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Dive into the research topics where Osamu Miyamura is active.

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Featured researches published by Osamu Miyamura.


Nuclear Physics | 1991

Study of correlations of positive and negative charged particles

Yoshikazu Takahashi; C.H. Chan; B.L. Dong; J.G. Duthie; John C. Gregory; T. Hayashi; H. Yokomi; Mark J. Christl; James H. Derrickson; P. B. Eby; W. F. Fountain; T. A. Parnell; F. E. Roberts; S. Nagamiya; Sh. Dake; T. Tominaga; M. Fuki; A. Iyono; T. Ogata; Osamu Miyamura

Abstract Particle correlations of the central collision events of 32 S + Pb at 200 GeV/AMU have been studied by utilizing a Magnetic-Interferometric-Emulsion-Chamber (MAGIC) detector. Particle angles, momentum, and charge-signs are measured for all produced charged tracks for each event. Two-particle correlation functions, C 2 = dN (¦ p 1 − p 2 ¦= q )/ dp 1 dp 2 , for (++), (−−) and (+-) particles are examined. A source radius around 4 – 6 fm is observed for overall identical particle correlations, while unexpected short-range correlations of unlike-sign pairs are observed in the high rapidity region. An analysis of unlike-sign pairs in terms of resonance decays indicated that a large amount (40% relative to pions) of η or ω mesons (decaying into 3 π), or of scalar iso-scalar σ mesons (decaying into 2π) would be required to explain some of the data. Multi-particle charge-sign clusters are recognized; however, their “run-test” and “conjugate-test” show small deviations from statistical fluctuations.


Archive | 1991

A Measurement of the Landau Pomeranchuk Migdal Effect in Electromagnetic Showers

Steven Chester Strausz; K. Asakimori; T. H. Burnett; Michael L. Cherry; Sh. Dake; James H. Derrickson; W. F. Fountain; M. Fuki; John C. Gregory; Takaya Hayashi; R. Holynski; J. Iwai; A. I. Iyono; W. V. Jones; A. Jurak; Terry Allen Koss; Jere J. Lord; Osamu Miyamura; H. Oda; T. Ogata; Erik Donley Olson; Thomas A. Parnell; F. E. Roberts; Yoshikazu Takahashi; T. Tominaga; John W. Watts; John P. Wefel; M. Wilber; B. Wilczynska; H. Wilczynski


Archive | 1995

Cosmic Ray Proton and Helium Spectra - Combined JACEE Results

Michael L. Cherry; K. Asakimori; T. H. Burnett; K. Chevli; Mark J. Christl; Sh. Dake; James H. Derrickson; W. F. Fountain; M. Fuki; John C. Gregory; Takaya Hayashi; R. Holynski; J. Iwai; A. I. Iyono; John E. Johnson; W. V. Jones; Masanori Kobayashi; Jere J. Lord; Osamu Miyamura; Kyung Ho Moon; H. Oda; T. Ogata; Erik Donley Olson; Thomas A. Parnell; F. E. Roberts; Kishore Sengupta; Takayuki Shiina; Steven Chester Strausz; T. Sugitate; Yu Takahashi


Archive | 1997

Emulsion Chamber Experiments for the International Space Station

Osamu Miyamura; T. Sugitate; T. Tominaga; T. Kohno; I. Tanihata; Shohei Yanagita; Hiroyuki Yokomi; Masanori Kobayashi; M. Fuki; K. Asakimori; A. I. Iyono; Toshitaka Kajino; T. Yuda; Syuichi Kuramata; Makoto Ichimura; Shinya Kasai; Yu Takahashi; John C. Gregory; Michael L. Cherry; John P. Wefel; Thomas A. Parnell; R. Jeffrey Wilkes; H. Wilczynski


Archive | 1995

The Milagro Data Acquisition System

J.-N. Capdevielle; A. Kawahara; Y. Takao; T. Sugitate; Osamu Miyamura; T. Ogata; Bei Lei Dong; Yu Takahashi


