Y
Y. Hayato
Researcher at University of Tokyo
Publications - 175
Citations - 14067
Y. Hayato is an academic researcher from University of Tokyo. The author has contributed to research in topics: Neutrino & Neutrino oscillation. The author has an hindex of 58, co-authored 175 publications receiving 12874 citations. Previous affiliations of Y. Hayato include Kyoto University & KEK.
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Journal ArticleDOI
Test of Lorentz invariance with atmospheric neutrinos
K. Abe,Y. Haga,Y. Hayato,M. Ikeda,K. Iyogi,J. Kameda,Yasuhiro Kishimoto,M. Miura,S. Moriyama,Masayuki Nakahata,Yuuki Nakano,S. Nakayama,Hiroyuki Sekiya,Masato Shiozawa,Yoshihiro Suzuki,Atsushi Takeda,H. K. Tanaka,T. Tomura,Koh Ueno,R. A. Wendell,T. Yokozawa,T. J. Irvine,Takaaki Kajita,I. Kametani,K. Kaneyuki,K. P. Lee,T. McLachlan,Y. Nishimura,E. Richard,Kimihiro Okumura,L. Labarga,P. Fernandez,J. Gustafson,E. Kearns,E. Kearns,J. L. Raaf,J. L. Stone,J. L. Stone,Lawrence Sulak,S. Berkman,H.A. Tanaka,S. Tobayama,M. Goldhaber,G. Carminati,W. R. Kropp,S. Mine,P. Weatherly,A. L. Renshaw,M. B. Smy,M. B. Smy,H. W. Sobel,H. W. Sobel,V. Takhistov,K. S. Ganezer,B. L. Hartfiel,John Hill,W. E. Keig,N. Hong,J. Y. Kim,I. T. Lim,T. Akiri,A. Himmel,Kate Scholberg,Kate Scholberg,C. W. Walter,C. W. Walter,T. Wongjirad,T. Ishizuka,Shigeki Tasaka,J. S. Jang,J. G. Learned,S. Matsuno,S. N. Smith,Takehisa Hasegawa,T. Ishida,T. Ishii,T. Kobayashi,T. Nakadaira,K. Nakamura,Yuichi Oyama,K. Sakashita,T. Sekiguchi,T. Tsukamoto,A. T. Suzuki,Y. Takeuchi,C. Bronner,Seiko Hirota,K. Huang,K. Ieki,T. Kikawa,A. Minamino,A. Murakami,Tsuyoshi Nakaya,Tsuyoshi Nakaya,Kazuhiro Suzuki,Susumu Takahashi,K. Tateishi,Y. Fukuda,K. Choi,Yoshitaka Itow,G. Mitsuka,P. Mijakowski,Joshua Hignight,J. Imber,C. K. Jung,C. Yanagisawa,Hirokazu Ishino,A. Kibayashi,Yusuke Koshio,Takaaki Mori,Makoto Sakuda,R. Yamaguchi,T. Yano,Y. Kuno,R. Tacik,R. Tacik,S. B. Kim,H. Okazawa,Y. Choi,K. Nishijima,M. Koshiba,Yusuke Suda,Y. Totsuka,Masashi Yokoyama,K. Martens,Ll. Marti,M. R. Vagins,M. R. Vagins,J. F. Martin,P. de Perio,A. Konaka,M. J. Wilking,Song Chen,Yejin Zhang,K. Connolly,R. J. Wilkes +135 more
TL;DR: In this article, a search for neutrino oscillations induced by Lorentz violation was performed using 4,438 live-days of Super-Kamiokande atmospheric neutrinos data.
