark matter: interaction, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Super-Kamiokande Particle Dark Matter Water Cherenkov Detector, dark matter: mass, boosted particle, FOS: Physical sciences, General Physics and Astronomy, dark matter: elastic scattering, neutrino: background, KAMIOKANDE, dark matter: direct detection, mass dependence, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), neutrino: atmosphere, cosmic radiation, p: recoil, mediation, galaxy, cross section: upper limit, cross section: elastic scattering, experimental results
Abstract: We report a search for cosmic-ray boosted dark matter with protons using the 0.37 megaton$\times$years data collected at Super-Kamiokande experiment during the 1996-2018 period (SKI-IV phase). We searched for an excess of proton recoils above the atmospheric neutrino background from the vicinity of the Galactic Center. No such excess is observed, and limits are calculated for two reference models of dark matter with either a constant interaction cross-section or through a scalar mediator. This is the first experimental search for boosted dark matter with hadrons using directional information. The results present the most stringent limits on cosmic-ray boosted dark matter and exclude the dark matter-nucleon elastic scattering cross-section between $10^{-33}\text{ cm}^{2}$ and $10^{-27}\text{ cm}^{2}$ for dark matter mass from 10 MeV/$c^2$ to 1 GeV/$c^2$., With 1-page appendix, updated to match the journal version
Published: 2022

97. Search for proton decay via p →μ+K0 in 0.37 megaton-years exposure of Super-Kamiokande

Author: Matsumoto, R., Abe, K., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., Noguchi, Y., Okamoto, K., Sato, K., Sekiya, H., Shiba, H., Shimizu, K., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Tomiya, T., Wang, X., Xia, J., Yoshida, S., Megias, G. D., Fernandez, P., Labarga, L., Ospina, N., Zaldivar, B., Pointon, B. W., Kearns, E., Raaf, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Smy, M. B., Sobel, H. W., Takhistov, V., Yankelevich, A., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Bernard, L., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Mueller, T. A., Santos, A. D., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Choi, K., Cao, S., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Machado, L. N., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ludovici, L., Gonin, M., Pronost, G., Fujisawa, C., Maekawa, Y., Nishimura, Y., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Boschi, T., Di Lodovico, F., Gao, J., Goldsack, A., Katori, T., Migenda, J., Taani, M., Xie, Z., Zsoldos, S., Kotsar, Y., Ozaki, H., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Bronner, C., Feng, J., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Jenkins, S. J., Mccauley, N., Mehta, P., Tsui, K. M., Tarrant, A., Fukuda, Y., Itow, Y., Menjo, H., Ninomiya, K., Lagoda, J., Lakshmi, S. M., Mandal, M., Mijakowski, P., Prabhu, Y. S., Zalipska, J., Jia, M., Jiang, J., Jung, C. K., Wilking, M. J., Yanagisawa, C., Harada, M., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Ma, W., Nakanishi, F., Sakai, S., Barr, G., Barrow, D., Cook, L., Samani, S., Wark, D., Holin, A., Nova, F., Yang, J. Y., Malek, M., Mcelwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Kwon, E., Seo, J. W., Yu, I., Ichikawa, A. K., Nakamura, K. D., Tairafune, S., Nishijima, K., Koshiba, M., Iwamoto, K., Nakagiri, K., Nakajima, Y., Shima, S., Taniuchi, N., Yokoyama, M., Martens, K., De Perio, P., Vagins, M. R., Kuze, M., Izumiyama, S., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Ommura, Y., Shigeta, N., Shinoki, M., Suganuma, T., Yamauchi, K., Martin, J. F., Tanaka, H. A., Towstego, T., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., Li, X., Prouse, N. W., Chen, S., B. D., Xu, Zhang, B., Posiadala-Zezula, M., Boyd, S. B., Hadley, D., Nicholson, M., O'Flaherty, M., Richards, B., Ali, A., Jamieson, B., Marti, L., Minamino, A., Pintaudi, G., Sano, S., Suzuki, S., and Wada, K.