Archive | 1995

Asymmetric Particle Emission in High Energy Cosmic Ray Interactions

H. Wilczynski; K. Asakimori; T. H. Burnett; Michael L. Cherry; Mark J. Christl; Sh. Dake; James H. Derrickson; W. F. Fountain; M. Fuki; John C. Gregory; Takaya Hayashi; R. Holynski; J. Iwai; A. I. Iyono; W. V. Jones; Masanori Kobayashi; Jere J. Lord; Osamu Miyamura; H. Oda; T. Ogata; Erik Donley Olson; Thomas A. Parnell; Steven Chester Strausz; T. Sugitate; Yoshikazu Takahashi; T. Tominaga; John P. Wefel; B. Wilczynska; R. Jeffrey Wilkes; W. Wolter


Archive | 1995

Antarctic Balloon Flights for JACEE

R. Jeffrey Wilkes; K. Asakimori; T. H. Burnett; Michael L. Cherry; Mark J. Christl; Sh. Dake; James H. Derrickson; W. F. Fountain; M. Fuki; John C. Gregory; Takaya Hayashi; R. Holynski; J. Iwai; A. I. Iyono; W. V. Jones; Masanori Kobayashi; Jere J. Lord; Osamu Miyamura; Kyung Ho Moon; B. S. Nilsen; H. Oda; T. Ogata; Erik Donley Olson; T. A. Parenll; Steven Chester Strausz; T. Sugitate; Yu Takahashi; T. Tominaga; John P. Wefel; B. Wilczynska


Archive | 1995

Search for Isotropic Gamma Radiation between 65 and 200 TeV: constraints on topological defects and galactic dark matter in the form of molecular hydrogen

Osamu Miyamura; K. Asakimori; T. H. Burnett; Michael L. Cherry; Mark J. Christl; Sh. Dake; James H. Derrickson; W. F. Fountain; M. Fuki; John C. Gregory; Takaya Hayashi; R. Holynski; J. Iwai; A. I. Iyono; W. V. Jones; A. Kawahara; Masanori Kobayashi; J. J. Lord; Kyung Ho Moon; H. Oda; T. Ogata; Erik Donley Olson; Thomas A. Parnell; Steven Chester Strausz; T. Sugitate; Yu Takahashi; Y. Takao; T. Tominaga; J. P. Wefel; B. Wilczynska


Archive | 1995

Multi-particle Correlations in S+Pb and Pb+Pb Interactions at CERN SPS Energies

Yu Takahashi; C. H. Chan; John C. Gregory; T. Tominaga; Takayuki Shiina; M. J. Cristl; James H. Derrickson; W. F. Fountain; Thomas A. Parnell; John W. Watts; S. Nagamiya; Sh. Dake; M. Fuki; A. I. Iyono; T. Ogata; Osamu Miyamura; Hiroyuki Yokomi


Archive | 1995

High Energy Gamma Rays above 3 TeV Observed by Balloon-Borne JACEE Emulsion Chambers

Yu Takahashi; K. Asakimori; T. H. Burnett; Michael L. Cherry; Mark J. Christl; Sh. Dake; James H. Derrickson; W. F. Fountain; M. Fuki; John C. Gregory; Takaya Hayashi; R. Holynski; J. Iwai; A. I. Iyono; W. V. Jones; A. Kawahara; Masanori Kobayashi; S. A. Lintzenich; J. J. Lord; Osamu Miyamura; Kyung Ho Moon; H. Oda; T. Ogata; E. D. Olsen; Thomas A. Parnell; Steven Chester Strausz; T. Sugitate; T. Tominaga; J. P. Wefel; B. Wilczynska

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M. Fuki

Okayama University of Science

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John C. Gregory

University of Alabama in Huntsville

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Thomas A. Parnell

University of Alabama in Huntsville

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J. Iwai

University of Washington

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Yoshikazu Takahashi

Marshall Space Flight Center

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R. Holynski

University of Washington

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W. V. Jones

Louisiana State University

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