Journal ArticleDOI
First study of neutron tagging with a water Cherenkov detector
Haruki Watanabe,Huaqiao Zhang,K. Abe,Y. Hayato,T. Iida,M. Ikeda,J. Kameda,Ken-ichiro Kobayashi,Yusuke Koshio,M. Miura,Shigetaka Moriyama,Masayuki Nakahata,Shoei Nakayama,Y. Obayashi,H. Ogawa,Hiroyuki Sekiya,Masato Shiozawa,Yasunari Suzuki,Atsushi Takeda,Y. Takenaga,Y. Takeuchi,K. Ueno,K. Ueshima,S. Yamada,S. Hazama,I. Higuchi,C. Ishihara,Takaaki Kajita,K. Kaneyuki,G. Mitsuka,H. Nishino,Ko Okumura,N. Tanimoto,S. Clark,Shantanu Desai,Frédéric Dufour,E. Kearns,E. Kearns,S. Likhoded,Michael Litos,J. L. Raaf,J. L. Stone,J. L. Stone,Lawrence Sulak,W. Wang,M. Goldhaber,K. Bays,David William Casper,J. P. Cravens,J. Dunmore,J. Griskevich,W. R. Kropp,D. W. Liu,S. Mine,C. Regis,Michael B. Smy,Michael B. Smy,H. W. Sobel,H. W. Sobel,K. S. Ganezer,John Hill,W. E. Keig,J. S. Jang,I. S. Jeong,J. Y. Kim,I. T. Lim,M. Fechner,Kate Scholberg,Kate Scholberg,C. W. Walter,C. W. Walter,R. Wendel,Shigeki Tasaka,G. Guillian,J. G. Learned,S. Matsuno,M. D. Messier,Y. Watanabe,Takehisa Hasegawa,T. Ishida,T. Ishii,T. Kobayashi,T. Nakadaira,Koji Nakamura,K. Nishikawa,Yuichi Oyama,K. Sakashita,T. Sekiguchi,T. Tsukamoto,Atsumu Suzuki,A. K. Ichikawa,A. Minamino,Tsuyoshi Nakaya,Masashi Yokoyama,Todd Haines,S. Dazeley,R. Svoboda,R. Gran,Alec Habig,Y. Fukuda,Yoshitaka Itow,Takaaki Tanaka,C. K. Jung,C. McGrew,A. Sarrat,R. Terri,C. Yanagisawa,N. Tamura,Y. Idehara,Hirokazu Ishino,A. Kibayashi,Makoto Sakuda,Y. Kuno,Minoru Yoshida,Soo-Bong Kim,B. S. Yang,T. Ishizuka,H. Okazawa,Y. Choi,H. Seo,Y. Furuse,Kyoshi Nishijima,Y. Yokosawa,Masatoshi Koshiba,Y. Totsuka,Mark R. Vagins,Mark R. Vagins,Shaomin Chen,Zhi Deng,G. Gong,Yueh-Feng Liu,T. Xue,D. Kielczewska,H. G. Berns,K. K. Shiraishi,E. Thrane,R. J. Wilkes +136 more
TL;DR: In this paper, a first study of neutron tagging was conducted in Super-Kamiokande, a 50,000 ton water Cherenkov detector, and the tagging efficiencies of thermal neutrons were evaluated in a 0.2% GdCl 3 -water solution and pure water.
Journal ArticleDOI
Search for nucleon decay via modes favored by supersymmetric grand unification models in Super-Kamiokande-I
Katsuhiro Kobayashi,M. Earl,M. Earl,Y. Ashie,J. Hosaka,K. Ishihara,Yoshitaka Itow,J. Kameda,Yusuke Koshio,A. Minamino,C. Mitsuda,M. Miura,Shigetaka Moriyama,Masayuki Nakahata,Toshio Namba,R. Nambu,Y. Obayashi,Masato Shiozawa,Yasunari Suzuki,Y. Takeuchi,K. Taki,Shinya Yamada,M. Ishitsuka,Takaaki Kajita,K. Kaneyuki,Shoei Nakayama,A. Okada,Ko Okumura,T. Ooyabu,C. Saji,Y. Takenaga,Shantanu Desai,E. Kearns,S. Likhoded,J. L. Stone,L. R. Sulak,W. Wang,M. Goldhaber,David William Casper,J. P. Cravens,W. Gajewski,W. R. Kropp,D. W. Liu,S. Mine,Michael B. Smy,Henry W. Sobel,C. W. Sterner,Mark R. Vagins,K. S. Ganezer,J. Hill,W. E. Keig,J. S. Jang,J. Y. Kim,I. T. Lim,Kate Scholberg,C. W. Walter,R. W. Ellsworth,Shigeki Tasaka,G. Guillian,A. Kibayashi,John