E
E. Niu
Researcher at Toho University
Publications - 20
Citations - 406
E. Niu is an academic researcher from Toho University. The author has contributed to research in topics: Charm (quantum number) & Fermilab. The author has an hindex of 12, co-authored 20 publications receiving 398 citations.
Papers
More filters
Journal ArticleDOI
Charm meson production in 800 GeV/ c proton-emulsion interactions
Koichi Kodama,N. Ushida,A. Mokhtarani,V. S. Paolone,J. T. Volk,J. O. Wilcox,P. M. Yager,R. M. Edelstein,A. P. Freyberger,D. B. Gibaut,R. J. Lipton,William R. Nichols,D. M. Potter,James Russ,Y. Zhang,H. I. Jang,J. Y. Kim,T. I. Kim,I. T. Lim,M. Y. Pac,B. R. Baller,R. J. Stefanski,Kazuma Nakazawa,Shigeki Tasaka,K. S. Chung,S. H. Chung,D. C. Kim,I. G. Park,M. S. Park,J. S. Song,C. S. Yoon,Michiyuki Chikawa,T. Abe,Terushige Fujii,G. Fujioka,K. Fujiwara,H. Fukushima,T. Hara,Y. Takahashi,K. Taruma,Y. Tsuzuki,C. Yokoyama,S. D. Chang,Byung Gu Cheon,J. H. Cho,J. S. Kang,C. O. Kim,K. Y. Kim,T. Y. Kim,J. C. Lee,S. B. Lee,G. Y. Lim,S. W. Nam,T. S. Shin,Kwang Souk Sim,J. K. Woo,Y. Isokane,Y. Tsuneoka,Shigeki Aoki,A. Gauthier,K. Hoshino,H. Kitamura,Makoto Kobayashi,Motoaki Miyanishi,Kouji Nakamura,M. Nakamura,Y. Nakamura,S. Nakanishi,K. Niu,Kimio Niwa,H. Tajima,J. M. Dunlea,S. G. Frederiksen,S. Kuramata,B. G. Lundberg,G. A. Oleynik,N. W. Reay,K. Reibel,R. A. Sidwell,N. R. Stanton,K. Moriyama,H. Shibata,George R. Kalbfleisch,P. Skubic,J. Snow,S. E. Willis,W. Y. Yuan,O. Kusumoto,T. Okusawa,M. Teranaka,T. Tominaga,T. Watanabe,J. Yamato,H. Okabe,J. Yokota,M. Adachi,M. Kazuno,F. Minakawa,E. Niu,H. Shibuya,S. Watanabe,O. Fukuda,Yoshihiro Sato,I. Tezuka,Saewoong Bahk,S. K. Kim +105 more
TL;DR: In this paper, the authors reported results on D0 and D+ production in proton-emulsion interactions at s = 38.7 GeV and b = 0.84 +0.10 −0.08 (GeV/c)−2.
Journal ArticleDOI
Measurement of the branching ratio for D+→K*(892)0μ+ν
Koichi Kodama,N. Ushida,A. Mokhtarani,V. S. Paolone,J. T. Volk,J. O. Wilcox,P. M. Yager,R. M. Edelstein,A. P. Freyberger,D. B. Gibaut,R. J. Lipton,William R. Nichols,D. M. Potter,James Russ,C. Zhang,Y. Zhang,H. I. Jang,J. Y. Kim,T. I. Kim,I. T. Lim,M. Y. Pac,B. R. Baller,R. J. Stefanski,Kazuma Nakazawa,K. S. Chung,S. H. Chung,D. C. Kim,I. G. Park,M. S. Park,J. S. Song,C. S. Yoon,Michiyuki Chikawa,T. Abe,Terushige Fujii,G. Fujioka,K. Fujiwara,H. Fukushima,T. Hara,Y. Takahashi,K. Taruma,Y. Tsuzuki,C. Yokoyama,S. D. Chang,Byung Gu Cheon,J. H. Cho,J. S. Kang,C. O. Kim,K. Y. Kim,T. Y. Kim,J. C. Lee,S. B. Lee,G. Y. Lim,S. W. Nam,T. S. Shin,Kwang Souk Sim,J. K. Woo,Y. Isokane,Y. Tsuneoka,Shigeki Aoki,A. Gauthier,K. Hoshino,H. Kitamura,Makoto Kobayashi,Motoaki Miyanishi,Kouji Nakamura,M. Nakamura,Y. Nakamura,S. Nakanishi,K. Niu,Kimio Niwa,H. Tajima,J. M. Dunlea,S. G. Frederiksen,S. Kuramata,B. G. Lundberg,G. A. Oleynik,N. W. Reay,K. Reibel,R. A. Sidwell,N. R. Stanton,K. Moriyama,H. Shibata,George R. Kalbfleisch,P. Skubic,J. Snow,S. E. Willis,O. Kusumoto,T. Okusawa,M. Teranaka,T. Tominaga,T. Yoshida,H. Yuuki,H. Okabe,J. Yokota,M. Adachi,M. Kazuno,E. Niu,H. Shibuya,S. Watanabe,I. Ohtsuka,Yoshihiro Sato,I. Tezuka,Saewoong Bahk,S. K. Kim +103 more
TL;DR: The branching ratio for the decay mode D + → K ∗0 μ + ν has been measured with two methods as discussed by the authors, one using D0→K−μ+ν for normalization, and the other using D+ → K−π+π+ν.