Subjects: Grand unified models Baryons and Gauge bosons and Leptons Bayesian methods Cherenkov detectors
Published: 2022

98. Motion of a Charged Particle around a Black Hole Permeated by Magnetic Field and its Chaotic Characters

Author: Nakamura, Y., Ishizuka, T., Takeuti, M., editor, and Buchler, J.-R., editor
Published: 1993
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99. Neutron-antineutron oscillation search using a 0.37 megaton-years exposure of Super-Kamiokande

Author: Collaboration, Super-Kamiokande, Abe, K., Bronner, C., Hayato, Y., Ikeda, M., Imaizumi, S., Ito, H., Kameda, J., Kataoka, Y., Miura, M., Moriyama, S., Nagao, Y., Nakahata, M., Nakajima, Y., Nakayama, S., Okada, T., Okamoto, K., Orii, A., Pronost, G., Sekiya, H., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Yano, T., Akutsu, R., Han, S., Kajita, T., Okumura, K., Tashiro, T., Wang, R., Xia, J., Bravo-Berguño, D., Labarga, L., Marti, Ll., Zaldivar, B., Blaszczyk, F. d. M., Kearns, E., Gustafson, J. D., Raaf, J. L., Stone, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Mine, S., Smy, M. B., Sobel, H. W., Takhistov, V., Weatherly, P., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Coffani, A., Drapier, O., Hedri, S. El, Giampaolo, A., Gonin, M., Mueller, Th. A., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Anthony, L. H. V., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Machado, L. N., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Ospina, N., Ludovici, L., Nishimura, Y., Cao, S., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Matsubara, T., Nakadaira, T., Jakkapu, M., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Nakano, Y., Shiozawa, T., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Ali, A., Ashida, Y., Feng, J., Hirota, S., Ichikawa, A. K., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Fernandez, P., McCauley, N., Mehta, P., Pritchard, A., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Niwa, T., Sato, K., Tsukada, M., Mijakowski, P., Posiadala-Zezula, M., Jung, C. K., Vilela, C., Wilking, M. J., Yanagisawa, C., Harada, M., Hagiwara, K., Horai, T., Ishino, H., Ito, S., Koshio, Y., Ma, W., Piplani, N., Sakai, S., Kuno, Y., Barr, G., Barrow, D., Cook, L., Goldsack, A., Samani, S., Simpson, C., Wark, D., Nova, F., Boschi, T., Di Lodovico, F., Sedgwick, S. Molina, Taani, M., Zsoldos, S., Yang, J. Y., Jenkins, S. J., McElwee, J. M., Thiesse, M. D., Thompson, L. F., Malek, M., Stone, O., Okazawa, H., Kim, S. B., Yu, I., Nishijima, K., Koshiba, M., Ogawa, N., Iwamoto, K., Yokoyama, M., Martens, K., Vagins, M. R., Kuze, M., Izumiyama, S., Tanaka, M., Yoshida, T., Inomoto, M., Ishitsuka, M., Matsumoto, R., Ohta, K., Shinoki, M., Martin, J. F., Tanaka, H. A., Towstego, T., Hartz, M., Konaka, A., de Perio, P., Prouse, N. W., Pointon, B. W., Chen, S., Xu, B. D., Richards, B., Jamieson, B., Walker, J., Minamino, A., Pintaudi, G., Sasaki, R., Abe, K., Bronner, C., Hayato, Y., Ikeda, M., Imaizumi, S., Ito, H., Kameda, J., Kataoka, Y., Miura, M., Moriyama, S., Nagao, Y., Nakahata, M., Nakajima, Y., Nakayama, S., Okada, T., Okamoto, K., Orii, A., Pronost, G., Sekiya, H., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Yano, T., Akutsu, R., Han, S., Kajita, T., Okumura, K., Tashiro, T., Wang, R., Xia, J., Bravo-Bergu??o, D., Labarga, L., Marti, Ll., Zaldivar, B., Blaszczyk, F. ???d. ???M., Kearns, E., Gustafson, J. ???D., Raaf, J. ???L., Stone, J. ???L., Wan, L., Wester, T., Bian, J., Griskevich, N. ???J., Kropp, W. ???R., Locke, S., Mine, S., Smy, M. ???B., Sobel, H. ???W., Takhistov, V., Weatherly, P., Hill, J., Kim, J. ???Y., Lim, I. ???T., Park, R. ???G., Bodur, B., Scholberg, K., Walter, C. ???W., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Gonin, M., Mueller, Th. ???A., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. ???S., Learned, J. ???G., Anthony, L. ???H. ???V., Sztuc, A. ???A., Uchida, Y., Berardi, V., Catanesi, M. ???G., Radicioni, E., Calabria, N. F., Nascimento