G. Learned,S. Matsuno,D. Takemori,M. D. Messier,Y. Hayato,A. K. Ichikawa,T. Ishida,T. Ishii,T. Iwashita,T. Kobayashi,T. Maruyama,Koji Nakamura,K. Nitta,Yuichi Oyama,Makoto Sakuda,Y. Totsuka,Atsumu Suzuki,Masaya Hasegawa,K. Hayashi,I. Kato,H. Maesaka,Taichi Morita,T. Nakadaira,Tsuyoshi Nakaya,K. Nishikawa,T. Sasaki,S. Ueda,Shoji Yamamoto,Masashi Yokoyama,T. J. Haines,T. J. Haines,S. Dazeley,S. Hatakeyama,R. Svoboda,E. Blaufuss,J. A. Goodman,G. W. Sullivan,D. Turcan,Alec Habig,Y. Fukuda,C. K. Jung,T. Kato,Magdalena Malek,C. Mauger,C. McGrew,A. Sarrat,E. Sharkey,C. Yanagisawa,T. Toshito,Kazumasa Miyano,N. Tamura,J. Ishii,Y. Kuno,Minoru Yoshida,S. B. Kim,J. Yoo,H. Okazawa,T. Ishizuka,Y. Choi,H. Seo,Y. Gando,Takehisa Hasegawa,Kunio Inoue,J. Shirai,A. Suzuki,Masatoshi Koshiba,Y. Nakajima,Kyoshi Nishijima,T. Harada,Hirokazu Ishino,Y. Watanabe,D. Kielczewska,D. Kielczewska,J. Zalipska,H. G. Berns,R. Gran,K. K. Shiraishi,A. L. Stachyra,K. Washburn,R. J. Wilkes +139 more
TL;DR: In this paper, the results for nucleon decay searches via modes favored by supersymmetric grand unified models in Super-Kamiokande were reported, and the lower limits of partial nucleon lifetime were established.
Journal ArticleDOI
Search for nucleon decay into charged antilepton plus meson in Super-Kamiokande I and II
H. Nishino,H. Nishino,K. Abe,Y. Hayato,T. Iida,M. Ikeda,J. Kameda,Yusuke Koshio,M. Miura,S. Moriyama,Masayuki Nakahata,S. Nakayama,Y. Obayashi,Hiroyuki Sekiya,Masato Shiozawa,Yasunari Suzuki,Atsushi Takeda,Y. Takenaga,Y. Takeuchi,Koh Ueno,K. Ueshima,Hiroshi Watanabe,S. Yamada,S. Hazama,I. Higuchi,C. Ishihara,H. Kaji,Takaaki Kajita,K. Kaneyuki,G. Mitsuka,Ko Okumura,N. Tanimoto,Frédéric Dufour,E. Kearns,E. Kearns,Michael Litos,J. L. Raaf,J. L. Stone,J. L. Stone,L. R. Sulak,M. Goldhaber,K. Bays,J. P. Cravens,W. R. Kropp,S. Mine,C. Regis,M. B. Smy,M. B. Smy,H. W. Sobel,H. W. Sobel,K. S. Ganezer,John Hill,W. E. Keig,J. S. Jang,J. Y. Kim,I. T. Lim,Justin Albert,Kate Scholberg,Kate Scholberg,C. W. Walter,C. W. Walter,R. A. Wendell,T. Ishizuka,Shigeki Tasaka,J. G. Learned,S. Matsuno,Y. Watanabe,Takehisa Hasegawa,T. Ishida,T. Ishii,T. Kobayashi,T. Nakadaira,K. Nakamura,K. Nishikawa,Yuichi Oyama,K. Sakashita,T. Sekiguchi,T. Tsukamoto,A. T. Suzuki,A. Minamino,Tsuyoshi Nakaya,Tsuyoshi Nakaya,Masashi Yokoyama,Y. Fukuda,Yoshitaka Itow,Tetsuya S. Tanaka,C. K. Jung,G. D. Lopez,C. McGrew,C. Yanagisawa,N. Tamura,Y. Idehara,Makoto Sakuda,Y. Kuno,Minoru Yoshida,S. B. Kim,B. S. Yang,H. Okazawa,Y. Choi,H. Seo,Y. Furuse,K. Nishijima,Y. Yokosawa,M. Koshiba,Y. Totsuka,M. R. Vagins,M. R. Vagins,Shaomin Chen,Y. Heng,J. Liu,Zishuo Yang,Haoxiong Zhang,D. Kielczewska,K. Connolly,E. Thrane,R. J. Wilkes +115 more
TL;DR: In this paper, lower limits on the nucleon partial lifetime at 90% confidence level were obtained, ranging from $3.6 to $8.2, depending on the decay modes.
