M
M. Takahata
Researcher at Niigata University
Publications - 18
Citations - 26905
M. Takahata is an academic researcher from Niigata University. The author has contributed to research in topics: Neutrino & Neutrino detector. The author has an hindex of 18, co-authored 18 publications receiving 23751 citations.
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Journal ArticleDOI
Geant4—a simulation toolkit
S. Agostinelli,John Allison,K. Amako,J. Apostolakis,Henrique Araujo,P. Arce,Makoto Asai,D. Axen,S. Banerjee,G. Barrand,F. Behner,Lorenzo Bellagamba,J. Boudreau,L. Broglia,A. Brunengo,H. Burkhardt,Stephane Chauvie,J. Chuma,R. Chytracek,Gene Cooperman,G. Cosmo,P. V. Degtyarenko,Andrea Dell'Acqua,G. Depaola,D. Dietrich,R. Enami,A. Feliciello,C. Ferguson,H. Fesefeldt,Gunter Folger,Franca Foppiano,Alessandra Forti,S. Garelli,S. Gianì,R. Giannitrapani,D. Gibin,J. J. Gomez Y Cadenas,I. González,G. Gracia Abril,G. Greeniaus,Walter Greiner,Vladimir Grichine,A. Grossheim,Susanna Guatelli,P. Gumplinger,R. Hamatsu,K. Hashimoto,H. Hasui,A. Heikkinen,A. S. Howard,Vladimir Ivanchenko,A. Johnson,F.W. Jones,J. Kallenbach,Naoko Kanaya,M. Kawabata,Y. Kawabata,M. Kawaguti,S.R. Kelner,Paul R. C. Kent,A. Kimura,T. Kodama,R. P. Kokoulin,M. Kossov,Hisaya Kurashige,E. Lamanna,Tapio Lampén,V. Lara,Veronique Lefebure,F. Lei,M. Liendl,W. S. Lockman,Francesco Longo,S. Magni,M. Maire,E. Medernach,K. Minamimoto,P. Mora de Freitas,Yoshiyuki Morita,K. Murakami,M. Nagamatu,R. Nartallo,Petteri Nieminen,T. Nishimura,K. Ohtsubo,M. Okamura,S. W. O'Neale,Y. Oohata,K. Paech,J Perl,Andreas Pfeiffer,Maria Grazia Pia,F. Ranjard,A.M. Rybin,S.S Sadilov,E. Di Salvo,Giovanni Santin,Takashi Sasaki,N. Savvas,Y. Sawada,Stefan Scherer,S. Sei,V. Sirotenko,David J. Smith,N. Starkov,H. Stoecker,J. Sulkimo,M. Takahata,Satoshi Tanaka,E. Tcherniaev,E. Safai Tehrani,M. Tropeano,P. Truscott,H. Uno,L. Urbán,P. Urban,M. Verderi,A. Walkden,W. Wander,H. Weber,J.P. Wellisch,Torre Wenaus,D.C. Williams,Douglas Wright,T. Yamada,H. Yoshida,D. Zschiesche +126 more
TL;DR: The Gelfant 4 toolkit as discussed by the authors is a toolkit for simulating the passage of particles through matter, including a complete range of functionality including tracking, geometry, physics models and hits.