Journal ArticleDOI
Measurement of the form factor ratios in the decay D+ → K∗ (892)0μ+ν
Koichi Kodama,N. Ushida,A. Mokhtarani,V. S. Paolone,J. T. Volk,J. O. Wilcox,P. M. Yager,R. M. Edelstein,A. P. Freyberger,D. B. Gibaut,R. J. Lipton,William R. Nichols,D. M. Potter,James Russ,C. Zhang,Y. Zhang,H. I. Jang,J. Y. Kim,T. I. Kim,I. T. Lim,M. Y. Pac,B. R. Baller,R. J. Stefanski,Kazuma Nakazawa,K. S. Chung,S. H. Chung,D. C. Kim,I. G. Park,M. S. Park,J. S. Song,C. S. Yoon,Michiyuki Chikawa,T. Abe,Shigeki Aoki,Terushige Fujii,G. Fujioka,K. Fujiwara,H. Fukushima,T. Hara,Y. Takahashi,K. Taruma,Y. Tsuzuki,C. Yokoyama,S. D. Chang,Byung Gu Cheon,J. H. Cho,J. S. Kang,C. O. Kim,K. Y. Kim,T. Y. Kim,J. C. Lee,S. B. Lee,G. Y. Lim,S. W. Nam,T. S. Shin,Kwang Souk Sim,J. K. Woo,Y. Isokane,Y. Tsuneoka,A. Gauthier,K. Hoshino,H. Kitamura,Makoto Kobayashi,Motoaki Miyanishi,Kouji Nakamura,M. Nakamura,S. Nakanishi,K. Niu,Kimio Niwa,H. Tajima,J. M. Dunlea,S. G. Frederiksen,S. Kuramata,B. G. Lundberg,G. A. Oleynik,N. W. Reay,K. Reibel,R. A. Sidwell,N. R. Stanton,K. Moriyama,H. Shibata,George R. Kalbfleisch,P. Skubic,J. Snow,S. E. Willis,W. Y. Yuan,O. Kusumoto,T. Okusawa,M. Teranaka,T. Tominaga,T. Yoshida,J. Yuuki,H. Okabe,J. Yokota,M. Adachi,M. Kazuno,E. Niu,H. Shibuya,S. Watanabe,I. Ohtsuka,Yoshihiro Sato,I. Tezuka,Saewoong Bahk,S. K. Kim +103 more
TL;DR: In this paper, a measurement of the form factor ratios in the decay D + → K ∗ (892) 0 μ + ν is obtained by fitting to the decay angles and q2 of 305 events.