Journal ArticleDOI
Measurement of the inclusive νμ charged current cross section on carbon in the near detector of the T2K experiment
K. Abe,N. Abgrall,Hiroaki Aihara,T. Akiri,Justin Albert,C. Andreopoulos,C. Andreopoulos,Shigeki Aoki,Akitaka Ariga,Tomoko Ariga,S. Assylbekov,D. Autiero,M. Barbi,Gareth J. Barker,G.D. Barr,M. Bass,M. Batkiewicz,F. Bay,S. W. Bentham,Vincenzo Berardi,B. E. Berger,S. Berkman,Iain Alexander Bertram,Dmitriy Beznosko,S. Bhadra,F. d. M. Blaszczyk,A. Blondel,C. Bojechko,S. B. Boyd,D. Brailsford,A. Bravar,C. Bronner,D. G. Brook-Roberge,N. J. Buchanan,R. G. Calland,J. Caravaca Rodríguez,S. L. Cartwright,R. Castillo,M. G. Catanesi,A. Cervera,D. Cherdack,G. Christodoulou,A. Clifton,J. P. Coleman,S. J. Coleman,G. Collazuol,K. Connolly,L. Cremonesi,A. Curioni,A. Dabrowska,I. Z. Danko,Rhiju Das,Scott Davis,M. Day,J. P. A. M. de André,P. de Perio,G. De Rosa,T. Dealtry,T. Dealtry,T. Dealtry,S. R. Dennis,C. Densham,C. Densham,F. Di Lodovico,S. Di Luise,J. Dobson,O. Drapier,T. Duboyski,Frédéric Dufour,J. Dumarchez,S. A. Dytman,Michal Dziewiecki,M. Dziomba,S. Emery,Antonio Ereditato,L. Escudero,Alexander Finch,E. Frank,M. Friend,Yuki Fujii,Y. Fukuda,A. P. Furmanski,V. Galymov,A. Gaudin,S. Giffin,C. Giganti,K. Gilje,T. Golan,J.J. Gómez-Cadenas,M. Gonin,N. Grant,D. Gudin,P. Guzowski,D. R. Hadley,A. Haesler,M. D. Haigh,P. Hamilton,D. Hansen,T. Hara,M. Hartz,M. Hartz,T. Hasegawa,N. C. Hastings,Y. Hayato,C. Hearty,R. L. Helmer,M. Hierholzer,Joshua Hignight,A. Hillairet,A. Himmel,Takahiro Hiraki,J. Holeczek,S. Horikawa,K. Huang,A. K. Ichikawa,K. Ieki,M. Ieva,M. Ikeda,J. Imber,J. Insler,T. J. Irvine,T. Ishida,T. Ishii,S. J. Ives,K. Iyogi,A. Izmaylov,A. Jacob,B. Jamieson,R. A. Johnson,J. H. Jo,P. Jonsson,K. K. Joo,C. K. Jung,A. C. Kaboth,H. Kaji,Takaaki Kajita,H. Kakuno,J. Kameda,Y. Kanazawa,D. Karlen,D. Karlen,I. Karpikov,E. Kearns,M. M. Khabibullin,F. Khanam,A. N. Khotjantsev,D. Kielczewska,T. Kikawa,A. Kilinski,J. Y. Kim,Jungsang Kim,S. B. Kim,B. Kirby,Jan Kisiel,P. Kitching,T. Kobayashi,G. Kogan,A. Kolaceke,A. Konaka,L. L. Kormos,A. Korzenev,K. Koseki,Yusuke Koshio,K. Kowalik,I. Kreslo,W. R. Kropp,Hidetoshi Kubo,Yu. Kudenko,S. Kumaratunga,R.P. Kurjata,T. Kutter,J. Lagoda,K. Laihem,A. Laing,Marco Laveder,M. Lawe,K. P. Lee,C. Licciardi,I. T. Lim,T. Lindner,C. Lister,R. P. Litchfield,R. P. Litchfield,A. Longhin,G. D. Lopez,L. Ludovici,M. Macaire,L. Magaletti,Kendall