M
Masahiko Iwasaki
Researcher at Tokyo Institute of Technology
Publications - 109
Citations - 6326
Masahiko Iwasaki is an academic researcher from Tokyo Institute of Technology. The author has contributed to research in topics: Muon & Kaonic hydrogen. The author has an hindex of 28, co-authored 109 publications receiving 5796 citations. Previous affiliations of Masahiko Iwasaki include KEK.
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Journal ArticleDOI
Final report of the E821 muon anomalous magnetic moment measurement at BNL
G. W. Bennett,B. Bousquet,H. N. Brown,Gerry Bunce,R. M. Carey,P. Cushman,G. T. Danby,P. T. Debevec,M. Deile,H. Deng,William Deninger,S. K. Dhawan,V. P. Druzhinin,L. Duong,E. Efstathiadis,F. J. M. Farley,G.V. Fedotovich,S. Giron,Frederick Gray,D.N. Grigoriev,M. Grosse-Perdekamp,A. Grossmann,M. F. Hare,D. W. Hertzog,X. Huang,Vernon W. Hughes,Masahiko Iwasaki,Klaus-Peter Jungmann,Klaus-Peter Jungmann,D. Kawall,M. Kawamura,B.I. Khazin,J. Kindem,F. Krienen,I. Kronkvist,A. Lam,Rasmus Larsen,Y. Y. Lee,I. Logashenko,I. Logashenko,R. McNabb,R. McNabb,Wuzheng Meng,J. Mi,J. P. Miller,Y. Mizumachi,William Morse,D. Nikas,C. J. G. Onderwater,C. J. G. Onderwater,Yuri F. Orlov,C. S. Özben,C. S. Özben,J. M. Paley,Q. Peng,C. C. Polly,J. Pretz,R. Prigl,G. zu Putlitz,T. Qian,S. I. Redin,S. I. Redin,O. Rind,B. L. Roberts,N.M. Ryskulov,S. Sedykh,Yannis K. Semertzidis,P. M. Shagin,Yu. M. Shatunov,E. P. Sichtermann,E. P. Solodov,M. Sossong,A. Steinmetz,L. R. Sulak,C. Timmermans,Alexei Trofimov,D. Urner,P. von Walter,D. Warburton,D. Winn,A. Yamamoto,D. Zimmerman +81 more
TL;DR: In this article, the authors presented the final report from a series of precision measurements of the muon anomalous magnetic moment, a(mu)=(g-2)/2.54 ppm, which represents a 14-fold improvement compared to previous measurements at CERN.
Journal ArticleDOI
Measurement of the negative muon anomalous magnetic moment to 0.7 ppm
G. W. Bennett,B. Bousquet,H. N. Brown,Gerry Bunce,R. M. Carey,P. Cushman,G. T. Danby,P. T. Debevec,M. Deile,H. Deng,S. K. Dhawan,V. P. Druzhinin,L. Duong,F. J. M. Farley,G.V. Fedotovich,F. Gray,D.N. Grigoriev,M. Grosse-Perdekamp,A. Grossmann,M. F. Hare,D. W. Hertzog,[No Value] Huang,Vernon W. Hughes,Masahiko Iwasaki,Klaus-Peter Jungmann,D. Kawall,B.I. Khazin,F. Krienen,[No Value] Kronkvist,A. Lam,Rasmus Larsen,Y. Y. Lee,[No Value] Logashenko,R. McNabb,Wuzheng Meng,J. P. Miller,William Morse,D. Nikas,Cjg Onderwater,Yuri F. Orlov,C. S. Özben,C. S. Özben,J. M. Paley,Q. Peng,C. C. Polly,J. Pretz,R. Prigl,GZ Putlitz,T. Qian,S. I. Redin,S. I. Redin,O. Rind,B. L. Roberts,N.M. Ryskulov,Yannis K. Semertzidis,P. M. Shagin,YM Shatunov,E. P. Sichtermann,E. P. Solodov,M. Sossong,L. R. Sulak,Alexei Trofimov,P. von Walter,A. Yamamoto,X. Huang,I. Kronkvist,I.B. Logashenko,C.C. Polley,Yu. M. Shatunov,R. von Walter +69 more
TL;DR: The anomalous magnetic moment of the negative muon has been measured to a precision of 0.7 ppm (ppm) at the Brookhaven Alternating Gradient Synchrotron, and is over an order of magnitude more precise than the previous measurement.
Journal ArticleDOI
Precise measurement of the positive muon anomalous magnetic moment.