Journal ArticleDOI
Evidence for oscillation of atmospheric neutrinos
Y. Fukuda,T. Hayakawa,E. Ichihara,Kunio Inoue,K. Ishihara,H. Ishino,Yoshitaka Itow,Takaaki Kajita,J. Kameda,S. Kasuga,Ken-ichiro Kobayashi,Yohei Kobayashi,Yusuke Koshio,M. Miura,Masayuki Nakahata,S. Nakayama,A. Okada,Ko Okumura,N. Sakurai,Masato Shiozawa,Yoshihiro Suzuki,Y. Takeuchi,Y. Totsuka,Shinya Yamada,M. Earl,Alec Habig,E. Kearns,M. D. Messier,Kate Scholberg,J. L. Stone,Lawrence Sulak,C. W. Walter,M. Goldhaber,T. Barszczxak,D. Casper,W. Gajewski,P. G. Halverson,J. Hsu,W. R. Kropp,L. R. Price,Frederick Reines,Michael B. Smy,Henry W. Sobel,Mark R. Vagins,K. S. Ganezer,W. E. Keig,R. W. Ellsworth,S. Tasaka,J. W. Flanagan,A. Kibayashi,John G. Learned,S. Matsuno,V. J. Stenger,D. Takemori,T. Ishii,Junichi Kanzaki,T. Kobayashi,S. Mine,K. Nakamura,K. Nishikawa,Yuichi Oyama,A. Sakai,Makoto Sakuda,Osamu Sasaki,S. Echigo,M. Kohama,A. T. Suzuki,Todd Haines,Todd Haines,E. Blaufuss,B. K. Kim,R. Sanford,R. Svoboda,M. L. Chen,Z. Conner,Z. Conner,J. A. Goodman,G. W. Sullivan,J. Hill,C. K. Jung,K. Martens,C. Mauger,C. McGrew,E. Sharkey,B. Viren,C. Yanagisawa,W. Doki,Kazumasa Miyano,H. Okazawa,C. Saji,M. Takahata,Y. Nagashima,M. Takita,Takashi Yamaguchi,Minoru Yoshida,Soo-Bong Kim,M. Etoh,K. Fujita,Akira Hasegawa,Takehisa Hasegawa,S. Hatakeyama,T. Iwamoto,M. Koga,Tomoyuki Maruyama,Hiroshi Ogawa,J. Shirai,A. Suzuki,F. Tsushima,Masatoshi Koshiba,M. Nemoto,Kyoshi Nishijima,T. Futagami,Y. Hayato,Y. Kanaya,K. Kaneyuki,Y. Watanabe,D. Kielczewska,D. Kielczewska,R. A. Doyle,J. S. George,A. L. Stachyra,L. Wai,L. Wai,R. J. Wilkes,K. K. Young +124 more
Abstract: We present an analysis of atmospheric neutrino data from a 33.0 kton yr (535-day) exposure of the Super-Kamiokande detector. The data exhibit a zenith angle dependent deficit of muon neutrinos which is inconsistent with expectations based on calculations of the atmospheric neutrino flux. Experimental biases and uncertainties in the prediction of neutrino fluxes and cross sections are unable to explain our observation. The data are consistent, however, with two-flavor ${\ensuremath{
u}}_{\ensuremath{\mu}}\ensuremath{\leftrightarrow}{\ensuremath{
u}}_{\ensuremath{\tau}}$ oscillations with ${sin}^{2}2\ensuremath{\theta}g0.82$ and $5\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}l\ensuremath{\Delta}{m}^{2}l6\ifmmode\times\else\texttimes\fi{}1{0}^{\ensuremath{-}3}\mathrm{eV}{}^{2}$ at 90% confidence level.
Journal ArticleDOI
The Super-Kamiokande detector
S. Fukuda,Y. Fukuda,T. Hayakawa,E. Ichihara,M. Ishitsuka,Yoshitaka Itow,Takaaki Kajita,J. Kameda,K. Kaneyuki,S. Kasuga,K. Kobayashi,Y. Kobayashi,Yusuke Koshio,M. Miura,S. Moriyama,Masayuki Nakahata,S. Nakayama,Toshio Namba,Y. Obayashi,A. Okada,M. Oketa,Kimihiro Okumura,T. Oyabu,N. Sakurai,Masato Shiozawa,Yoshihiro Suzuki,Y. Takeuchi,T. Toshito,Y. Totsuka,Shoichi Yamada,S. Desai,M. Earl,J. T. Hong,E. Kearns,M. Masuzawa,M. D. Messier,M. D. Messier,J. L. Stone,L. R. Sulak,C. W. Walter,W. Wang,Kate