Mahn,M. Malek,S. Manly,A. Marchionni,A. D. Marino,J. Marteau,J. F. Martin,T. Maruyama,J. Marzec,P. Masliah,E. L. Mathie,V. Matveev,K. Mavrokoridis,E. Mazzucato,N. McCauley,K. S. McFarland,C. McGrew,T. McLachlan,M. Messina,C. J. Metelko,C. J. Metelko,M. Mezzetto,P. Mijakowski,C. A. Miller,A. Minamino,O. V. Mineev,S. Mine,A. Missert,M. Miura,L. Monfregola,S. Moriyama,Th. A. Mueller,A. Murakami,M. Murdoch,S. Murphy,S. Murphy,J. Myslik,T. Nagasaki,T. Nakadaira,Masayuki Nakahata,T. Nakai,K. Nakajima,K. Nakamura,S. Nakayama,Tsuyoshi Nakaya,K. Nakayoshi,D. Naples,T. Nicholls,T. Nicholls,C. Nielsen,K. Nishikawa,Yukika Nishimura,H. M. O'Keeffe,Y. Obayashi,R. Ohta,Ko Okumura,T. Okusawa,W. Oryszczak,S. M. Oser,Minoru Otani,R. A. Owen,Yuichi Oyama,M. Y. Pac,V. Palladino,V. Paolone,D. Payne,G. F. Pearce,G. F. Pearce,O. Perevozchikov,J. D. Perkin,E. S. Pinzon Guerra,P. Plonski,E. Poplawska,B. A. Popov,M. Posiadala,J. M. Poutissou,R. Poutissou,P. Przewlocki,B. Quilain,E. Radicioni,P. N. Ratoff,M. Ravonel,M. A.M. Rayner,Matthew T. Reeves,E. Reinherz-Aronis,F. Retiere,Anne Robert,P. A. Rodrigues,E. Rondio,S. Roth,André Rubbia,D. Ruterbories,R. Sacco,K. Sakashita,F. Sanchez,E. Scantamburlo,Kate Scholberg,J. Schwehr,Mark Scott,D. I. Scully,Y. Seiya,T. Sekiguchi,Hiroyuki Sekiya,D. Sgalaberna,M. Shibata,Masato Shiozawa,S. Short,Y. Shustrov,P. Sinclair,B. Smith,Richard J.H. Smith,M. B. Smy,Jan T. Sobczyk,H. W. Sobel,M. Sorel,L. Southwell,P. Stamoulis,J. Steinmann,B. Still,A. T. Suzuki,Kazuhiro Suzuki,S. Y. Suzuki,Yasunari Suzuki,T. Szeglowski,M. Szeptycka,R. Tacik,R. Tacik,M. Tada,Susumu Takahashi,Atsushi Takeda,Y. Takeuchi,H.A. Tanaka,Masashi Tanaka,M. M. Tanaka,I. Taylor,D. Terhorst,R. Terri,Lester D.R. Thompson,A. Thorley,S. Tobayama,W. H. Toki,T. Tomura,Y. Totsuka,C. Touramanis,T. Tsukamoto,M. Tzanov,Y. Uchida,Koh Ueno,Antonin Vacheret,M. R. Vagins,G. Vasseur,T. Wachala,A. V. Waldron,C. W. Walter,Jing Wang,D. L. Wark,D. L. Wark,D. L. Wark,M. O. Wascko,A. C. Weber,A. C. Weber,A. C. Weber,R. A. Wendell,R. J. Wilkes,M. J. Wilking,C. Wilkinson,Z. Williamson,J. R. Wilson,R. J. Wilson,T. Wongjirad,Yoshikazu Yamada,Koji Yamamoto,C. Yanagisawa,S. Yen,N. Yershov,Masashi Yokoyama,T. Yuan,A. Zalewska,L. Zambelli,K. Zaremba,M. Ziembicki,E. D. Zimmerman,M. Zito,J. Åmuda +371 more
TL;DR: In this article, the authors acknowledge the support of MEXT, Japan, NSERC, NRC and CFI, Canada; CEA and CNRS/IN2P3, France; DFG, Germany; INFN, Italy; RAS, RFBR and the Ministry of Education and Science of the Russian Federation; MEST and NRF, South Korea; MICINN and CPAN, Spain; SNSF and SER, Switzerland; STFC, UK; NSF and DOE, USA.