H. N. Brown,Gerry Bunce,R. M. Carey,P. Cushman,G. T. Danby,P. T. Debevec,M. Deile,H. Deng,William Deninger,S. K. Dhawan,V. P. Druzhinin,L. Duong,E. Efstathiadis,F. J. M. Farley,G.V. Fedotovich,S. Giron,Frederick Gray,D.N. Grigoriev,M. Grosse-Perdekamp,A. Grossmann,M. F. Hare,D. W. Hertzog,Vernon W. Hughes,Masahiko Iwasaki,Klaus-Peter Jungmann,D. Kawall,M. Kawamura,B.I. Khazin,J. Kindem,F. Krienen,I. Kronkvist,Rasmus Larsen,Y. Y. Lee,I. Logashenko,I. Logashenko,R. McNabb,W. Meng,J. Mi,J. P. Miller,W. M. Morse,D. Nikas,C. J. G. Onderwater,Yuri F. Orlov,C. S. Özben,J. M. Paley,C. C. Polly,J. Pretz,R. Prigl,G. zu Putlitz,S. I. Redin,O. Rind,B. L. Roberts,N.M. Ryskulov,S. Sedykh,Yannis K. Semertzidis,Yu. M. Shatunov,E. P. Sichtermann,E. P. Solodov,M. Sossong,A. Steinmetz,Lawrence Sulak,C. Timmermans,Alexei Trofimov,D. Urner,P. von Walter,D. Warburton,D. Winn,A. Yamamoto,D. Zimmerman +68 more
TL;DR: A precise measurement of the anomalous g value, a(mu) = (g-2)/2, for the positive muon has been made at the Brookhaven Alternating Gradient Synchrotron.
Journal ArticleDOI
A New Measurement of Kaonic Hydrogen X-rays
M. Bazzi,G. A. Beer,Luca Bombelli,A. M. Bragadireanu,Michael Cargnelli,G. Corradi,Catalina Curceanu,A. dʼUffizi,Carlo Fiorini,Tommaso Frizzi,F. Ghio,B. Girolami,C. Guaraldo,Ryugo S. Hayano,M. Iliescu,T. Ishiwatari,Masahiko Iwasaki,P. Kienle,P. Levi Sandri,Antonio Francesco Longoni,V. Lucherini,Johann Marton,Shinji Okada,Dorel Pietreanu,T. Ponta,A. Rizzo,A. Romero Vidal,Alessandro Scordo,Hexi Shi,Diana Sirghi,Florin Sirghi,H. Tatsuno,A. Tudorache,V. Tudorache,O. Vazquez Doce,E. Widmann,Johann Zmeskal +36 more
TL;DR: In this article, the K-series x rays of kaonic hydrogen atoms at the DANE electron-positron collider of Laboratori Nazionali di Frascati, and have de-termined the most precise values of the strong-interaction energy-level shift and width of the 1s atomic state.
Journal ArticleDOI
Improved limit on the muon electric dipole moment
G. W. Bennett,B. Bousquet,H. N. Brown,G. Bunce,R. M. Carey,P. Cushman,G. T. Danby,P. T. Debevec,M. Deile,H. Deng,William Deninger,Satish Dhawan,V. P. Druzhinin,L. Duong,E. Efstathiadis,F. J. M. Farley,G.V. Fedotovich,S. Giron,Frederick Gray,D.N. Grigoriev,M. Grosse-Perdekamp,A. Grossmann,M. F. Hare,D. W. Hertzog,X. Huang,V. W. Hughes,Masahiko Iwasaki,Klaus-Peter Jungmann,D. Kawall,M. Kawamura,B.I. Khazin,J. Kindem,F. Krienen,I. Kronkvist,A. Lam,Rasmus Larsen,Y.Y. Lee,I. Logashenko,I. Logashenko,R. McNabb,R. McNabb,Wuzheng Meng,J. Mi,J. P. Miller,Y. Mizumachi,William Morse,D. Nikas,C. J. G. Onderwater,C. J. G. Onderwater,Yuri F. Orlov,C. S. Özben,C. S. Özben,J. M. Paley,Q. Peng,C. C. Polly,J. Pretz,R. Prigl,G. zu Putlitz,T. Qian,S. I. Redin,S. I. Redin,O. Rind,B. L. Roberts,N.M. Ryskulov,S. Sedykh,Yannis K. Semertzidis,P. M. Shagin,Yu. M. Shatunov,E. P. Sichtermann,E. P. Solodov,M. Sossong,A. Steinmetz,Lawrence Sulak,C. Timmermans,Alexei Trofimov,D. Urner,P. von Walter,D. Warburton,D. Winn,A. Yamamoto,D. Zimmerman +80 more
TL;DR: In this paper, three independent searches for an electric dipole moment (EDM) of the positive and negative muons have been performed, using spin precession data from the muon g-2 storage ring at Brookhaven National Laboratory.