Machado, L., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Ospina, N., Ludovici, L., Nishimura, Y., Cao, S., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Matsubara, T., Nakadaira, T., Jakkapu, M., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Nakano, Y., Shiozawa, T., Suzuki, A. ???T., Takeuchi, Y., Yamamoto, S., Ali, A., Ashida, Y., Feng, J., Hirota, S., Ichikawa, A. ???K., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. ???A., Yasutome, K., Fernandez, P., Mccauley, N., Mehta, P., Pritchard, A., Tsui, K. ???M., Fukuda, Y., Itow, Y., Menjo, H., Niwa, T., Sato, K., Tsukada, M., Mijakowski, P., Posiadala-Zezula, M., Jung, C. ???K., Vilela, C., Wilking, M. ???J., Yanagisawa, C., Harada, M., Hagiwara, K., Horai, T., Ishino, H., Ito, S., Koshio, Y., Ma, W., Piplani, N., Sakai, S., Kuno, Y., Barr, G., Barrow, D., Cook, L., Goldsack, A., Samani, S., Simpson, C., Wark, D., Nova, F., Boschi, T., Di Lodovico, F., Molina Sedgwick, S., Taani, M., Zsoldos, S., Yang, J. ???Y., Jenkins, S. ???J., Mcelwee, J. ???M., Thiesse, M. ???D., Thompson, L. ???F., Malek, M., Stone, O., Okazawa, H., Kim, S. ???B., Yu, I., Nishijima, K., Koshiba, M., Ogawa, N., Iwamoto, K., Yokoyama, M., Martens, K., Vagins, M. ???R., Kuze, M., Izumiyama, S., Tanaka, M., Yoshida, T., Inomoto, M., Ishitsuka, M., Matsumoto, R., Ohta, K., Shinoki, M., Martin, J. ???F., Tanaka, H. ???A., Towstego, T., Hartz, M., Konaka, A., de Perio, P., Prouse, N. ???W., Pointon, B. ???W., Chen, S., Xu, B. ???D., Richards, B., Jamieson, B., Walker, J., Minamino, A., Pintaudi, G., Sasaki, R., Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Super-Kamiokande, and UAM. Departamento de Física Teórica
Subjects: Baryogenesis and Leptogenesis Hadron mixing Neutrons C-symmetry Artificial neural networks Cherenkov detectors, Particle physics, data analysis method, Limits, Rest, Annihilation, FOS: Physical sciences, KAMIOKANDE, Antineutron, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Baryon asymmetry, statistical analysis, neutrino: atmosphere, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle Physics Experiments, Neutron, 010306 general physics, n anti-n: oscillation, baryon number: violation, oscillation: time, Physics, lifetime, 010308 nuclear & particles physics, Oscillation, High Energy Physics::Phenomenology, nucleus, Física, neutrino: background, baryon number: conservation law, Full data, baryon: asymmetry, High Energy Physics::Experiment, Baryon number, Super-Kamiokande, Simulation, Model, Bar (unit), experimental results
Abstract: As a baryon number violating process with ΔB=2, neutron-antineutron oscillation (n→n¯) provides a unique test of baryon number conservation. We have performed a search for n→n¯ oscillation with bound neutrons in Super-Kamiokande, with the full dataset from its first four run periods, representing an exposure of 0.37 Mton−years. The search used a multivariate analysis trained on simulated n→n¯ events and atmospheric neutrino backgrounds and resulted in 11 candidate events with an expected background of 9.3 events. In the absence of statistically significant excess, we derived a lower limit on n¯ appearance lifetime in O16 nuclei of 3.6×1032 years and on the neutron-antineutron oscillation time of τn→n¯>4.7×108 s at 90% C.L.