Scholberg,T. Barszczak,David William Casper,D. W. Liu,W. Gajewski,P. G. Halverson,J. Hsu,W. R. Kropp,S. Mine,L. R. Price,Frederick Reines,M. B. Smy,Henry W. Sobel,M. R. Vagins,K. S. Ganezer,W. E. Keig,R. W. Ellsworth,S. Tasaka,J. W. Flanagan,A. Kibayashi,John G. Learned,S. Matsuno,V. J. Stenger,Y. Hayato,T. Ishii,A. K. Ichikawa,Junichi Kanzaki,T. Kobayashi,T. Maruyama,Koji Nakamura,Y. Oyama,A. Sakai,Makoto Sakuda,Osamu Sasaki,S. Echigo,T. Iwashita,M. Kohama,Atsumu Suzuki,Masaya Hasegawa,T. Inagaki,I. Kato,H. Maesaka,Tsuyoshi Nakaya,K. Nishikawa,Shuji Yamamoto,Todd Haines,Todd Haines,B. K. Kim,R. Sanford,R. Svoboda,E. Blaufuss,M. L. Chen,Z. Conner,Z. Conner,J. A. Goodman,E. Guillian,G. W. Sullivan,D. Turcan,Alec Habig,M. Ackerman,Florian Goebel,J. Hill,J. Hill,C. K. Jung,T. Kato,D. Kerr,Magdalena Malek,K. Martens,C. Mauger,C. McGrew,E. Sharkey,B. Viren,B. Viren,C. Yanagisawa,W. Doki,S. Inaba,K. Ito,M. Kirisawa,M. Kitaguchi,C. Mitsuda,K. Miyano,C. Saji,M. Takahata,M. Takahashi,K. Higuchi,Y. Kajiyama,A. Kusano,Y. Nagashima,K. Nitta,M. Takita,Takashi Yamaguchi,Minoru Yoshida,Hyosun Kim,Soo-Bong Kim,J. Yoo,H. Okazawa,M. Etoh,K. Fujita,Y. Gando,Akira Hasegawa,T. Hasegawa,S. Hatakeyama,Kunio Inoue,K. Ishihara,T. Iwamoto,M. Koga,I. Nishiyama,Hiroshi Ogawa,J. Shirai,A. Suzuki,T. Takayama,F. Tsushima,M. Koshiba,Y. Ichikawa,T. Hashimoto,Y. Hatakeyama,M. Koike,T. Horiuchi,M. Nemoto,K. Nishijima,H. Takeda,H. Fujiyasu,T. Futagami,Hirokazu Ishino,Y. Kanaya,Mikio Morii,H. Nishihama,Hiroaki Nishimura,Toshio Suzuki,Y. Watanabe,D. Kielczewska,D. Kielczewska,U. Golebiewska,H. G. Berns,S. B. Boyd,S. B. Boyd,R. A. Doyle,J. S. George,J. S. George,A. L. Stachyra,A. L. Stachyra,L. Wai,L. Wai,R. J. Wilkes,K. K. Young,H. Kobayashi +186 more
TL;DR: Super-Kamiokande is the world's largest water Cherenkov detector, with net mass 50,000 tons as discussed by the authors, which collected 1678 live-days of data, observing neutrinos from the Sun, Earth's atmosphere, and the K2K long-baseline neutrino beam with high efficiency.
Journal ArticleDOI
Measurements of the solar neutrino flux from Super-Kamiokande's first 300 days
Y. Fukuda,T. Hayakawa,E. Ichihara,Kunio Inoue,K. Ishihara,H. Ishino,Yoshitaka Itow,Takaaki Kajita,J. Kameda,S. Kasuga,K. Kobayashi,Yohei Kobayashi,Yusuke Koshio,K. Martens,M. Miura,Masayuki Nakahata,S. Nakayama,A. Okada,M. Oketa,Ko Okumura,M. Ota,N. Sakurai,Masato Shiozawa,Yasunari Suzuki,Y. Takeuchi,Y. Totsuka,Shinya Yamada,M. Earl,Alec Habig,J. T. Hong,E. Kearns,S. B. Kim,S. B. Kim,M. Masuzawa,M. D. Messier,Kate Scholberg,J. L. Stone,L. R. Sulak,C. W. Walter,M. Goldhaber,T. Barszczak,W. Gajewski,P. G. Halverson,J. Hsu,W. R. Kropp,L. R. Price,Frederick Reines,H. W. Sobel,Mark R. Vagins,K. S. Ganezer,W. E. Keig,R. W. Ellsworth,S. Tasaka,J. W. Flanagan,A. Kibayashi,John G. Learned,S. Matsuno,V. J. Stenger,D. Takemori,T. Ishii,Junichi