T
Takatsugu Ishikawa
Researcher at Tohoku University
Publications - 110
Citations - 1490
Takatsugu Ishikawa is an academic researcher from Tohoku University. The author has contributed to research in topics: Meson & Pion. The author has an hindex of 20, co-authored 110 publications receiving 1320 citations. Previous affiliations of Takatsugu Ishikawa include Kyoto University.
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Journal ArticleDOI
φ photo-production from Li, C, Al, and Cu nuclei at E γ=1.5-2.4 GeV
Takatsugu Ishikawa,D. S. Ahn,D. S. Ahn,J. K. Ahn,Hidetoshi Akimune,W. C. Chang,S. Daté,H. Fujimura,H. Fujimura,M. Fujiwara,M. Fujiwara,K. Hicks,Tomoaki Hotta,K. Imai,H. Kawai,K. Kino,H. Kohri,T. Matsumura,T. Matsumura,T. Matsumura,Tsutomu Mibe,Tsutomu Mibe,Tsutomu Mibe,K. Miwa,M. Miyabe,Mizuki Morita,T. Murakami,N. Muramatsu,Hironobu Nakamura,Masanobu Nakamura,Masanobu Nakamura,T. Nakano,M. Niiyama,Masaharu Nomachi,Y. Ohashi,T. Ooba,D. S. Oshuev,Chary Rangacharyulu,Atsushi Sakaguchi,Y. Shiino,Yasuhiro Sakemi,Hajime Shimizu,Yorihito Sugaya,M. Sumihama,M. Sumihama,Y. Toi,Hiroyuki Toyokawa,C. Wang,Tetsuhiko Yorita,M. Yosoi,R. G. T. Zegers,R. G. T. Zegers +51 more
TL;DR: The photo-production of mesons from Li, C, Al, and Cu at forward angles has been measured at E γ = 1.5 − 2.4 GeV, and the number of events for incoherent mesons was found to have a target mass number dependence of A 0.72 ± 0.07 in the kinematical region of | t | ⩽ 0.6 GeV 2 / c 2 as mentioned in this paper.
Journal ArticleDOI
Evidence for the Θ+ in the γd→K+K-pn reaction by detecting K+K- pairs
Takashi Nakano,Norihito Muramatsu,D. S. Ahn,J. K. Ahn,Hidetoshi Akimune,Y. Asano,W. C. Chang,S. Daté,H. Ejiri,H. Fujimura,M. Fujiwara,S. Fukui,H. Hasegawa,K. Hicks,K. Horie,Tomoaki Hotta,K. Imai,Takatsugu Ishikawa,Takahiro Iwata,Y. Kato,H. Kawai,Z. Y. Kim,K. Kino,H. Kohri,N. Kumagai,S. Makino,T. Matsuda,N. Matsuoka,T. Matsumura,Tsutomu Mibe,M. Miyabe,Y. Miyachi,M. Niiyama,Masaharu Nomachi,Y. Ohashi,Haruo Ohkuma,T. Ooba,D. S. Oshuev,Chary Rangacharyulu,Atsushi Sakaguchi,P. M. Shagin,Y. Shiino,A. Shimizu,Hajime Shimizu,Yorihito Sugaya,M. Sumihama,Y. Toi,Hiroyuki Toyokawa,A. Wakai,C. W. Wang,S. C. Wang,K. Yonehara,Tetsuhiko Yorita,Masato Yoshimura,M. Yosoi,R. G. T. Zegers +55 more
TL;DR: In this paper, the Fermi-motion-corrected nK{sup +} invariant mass distribution shows a narrow peak at 1.524{+-}0.2 nb/sr in the photon energy range from 2.0 to 2.4 GeV in the LEPS angular range.
Journal ArticleDOI
Near-threshold diffractive psi-meson photoproduction from the proton.
Tsutomu Mibe,Tsutomu Mibe,W. C. Chang,T. Nakano,D. S. Ahn,D. S. Ahn,J. K. Ahn,Hidetoshi Akimune,Y. Asano,S. Daté,H. Ejiri,H. Fujimura,M. Fujiwara,M. Fujiwara,K. Hicks,Tomoaki Hotta,K. Imai,Takatsugu Ishikawa,T. Iwata,H. Kawai,Z. Y. Kim,K. Kino,H. Kohri,N. Kumagai,S. Makino,T. Matsuda,T. Matsumura,T. Matsumura,N. Matsuoka,K. Miwa,M. Miyabe,Y. Miyachi,M. Morita,Norihito Muramatsu,M. Niiyama,Masaharu Nomachi,Yuji Ohashi,T. Ooba,Haruo Ohkuma,D. S. Oshuev,Chary Rangacharyulu,Atsushi Sakaguchi,Takuya Sasaki,P. M. Shagin,Y. Shiino,Hajime Shimizu,Yorihito Sugaya,Yorihito Sugaya,M. Sumihama,M. Sumihama,A. I. Titov,Y. Toi,Hiroyuki Toyokawa,A. Wakai,C. W. Wang,S. C. Wang,K. Yonehara,Tetsuhiko Yorita,Masato Yoshimura,M. Yosoi,R. G.T. Zegers +60 more
TL;DR: In this paper, the photoproduction of a π meson on protons was studied by means of linearly polarized photons at forward angles in the low-energy region from threshold to E{sub {gamma}}=237 GeV.
Journal ArticleDOI
Multi-GeV laser electron photon project at SPring-8
T. Nakano,J. K. Ahn,M. Fujiwara,H. Kohri,N. Matsuoka,Tsutomu Mibe,Norihito Muramatsu,Masaharu Nomachi,Hajime Shimizu,K. Yonehara,M. Yosoi,Tetsuhiko Yorita,W. C. Chang,C.W. Wang,S. C. Wang,Y. Asano,Tomoaki Hotta,Yorihito Sugaya,R. G. T. Zegers,S. Daté,N. Kumagai,Y. Ohashi,Haruo Ohkuma,Hiroyuki Toyokawa,Takahiro Iwata,Manabu Miyabe,Y. Miyachi,A. Wakai,K. Imai,Takatsugu Ishikawa,T. Sasaki,H. Kawai,T. Ooba,Y. Shiino,M. Wada,H. C. Bhang,Z. Y. Kim,Aya Sakaguchi,M. Sumihama,K. Hicks,Hidetoshi Akimune,T. Matsumura,Chary Rangacharyulu,S. Makino +43 more
Journal ArticleDOI
Proton elastic scattering from tin isotopes at 295-MeV and systematic change of neutron density distributions
S. Terashima,H. Sakaguchi,Hiroyuki Takeda,Takatsugu Ishikawa,Masatoshi Itoh,Takeo Kawabata,T. Murakami,Masaki Uchida,Y. Yasuda,M. Yosoi,M. Yosoi,Juzo Zenihiro,Hisataka Yoshida,Tetsuo Noro,Takashi Ishida,S. Asaji,T. Yonemura +16 more
TL;DR: In this paper, the relativistic Love-Franey interaction was used to explain the proton elastic scattering of a nucleus whose density distribution is well known, and applied this interaction to deduce the neutron density distributions of tin isotopes.