Published: 2021
Full Text: View/download PDF

100. Diffuse supernova neutrino background search at Super-Kamiokande

Author: Kamiokande Collaboration, Abe, K., Bronner, C., Hayato, Y., Hiraide, K., Ikeda, M., Imaizumi, S., Kameda, J., Kanemura, Y., Kataoka, Y., Miki, S., Miura, M., Moriyama, S., Nagao, Y., Nakahata, M., Nakayama, S., Okada, T., Okamoto, K., Orii, A., Pronost, G., Sekiya, H., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Xia, J., Megias, G. D., Bravo-Bergu, D., Labarga, L., Marti, Ll., Zaldivar, B., Pointon, B. W., Blaszczyk, F. d. M., Kearns, E., Raaf, J. L., Stone, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Mine, S., Smy, M. B., Sobel, H. W., Takhistov, V., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Cao, S., Bernard, L., Coffani, A., Drapier, O., Hedri, S. El, Giampaolo, A., Gonin, M., Mueller, Th. A., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Machado, L. N., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ospina, N., Ludovici, L., Maekawa, Y., Nishimura, Y., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Kotsar, Y., Nakano, Y., Ozaki, H., Shiozawa, T., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Ali, A., Ashida, Y., Feng, J., Hirota, S., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Fernandez, P., McCauley, N., Mehta, P., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Niwa, T., Sato, K., Tsukada, M., Lagoda, J., Lakshmi, S. M., Mijakowski, P., Zalipska, J., Jiang, J., Jung, C. K., Vilela, C., Wilking, M. J., Yanagisawa, C., Hagiwara, K., Harada, M., Horai, T., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Ma, W., Piplani, N., Sakai, S., Barr, G., Barrow, D., Cook, L., Goldsack, A., Samani, S., Wark, D., Nova, F., Boschi, T., Di Lodovico, F., Gao, J., Migenda, J., Taani, M., Zsoldos, S., Yang, J. Y., Jenkins, S. J., Malek, M., McElwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Seo, J. W., Yu, I., Nishijima, K., Koshiba, M., Iwamoto, K., Nakagiri, K., Nakajima, Y., Ogawa, N., Yokoyama, M., Martens, K., Vagins, M. R., Kuze, M., Izumiyama, S., Yoshida, T., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Matsumoto, R., Ohta, K., Shinoki, M., Suganuma, T., Ichikawa, A. K., Martin, J. F., Tanaka, H. A., Towstego, T., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., de Perio, P., Prouse, N. W., Chen, S., Xu, B. D., Zhang, Y., Posiadala-Zezula, M., Hadley, D., O'Flaherty, M., Richards, B., Jamieson, B., Walker, J., Minamino, A., Pintaudi, G., Sano, S., Sasaki, R., Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Super-Kamiokande, UAM. Departamento de Física Teórica, Abe, K., Bronner, C., Hayato, Y., Hiraide, K., Ikeda, M., Imaizumi, S., Kameda, J., Kanemura, Y., Kataoka, Y., Miki, S., Miura, M., Moriyama, S., Nagao, Y., Nakahata, M., Nakayama, S., Okada, T., Okamoto, K., Orii, A., Pronost, G., Sekiya, H., Shiozawa, M., Sonoda, Y., Suzuki, Y., Takeda, A., Takemoto, Y., Takenaka, A., Tanaka, H., Watanabe, S., Yano, T., Han, S., Kajita, T., Okumura, K., Tashiro, T., Xia, J., Megias, G. D., Bravo-Berguno, D., Labarga, L., Marti, L., Zaldivar, B., Pointon, B. W., Blaszczyk, F. D. M., Kearns, E., Raaf, J. L., Stone, J. L., Wan, L., Wester, T., Bian, J., Griskevich, N. J., Kropp, W. R., Locke, S., Mine, S., Smy, M. B., Sobel, H. W., Takhistov, V., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Bodur, B., Scholberg, K., Walter, C. W., Cao, S., Bernard, L., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Gonin, M., Mueller, Th. A., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J. S., Learned, J. G., Anthony, L. H. V., Martin, D., Scott, M., Sztuc, A. A., Uchida, Y., Berardi, V., Catanesi, M. G., Radicioni, E., Calabria, N. F., Nascimento Machado, L., De