T
Tomoaki Hotta
Researcher at Osaka University
Publications - 82
Citations - 2425
Tomoaki Hotta is an academic researcher from Osaka University. The author has contributed to research in topics: Photon & Meson. The author has an hindex of 21, co-authored 64 publications receiving 2299 citations.
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Journal ArticleDOI
Evidence for a narrow S = +1 baryon resonance in photoproduction from the neutron.
T. Nakano,D. S. Ahn,J. K. Ahn,Hidetoshi Akimune,Y. Asano,W. C. Chang,S. Daté,Hiroyasu Ejiri,H. Fujimura,M. Fujiwara,M. Fujiwara,K. Hicks,Tomoaki Hotta,K. Imai,Takuji Ishikawa,Takahiro Iwata,H. Kawai,Z. Y. Kim,K. Kino,H. Kohri,N. Kumagai,S. Makino,T. Matsumura,T. Matsumura,N. Matsuoka,Tsutomu Mibe,Tsutomu Mibe,K. Miwa,M. Miyabe,Y. Miyachi,Y. Miyachi,M. Morita,N. Muramatsu,M. Niiyama,Masaharu Nomachi,Y. Ohashi,T. Ooba,Haruo Ohkuma,D. S. Oshuev,Chary Rangacharyulu,Atsushi Sakaguchi,T. Sasaki,P. M. Shagin,P. M. Shagin,Y. Shiino,Hajime Shimizu,Yorihito Sugaya,M. Sumihama,M. Sumihama,Hiroyuki Toyokawa,A. Wakai,C. W. Wang,S. C. Wang,K. Yonehara,K. Yonehara,Tetsuhiko Yorita,Masato Yoshimura,M. Yosoi,R. G.T. Zegers +58 more
TL;DR: The gamman-->K(+)K(-)n reaction on 12C has been studied by measuring both K+ and K- at forward angles and a sharp baryon resonance peak was observed, consistent with an antidecuplet of baryons predicted by the chiral soliton model.
Journal ArticleDOI
The γ→p→K+Λ and γ→p→K+Σ0 reactions at forward angles with photon energies from 1.5 to 2.4 GeV
M. Sumihama,J. K. Ahn,Hidetoshi Akimune,Y. Asano,C. Bennhold,W. C. Chang,T. Corthals,S. Daté,H. Ejiri,H. Fujimura,M. Fujiwara,M. Fujiwara,M. Guidal,K. Hicks,Tomoaki Hotta,K. Imai,T. Ishikawa,T. Iwata,H. Kawai,Z. Y. Kim,K. Kino,H. Kohri,N. Kumagai,S. Makino,Terry Mart,T. Matsumura,N. Matsuoka,Tsutomu Mibe,M. Miyabe,Y. Miyachi,Masato Morita,Norihito Muramatsu,T. Nakano,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,Hiroyuki Toyokawa,A. Wakai,C. W. Wang,S. C. Wang,K. Yonehara,Tetsuhiko Yorita,M. Yosoi,R. G. T. Zegers +53 more
TL;DR: Differential cross sections and photon-beam asymmetries for the {gamma}-vectorp{yields}K{sup +}{lambda} and δ-gamma-vector p{y yieldss} K{sup+sigma}{sup 0} reactions have been measured in the photon energy range from 1.5 to 2.4 GeV and in the angular range from {theta}{sub c.m}=0 deg. to 60 deg.
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 Article
陽子と重陽子からのλ(1520)の閾値付近の光生成
Norihito Muramatsu,Jau-Ann Chen,W. C. Chang,D. S. Ahn,J. K. Ahn,Hidetoshi Akimune,Y. Asano,S. Daté,H. Ejiri,H. Fujimura,M. Fujiwara,Shuji Fukui,S. Hasegawa,K. Hicks,K. Horie,Tomoaki Hotta,K. Imai,T. Ishikawa,T. Iwata,Y. Kato,Hikaru Kawai,Koichi Kino,H. Kohri,N. Kumagai,S. Makino,T Matsuda,T. Matsumura,N. Matsuoka,Tsutomu Mibe,Manabu Miyabe,M Miyachi,T. Nakano,M. Niiyama +32 more
Journal Article
E γ =1.5~2.4GeVでのγ → n→K + Σ - 反応についての微分断面積と光子ビームの非対称性
H. Kohri,D. S. Ahn,J. K. Ahn,Hidetoshi Akimune,Y. Asano,W. C. Chang,S. Daté,H. Ejiri,Shuji Fukui,H. Fujimura,M. Fujiwara,S. Hasegawa,K. Hicks,Tomoaki Hotta,K. Imai,T. Ishikawa,T. Iwata,Hikaru Kawai,Z. Y. Kim,Koichi Kino,N. Kumagai,S. Makino,T Mart,T Matsuda,T. Matsumura,N. Matsuoka,Tsutomu Mibe,Manabu Miyabe,Y. Miyachi,Mizuki Morita,Norihito Muramatsu,T. Nakano,M. Niiyama,Masaharu Nomachi,Yoji Ohashi,Haruo Ohkuma,T. Ooba,D. S. Oshuev,Chary Rangacharyulu,Aya Sakaguchi +39 more