Journal ArticleDOI
Upper limits for charm hadron decays to two muons plus hadrons
Koichi Kodama,N. Ushida,A. Mokhtarani,V. S. Paolone,J. T. Volk,J. O. Wilcox,P. M. Yager,R. M. Edelstein,A. P. Freyberger,D. B. Gibaut,R. J. Lipton,William R. Nichols,D. M. Potter,James Russ,C. Zhang,Y. Zhang,H. I. Jang,J. Y. Kim,T. I. Kim,I. T. Lim,M. Y. Pac,B. R. Baller,R. J. Stefanski,Kazuma Nakazawa,K. S. Chung,S. H. Chung,D. C. Kim,I. G. Park,M. S. Park,J. S. Song,C. S. Yoon,M. Aryal,N. W. Reay,R. A. Sidwell,N. R. Stanton,Michiyuki Chikawa,T. Abe,Terushige Fujii,G. Fujioka,K. Fujiwara,H. Fukushima,T. Hara,Y. Takahashi,K. Taruma,Y. Tsuzuki,C. Yokoyama,S. D. Chang,Byung Gu Cheon,J. H. Cho,J. S. Kang,C. O. Kim,K. Y. Kim,T. Y. Kim,J. C. Lee,S. B. Lee,G. Y. Lim,S. W. Nam,T. S. Shin,Kwang Souk Sim,J. K. Woo,Y. Isokane,Y. Tsuneoka,Shigeki Aoki,A. Gauthier,K. Hoshino,H. Kitamura,Makoto Kobayashi,Masahiro Komatsu,Motoaki Miyanishi,Kouji Nakamura,M. Nakamura,Y. Nakamura,S. Nakanishi,K. Niu,Kimio Niwa,M. Nomura,K. Okada,H. Tajima,T. Toshitou,S. Yoshida,J. M. Dunlea,S. G. Frederiksen,S. Kuramata,B. G. Lundberg,G. A. Oleynik,K. Reibel,K. Moriyama,H. Shibata,George R. Kalbfleisch,P. Skubic,J. Snow,S. E. Willis,O. Kusumoto,T. Okusawa,M. Teranaka,T. Tominaga,Tomoko Yoshida,H. Yuuki,H. Okabe,J. Yokota,M. Kazuno,T. Koya,E. Niu,S. Ogawa,H. Shibuya,S. Watanabe,N. Yasuda,M. Kamiya,Yoshihiro Sato,I. Tezuka,M. Yamaki,Saewoong Bahk,S. K. Kim +112 more
TL;DR: In this paper, a search for charm hadron decays into two muons plus one or more hadrons has been carried out using a hybrid emulsion spectrometer, which is sensitive to modes with missing neutrals, e.g. π0μ+μ− and ϱ±μ+m−, as well as to constrained modes having visible invariant masses equal to those of charm states.
Journal ArticleDOI
Hybrid emulsion spectrometer for the detection of hadronically produced heavy flavor states
Koichi Kodama,N. Ushida,Richard Lander,A. Mokhtarani,V. S. Paolone,J. O. Wilcox,P. M. Yager,R. M. Edelstein,A. P. Freyberger,D. B. Gibaut,R. J. Lipton,William R. Nichols,D. M. Potter,J. R. Russ,Y. Zhang,H. I. Jang,J. Y. Kim,M. Y. Pac,B. R. Baller,R. J. Stefanski,Kazuma Nakazawa,Shigeki Tasaka,Y. S. Choi,K. H. Chung,D. C. Kim,I. G. Park,J. S. Song,C. S. Yoon,Michiyuki Chikawa,T. Abe,Terushige Fujii,G. Fujioka,K. Fujiwara,H. Fukushima,T. Hara,Y. Takahashi,K. Taruma,Y. Tsuzuki,C. Yokoyama,S. D. Chang,B. G. Cheon,J. H. Cho,J. S. Kang,C. O. Kim,K. Y. Kim,T. Y. Kim,J. C. Lee,S. B. Lee,G. Y. Lim,I. T. Lim,S. W. Nam,T. S. Shin,Kwang Souk Sim,J. K. Woo,Y. Isokane,Y. Tsuneoka,Shigeki Aoki,A. Gauthier,K. Hoshino,H. Kitamura,Makoto Kobayashi,Motoaki Miyanishi,K. Nakamura,M. Nakamura,Y. Nakamura,S. Nakanishi,K. Niu,Kimio Niwa,H. Tajima,J. M. Dunlea,S. G. Frederiksen,S. Kuramata,B. G. Lundberg,G. A. Oleynik,N. W. Reay,K. Reibel,C. Rush,R. A. Sidwell,N. R. Stanton,K. Moriyama,H. Shibata,T. S. Jaffery,George R. Kalbfleisch,P. Skubic,J. Snow,S. E. Willis,W. Y. Yuan,O. Kusumoto,T. Okusawa,M. Teranaka,T. Tominaga,T. Watanabe,J. Yamato,H. Okabe,J. Yokota,M. Kazuno,F. Minakawa,E. Niu,S. Ono,H. Shibuya,S. Watanabe,Yoshihiro Sato,I. Tezuka,Saewoong Bahk,S. K. Kim +104 more
TL;DR: A hybrid apparatus consisting of a movable emulsion target and a magnetic spectrometer was used in a fixed target Fermilab Tevatron experiment to study the production of heavy quarks by high-energy hadron beams.