Rosa, G., Collazuol, G., Iacob, F., Lamoureux, M., Mattiazzi, M., Ospina, N., Ludovici, L., Maekawa, Y., Nishimura, Y., Friend, M., Hasegawa, T., Ishida, T., Kobayashi, T., Jakkapu, M., Matsubara, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Kotsar, Y., Nakano, Y., Ozaki, H., Shiozawa, T., Suzuki, A. T., Takeuchi, Y., Yamamoto, S., Ali, A., Ashida, Y., Feng, J., Hirota, S., Kikawa, T., Mori, M., Nakaya, T., Wendell, R. A., Yasutome, K., Fernandez, P., Mccauley, N., Mehta, P., Tsui, K. M., Fukuda, Y., Itow, Y., Menjo, H., Niwa, T., Sato, K., Tsukada, M., Lagoda, J., Lakshmi, S. M., Mijakowski, P., Zalipska, J., Jiang, J., Jung, C. K., Vilela, C., Wilking, M. J., Yanagisawa, C., Hagiwara, K., Harada, M., Horai, T., Ishino, H., Ito, S., Kitagawa, H., Koshio, Y., Ma, W., Piplani, N., Sakai, S., Barr, G., Barrow, D., Cook, L., Goldsack, A., Samani, S., Wark, D., Nova, F., Boschi, T., Di Lodovico, F., Gao, J., Migenda, J., Taani, M., Zsoldos, S., Yang, J. Y., Jenkins, S. J., Malek, M., Mcelwee, J. M., Stone, O., Thiesse, M. D., Thompson, L. F., Okazawa, H., Kim, S. B., Seo, J. W., Yu, I., Nishijima, K., Koshiba, M., Iwamoto, K., Nakagiri, K., Nakajima, Y., Ogawa, N., Yokoyama, M., Martens, K., Vagins, M. R., Kuze, M., Izumiyama, S., Yoshida, T., Inomoto, M., Ishitsuka, M., Ito, H., Kinoshita, T., Matsumoto, R., Ohta, K., Shinoki, M., Suganuma, T., Ichikawa, A. K., Martin, J. F., Tanaka, H. A., Towstego, T., Akutsu, R., Gousy-Leblanc, V., Hartz, M., Konaka, A., De Perio, P., Prouse, N. W., Chen, S., Xu, B. D., Zhang, Y., Posiadala-Zezula, M., Hadley, D., O'Flaherty, M., Richards, B., Jamieson, B., Walker, J., Minamino, A., Pintaudi, G., Sano, S., and Sasaki, R.
Subjects: Supernova, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, KAMIOKANDE, Neutrino, Supernova, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), energy: threshold, neutrino: energy, 0103 physical sciences, Neutrino, threshold, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], neutrino: supernova, Neutrinos, 010306 general physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, background, Física, neutrino: background, Beta Decay, sensitivity, 3. Good health, flux, Supernovae, 13. Climate action, Cosmic Rays and Astroparticle Extrasolar neutrino astronomy Water Cherenkov Detectors, High Energy Physics::Experiment, gadolinium, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], energy
Abstract: A new search for the diffuse supernova neutrino background (DSNB) flux has been conducted at Super-Kamiokande (SK), with a $22.5\times2970$-kton$\cdot$day exposure from its fourth operational phase IV. The new analysis improves on the existing background reduction techniques and systematic uncertainties and takes advantage of an improved neutron tagging algorithm to lower the energy threshold compared to the previous phases of SK. This allows for setting the world's most stringent upper limit on the extraterrestrial $\bar{\nu}_e$ flux, for neutrino energies below 31.3 MeV. The SK-IV results are combined with the ones from the first three phases of SK to perform a joint analysis using $22.5\times5823$ kton$\cdot$days of data. This analysis has the world's best sensitivity to the DSNB $\bar{\nu}_e$ flux, comparable to the predictions from various models. For neutrino energies larger than 17.3 MeV, the new combined $90\%$ C.L. upper limits on the DSNB $\bar{\nu}_e$ flux lie around $2.7$ cm$^{-2}$$\cdot$$\text{sec}^{-1}$, strongly disfavoring the most optimistic predictions. Finally, potentialities of the gadolinium phase of SK and the future Hyper-Kamiokande experiment are discussed., Comment: 42 pages, 37 figures, 14 tables
Published: 2021
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