Kanzaki,T. Kobayashi,K. Nakamura,K. Nishikawa,Yuichi Oyama,A. Sakai,Makoto Sakuda,Osamu Sasaki,S. Echigo,M. Kohama,A. T. Suzuki,Todd Haines,Todd Haines,E. Blaufuss,R. Sanford,R. Svoboda,M. L. Chen,Z. Conner,Z. Conner,J. A. Goodman,G. W. Sullivan,Masaki Mori,Masaki Mori,J. Hill,C. K. Jung,C. Mauger,C. McGrew,E. Sharkey,B. Viren,C. Yanagisawa,W. Doki,T. Ishizuka,T. Ishizuka,Y. Kitaguchi,H. Koga,Kazumasa Miyano,H. Okazawa,C. Saji,M. Takahata,A. Kusano,Y. Nagashima,M. Takita,T. Yamaguchi,Minoru Yoshida,M. Etoh,K. Fujita,Akira Hasegawa,Takehisa Hasegawa,S. Hatakeyama,T. Iwamoto,T. Kinebuchi,M. Koga,T. Maruyama,Hiroshi Ogawa,A. Suzuki,F. Tsushima,Masatoshi Koshiba,M. Nemoto,Kyoshi Nishijima,T. Futagami,Y. Hayato,Y. Kanaya,K. Kaneyuki,Y. Watanabe,D. Kielczewska,D. Kielczewska,R. A. Doyle,J. S. George,A. L. Stachyra,L. Wai,J. Wilkes,K. K. Young +131 more
TL;DR: The first results of the solar neutrino flux measurement from Super-Kamiokande are presented in this article, where the results are obtained from data taken between 31 May 1996, and 23 June 1997.
Journal ArticleDOI
Tau neutrinos favored over sterile neutrinos in atmospheric muon neutrino oscillations.
S. Fukuda,Y. Fukuda,M. Ishitsuka,Yoshitaka Itow,Takaaki Kajita,J. Kameda,K. Kaneyuki,K. Kobayashi,Yusuke Koshio,M. Miura,S. Moriyama,Masayuki Nakahata,S. Nakayama,Y. Obayashi,A. Okada,Ko Okumura,N. Sakurai,Masato Shiozawa,Yoshihiro Suzuki,H. Takeuchi,Y. Takeuchi,T. Toshito,Y. Totsuka,Shoichi Yamada,M. Earl,Alec Habig,Alec Habig,E. Kearns,M. D. Messier,Kate Scholberg,J. L. Stone,L. R. Sulak,C. W. Walter,M. Goldhaber,T. Barszczak,David William Casper,W. Gajewski,W. R. Kropp,S. Mine,L. R. Price,M. B. Smy,Henry W. Sobel,M. R. Vagins,K. S. Ganezer,W. E. Keig,R. W. Ellsworth,S. Tasaka,A. Kibayashi,John G. Learned,S. Matsuno,D. Takemori,Y. Hayato,T. Ishii,Takashi Kobayashi,Koji Nakamura,Y. Oyama,A. Sakai,Makoto Sakuda,Osamu Sasaki,M. Kohama,Atsumu Suzuki,T. Inagaki,K. Nishikawa,Todd Haines,Todd Haines,E. Blaufuss,B. K. Kim,R. Sanford,R. Svoboda,M. L. Chen,J. A. Goodman,G. Guillian,G. W. Sullivan,J. Hill,C. K. Jung,K. Martens,Magdalena Malek,C. Mauger,C. McGrew,E. Sharkey,B. Viren,C. Yanagisawa,M. Kirisawa,S. Inaba,C. Mitsuda,K. Miyano,H. Okazawa,C. Saji,M. Takahashi,M. Takahata,Y. Nagashima,K. Nitta,M. Takita,Minoru Yoshida,Soo-Bong Kim,T. Ishizuka,M. Etoh,Y. Gando,Takehisa Hasegawa,Kunio Inoue,K. Ishihara,T. Maruyama,J. Shirai,A. Suzuki,Masatoshi Koshiba,Y. Hatakeyama,Y. Ichikawa,M. Koike,Kyoshi Nishijima,H. Fujiyasu,Hirokazu Ishino,M. Morii,Y. Watanabe,U. Golebiewska,D. Kielczewska,D. Kielczewska,S. C. Boyd,A. L. Stachyra,R. J. Wilkes,K. K. Young +119 more
TL;DR: Using data recorded in 1100 live days of the Super-Kamiokande detector, three complementary data samples are used to study the difference in zenith angle distribution due to neutral currents and matter effects and find no evidence favoring sterile neutrinos, and reject the hypothesis at the 99% confidence level.